JP2010148971A - Health condition determining device and health condition determining program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems with the conventional health condition determining device, wherein the measured value of bioelectrical impedance or the like in the past is not used as a reference in an effective way, and day variation of a bioelectrical impedance value or the like has not been taken into consideration, so that more proper determination of health condition cannot be expected. <P>SOLUTION: This health condition determining device 1 includes: a measuring means for measuring the impedance value or the like of a subject's body; a storage means; a reference value setting means; a determination means; and a display means. The storage means stores the measurement value measured by the measuring means together with a measurement time and date. The reference value setting means sets a reference value based on a plurality of measurement values of the past measured by the measuring means in the past and stored in the storage means. The determination means determines the current health condition of the subject by comparing the reference value with a current value at the moment measured by the measuring means or set based on the impedance value or the like of the current day. The display means displays the determination result of the determination means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a health condition determination apparatus and a health condition determination program that measure an impedance value of a body of a subject and determine a current health condition of the subject from the measured impedance value.

  In recent years, body fat scales using the so-called bioelectrical impedance method have become widespread in general households. If this body fat scale is used, health-related indexes and the like can be easily known, so that the subject can perform health management on a daily basis by himself / herself.

  Such body fat scales include body fat percentage and visceral fat based on the subject's body identification information (data) and the measured impedance value (subject's bioimpedance value). Some can calculate a seed health index related to fat distribution, such as an area index, and a health index related to water content, and display the calculation result.

The electrical characteristics of the living body are as follows. That is, a tissue containing a large amount of water, such as blood, cerebrospinal fluid, and muscle, in a living body is a conductive tissue exhibiting high conductivity. In contrast, areas filled with air, such as fat, bone and lung, are electrically insulating tissues that exhibit high electrical resistance.

  The bioelectrical impedance method uses such an electrical characteristic of a living body. The bioelectrical impedance method is a method of measuring a bioimpedance value (resistance value) by passing a weak alternating current through the body and analyzing the body composition from the measured value. The current path in the living body is mainly constituted by the minimum resistance path in the living body. That is, the current mainly passes through the minimum resistance path in the living body. Therefore, muscles occupying most of the lean tissue, extracellular fluid (eg, interstitial fluid, plasma, cerebrospinal fluid, lymph fluid) and the like are the main current paths.

  The bioelectrical impedance method was originally developed in 1959 by Nyboer. J (Nivea Jay) has begun to use to study various aspects of human physiology (eg, functions related to blood flow). At that time, it was mainly used to measure body water content.

  In the bioelectrical impedance method, when an alternating current with a low frequency is used, measurement relating to extracellular fluid can be performed effectively. In addition, when an alternating current with a high frequency is used, measurement relating to intracellular fluid can be performed effectively. The bioelectrical impedance method has become an indispensable technique for detailed studies of water content in the body.

  In recent years, with the spread of body fat scales, the bioelectrical impedance method is increasingly used for fat measurement. However, with a conventional body fat scale, it is not possible to know the current health condition (water and meal intake and its influence level) in an appropriate and easy manner.

  This is because the bioimpedance value and body weight value of the subject fluctuate depending on the day and also fluctuate depending on the time within the same day, but these fluctuations are considered in the conventional body fat scale. Because there is no.

The amount of water in the human body is about 50 to 60% (% by weight) and is almost constant over time, but slightly varies. The magnitude of the variation is generally said to be about 2%. This slight fluctuation will eventually recover as long as it is not in the living body of a seriously ill patient such as renal dysfunction.

  However, this slight fluctuation causes dehydration and swelling (excessive water).

  Dehydration is a disease that occurs with respect to intracellular and extracellular water. Depending on the rate of water loss due to dehydration, the diseases may be isotonic dehydration (cholera, burns, etc.), water-deficient hypertonic dehydration (vomiting, diarrhea, etc.), sodium-deficient hypotonic dehydration (adrenal cortex) Failure).

  Swelling is a disease in which excess water accumulates in the body. Swelling occurs when water leaks from the blood vessel wall into and out of the cell (subcutaneous).

  Although swelling is also classified into many types, cardiac, renal, and liver swelling called systemic edema sometimes leads to serious disease.

  As can be understood from the above explanation, grasping fluctuations in the amount of water in the body is very important in preventing a serious disease.

  FIG. 21 shows the bioelectrical impedance method, in which the bioimpedance values of the right arm, left arm, trunk, right leg, and left leg of four subjects are measured on a day for 10 consecutive days. It is the figure which measured 4 times and averaged and showed the measurement result of the 4 persons. The measurement times are 8:30, 11:00, 13:30, and 16: 0. In the figure, the impedance value in the morning (8:30) is displayed as a reference value (100%), and the subsequent impedance value is displayed as a ratio with respect to the reference value (morning impedance value). In addition, the frequency of the alternating current used for the bioelectrical impedance method at this time is 50 kHz.

  As understood from FIG. 21, the impedance value of each part of the living body actually fluctuates considerably even within one day.

  As can be understood from FIG. 21, the impedance values of the arms and trunk are decreasing in the morning. This is due to an uneven water balance at bedtime. As for the legs, there is no morning drop in impedance values.

  However, the impedance values of the arms and trunk are decreasing in the evening. Regarding the legs, the drop in the impedance value in the evening is remarkable.

  In addition, it is thought that the impedance value of the trunk greatly fluctuates between 11:00 and 13:30 due to the effect of ingesting lunch.

  The following table (Table 1) measures the impedance value of the subject's right leg continuously over a period of 10 days at a predetermined time in the morning time zone and a predetermined time in the evening time zone. It shows how the impedance value changes over the evening. In this table, the morning impedance value is a reference value (100%), and the ratio of the evening impedance value to the reference value (morning impedance value) is shown.

  As can be seen from Table 1, the impedance value of the right leg varies considerably from day to day. On the day showing a large change, that is, the day when a small numerical value is shown in the table, it is considered that a large amount of water is accumulated in the right leg and swelling is generated.

  In addition, when these measurement results are analyzed in more detail, including the measurement results of parts other than the right arm, the rate of change in the impedance value of the right leg from morning to evening is the same as the measurement value in the evening of the impedance value of the right leg. Was found to have a high correlation and low correlation with the morning measurement of the right leg impedance value. From this, it can be considered that the rate of change in the impedance value of the right leg from morning to evening greatly depends on the impedance value of the right leg in the evening.

  The following table (Table 2) shows the measurement results obtained by measuring the impedance values of both arms of the subject continuously for 10 days at a predetermined time in the morning time zone. The unit is ohms.

  From Table 2, it is understood that the impedance values of both arms of the subject vary considerably from day to day.

  In Table 2, it is considered that the impedance value on the fourth day is relatively large because of a large amount of drinking the night before. It is considered that the impedance value on the ninth day is relatively large due to poor physical condition. In addition, the impedance value on the seventh day is particularly large because of a large amount of drinking and poor physical condition the night before.

  Furthermore, the impedance values of both arms measured in the time zone other than morning were also analyzed. As a result, similar to the results shown in Table 2, it was found that the impedance values of both arms fluctuated considerably depending on the day even in the time zone other than morning.

On the other hand, management of weight values is also effective for maintaining health. Daily fluctuation of body weight value (variation within a day)
Is an index for confirming the effect of therapy (diet exercise therapy) by managing the daily diet and exercise. When the weight value is measured at the time of getting up and before going to bed, the weight value before going to bed with respect to the weight value at the time of getting up is 100.7% or less suggests that the weight tends to decrease.

  In addition, an index for preventing heavy drinking and eating out and lack of exercise can be obtained simply by comparing the weight value when waking up one day with the weight value when waking up in the past.

  Thus, grasping the change in the body weight value is considered to be effective in maintaining good physical condition.

  In addition, a technique for determining swelling by comparing an average value of past bioimpedance values with a current bioimpedance value (for example, refer to Patent Document 1), and a swelling index value is calculated from bioimpedance values measured in the past. Then, a technique (for example, refer to Patent Document 2) is proposed in which an average value of past swelling index values is calculated and the degree of swelling is determined by comparing the average value with the current swelling index value.

  However, with these technologies, the reference value (average impedance value or average swelling index value) to be compared with the current impedance value or swelling index value is set without taking into account the daily fluctuation of the bioelectrical impedance value or swelling index value. Therefore, accurate determination cannot be expected.

Japanese Patent Laying-Open No. 2001-187036 (page 5, FIG. 10) JP 2001-198098 A (page 6, FIG. 2)

  The problem to be solved by the present invention is that the current state of health of the subject can be more appropriately determined by more effectively using the past measured values of bioelectrical impedance and body weight. To provide a state determination device and a health state determination program.

  In order to solve the above problems, a health condition determination apparatus according to this application includes a measuring means for measuring an impedance value or / and a body weight value of a subject, a storage means, and a reference value setting means. And a determination means and a display means, the storage means stores the measurement value measured by the measurement means together with the measurement date and time, and the reference value setting means is measured by the measurement means in the past and A reference value is set based on a plurality of past measurement values stored in the storage means, and the determination means includes the reference value and the current or current impedance value measured by the measurement means. The current health condition of the subject is determined by comparing the current value set based on the body weight value, and the display means displays the result of the determination by the determining means.

  In order to solve the above-mentioned problem, a health condition determination program according to this application is a health condition determination program for causing a computer as a calculation means to execute a calculation operation of a subject's current health condition. A reading step of reading a plurality of past measurement values stored in the storage means, a reference value setting step of setting a reference value based on the read measurement values, and the reference value and the current value. A determination step of determining the current health condition of the subject by comparing, wherein the plurality of past measurement values stored in the storage means are the impedance values of the subject's body or / and It is a measurement value measured in the past by the measurement means for measuring the body weight value, and is stored together with the date and time of measurement by the measurement means, and the current value is the current value measured by the measurement means, Ma Or it is a value set based on the impedance value or / and the weight value of the current day.

  Since the present invention is configured as described above, it is possible to more accurately determine the health condition in consideration of the lifestyle of the subject.

It is an external view when the health condition determination apparatus is not used. It is an external view of a health condition determination device showing a state when the main body is detached from the body weight measurement unit. It is a front view of a main-body part. It is a block diagram regarding the electrical signal processing of the health condition determination apparatus. It is a figure which shows typically the impedance structure in a human body. It is a flowchart for calculating | requiring the reference value of a bioelectrical impedance value. It is a flowchart for calculating | requiring the reference value of a bioelectrical impedance value. It is a flowchart which shows an example of the process for dehydration state determination. It is a figure which shows the display state of a display part. It is a figure which shows the display state of a display. It is a flowchart which shows an example of the process for obesity tendency determination. It is a figure which shows the display state of a display part. It is a figure which shows the display state of a display. It is a flowchart for calculating | requiring the reference value of the daily change rate of a bioelectrical impedance value. It is a flowchart which shows an example of the process for swelling determination. It is a figure which shows the display state of a display part. It is a figure which shows the display state of a display. It is a flowchart which shows an example of the process for weight loss tendency determination. It is a figure which shows the display state of a display part. It is a figure which shows the display state of a display. It is a figure which shows a measurement result when a subject's bioimpedance value is measured 4 times a day.

  In the health condition determination apparatus described in the above “Means for Solving the Problem”, the measurement unit can further measure an impedance value of the body of the subject, and the reference value setting unit includes: Based on the measurement values measured at approximately the same time as the current time out of the plurality of measurement values obtained by measuring the impedance values in the past and stored in the storage means by the measurement means in the past. The determination means determines the current health condition of the subject by comparing the reference value with the current value, and the current value is the current value measured by the measurement means. It may be a measured value of the impedance value. If comprised in this way, the influence of the daily fluctuation | variation of the bioelectrical impedance value by a subject's lifestyle etc. will be removed, and a health condition can be determined more correctly. In the health condition determination apparatus, the reference value setting means is measured at approximately the same time as the current time among a plurality of measurement values obtained by measuring the past impedance values stored in the storage means. Alternatively, the mode value, median value, or average value of a plurality of measurement values may be set as the reference value. In the health condition determination apparatus, the display unit may display the degree of dehydration or the degree of excessive drinking as a result of determination by the determination unit.

  Further, in the health condition determination apparatus described in the above “Means for Solving the Problems”, the measurement means can further measure an impedance value and a body weight value of the body of the subject, and the reference The value setting means is an impedance measured when a mode value among a plurality of measured values obtained by measuring a plurality of body weight values in the past and measured by the measuring means in the past and stored in the storage means is measured. A reference value is set based on the value, and the determination means determines the current health condition of the subject by comparing the reference value with the current value, and the current value is measured by the measurement means. It may be a measured value of the current impedance value. If comprised in this way, the influence of the fluctuation | variation of the body weight value by a test subject's lifestyle etc. will be removed, and a health condition can be determined more correctly. In the health condition determination apparatus, the display means may display the degree of dehydration or the degree of excessive drinking as a result of the determination by the determination means.

  Further, in the health condition determination apparatus described in the above “Means for Solving the Problems”, the measurement means can measure the body weight value of the subject, and the reference value setting means A reference value is determined based on a measurement value measured at approximately the same time as the current time among a plurality of measurement values measured by the measurement means and stored in the storage means. The determination means determines the current health condition of the subject by comparing the reference value with the current value, and the current value is the current weight value measured by the measurement means. It may be a measured value. If comprised in this way, the influence of the daily fluctuation | variation of the body weight value by a subject's lifestyle etc. will be removed, and a health condition can be determined more correctly. In the health condition determination apparatus, the reference value setting means includes a plurality of measurement values stored at the storage means and measured at substantially the same time as a current time among a plurality of measurement values obtained by measuring a plurality of body weight values in the past. Either the mode value, median value or average value of the measured values may be set as the reference value. In the health condition determination apparatus, the display means may display an obesity tendency degree or an overeating degree as a result of determination by the determination means.

Further, in the health condition determination apparatus described in the above “Means for Solving the Problem”, the measurement means can further measure an impedance value of the body of the subject, and the reference value setting means Is a daily impedance value in a plurality of past days in which a plurality of impedance values are measured within a day from a measurement value obtained by measuring a plurality of impedance values in the past stored in the storage means. And determining a reference value based on the daily change index value of the impedance value, and the determination means compares the reference value with the current value to thereby determine the current health of the subject. The state may be determined, and the current value may be set based on a daily change index value of the current day impedance value obtained by measuring the impedance value a plurality of times within the current day. In this way, by comparing the diurnal change of the impedance value on the current day with the past diurnal change, it is possible to more accurately determine the health state than the determination based on the measurement at one time point. it can. In the health condition determination apparatus, the daily change index value of the impedance value obtained by the reference value setting means is the daily change rate of the impedance value, and the daily change index value of the current impedance value is the current It may be the rate of change of the impedance value of the day within the day. In the health condition determination apparatus, the reference value setting means may set the mode value, median value, or average value of the daily change index values of the impedance values in a plurality of past days as a reference value. Good. In the health condition determination apparatus, the display means may display a swelling level or a fatigue level as a result of determination by the determination means.

  Further, in the health condition determination apparatus described in the above “Means for Solving the Problems”, the measurement means can further measure the weight value of the subject, and the reference value setting means The daily change index value of the body weight value in the past multiple days when the body weight value was measured multiple times within the day is obtained from the measurement value obtained by measuring the body weight value in the past stored in the means. A reference value is set based on the daily change index value of the weight value, and the determination means determines the current health condition of the subject by comparing the reference value with the current value, The current value may be set based on the daily change index value of the current day's weight value obtained by measuring the weight value a plurality of times within the current day. In this way, by comparing the daily change of the weight value on the current day with the past daily change, it is possible to more accurately determine the health state than the determination based on the measurement at one time point. it can. In the health condition determination apparatus, the daily change index value of the weight value obtained by the reference value setting means is the daily change rate of the weight value, and the daily change index value of the current weight value is the current You may make it be the daily change rate of the weight value of a day. Further, in the health condition determination apparatus, the reference value setting means may set the mode value, median value or average value of the daily change index values of the weight values in a plurality of past days as a reference value. Good. In the health condition determination apparatus, the display means may display the weight loss tendency as a result of the determination by the determination means.

  Moreover, in all the health condition determination apparatuses described above, the apparatus further includes input means for inputting body identification information of the subject, and the determination means includes the body identification information input by the input means. The current health condition of the subject may be determined based on the above. If comprised in this way, a patient's personal body specific information will be considered and a health condition can be determined more correctly. The “body-specific information” mentioned here is personal information for specifying the characteristics of the subject's body, such as “sex”, “age”, “height”, “weight”, etc. is there.

Further, in the health condition determination program described in the above “Means for Solving the Problems”, a plurality of past measurement values read in the reading step are measured as impedance values of the body of the subject. A measurement value of an impedance value measured in the past by a measuring means capable of performing the reference value setting step, wherein in the reference value setting step, a plurality of measurement values obtained by measuring a plurality of past impedance values read in the reading step A reference value may be set based on a measured value measured at substantially the same time as the current time, and the current value may be a measured value of the current impedance value measured by the measuring means. . If comprised in this way, the influence of the daily fluctuation | variation of the bioelectrical impedance value by a subject's lifestyle etc. will be removed, and a health condition can be determined more correctly. In the health condition determination program, the reference value setting step is measured at approximately the same time as the current time among a plurality of measurement values read in the reading step and measured by a plurality of past impedance values. Alternatively, the mode value, median value, or average value of a plurality of measurement values may be set as the reference value.

  Further, in the health condition determination program described in the above “Means for Solving the Problems”, the plurality of past measurement values read in the reading step are the body impedance value and the body weight of the subject. Impedance values and weight values measured in the past by a measuring means capable of measuring the values, and in the reference value setting step, by reading the weight values in the past multiple times read in the reading step A reference value is set based on the impedance value measured when the mode value of the plurality of measured values is measured, and the current value is a measured value of the current impedance value measured by the measuring means. It may be. If comprised in this way, the influence of the fluctuation | variation of the body weight value by a test subject's lifestyle etc. will be removed, and a health condition can be determined more correctly.

  Further, in the health condition determination program described in the above “Means for Solving the Problems”, the plurality of past measurement values read in the reading step can measure the weight value of the subject. It is a measured value of the weight value measured in the past by the measuring means, and in the reference value setting step, the current time of the plurality of measured values obtained by the past measurement of the weight value read in the reading step and the current time A reference value may be set based on a measurement value measured at substantially the same time, and the current value may be a measurement value of the current weight value measured by the measurement means. If comprised in this way, the influence of the daily fluctuation | variation of the body weight value by a subject's lifestyle etc. will be removed, and a health condition can be determined more correctly. In the health condition determination program, in the reference value setting step, a plurality of measurement values read at the reading step and measured at approximately the same time as the current time among a plurality of measurement values obtained by past measurement of the body weight value. Either the mode value, median value or average value of the measured values may be set as the reference value.

  Further, in the health condition determination program described in the above “Means for Solving the Problems”, a plurality of past measurement values read in the reading step are measured as impedance values of the body of the subject. A measurement value of an impedance value measured in the past by a measurement means capable of performing, in the reference value setting step, from a measurement value obtained by measuring a plurality of past impedance values read in the reading step, Obtaining the daily change index value of the impedance value in the past multiple days when the impedance value was measured multiple times within a day, setting a reference value based on the daily change index value of the impedance value, The current value is based on a daily change index value of the impedance value of the current day, which is obtained by measuring the impedance value a plurality of times within the current day by the measuring means. May be is a value that is set are. In this way, by comparing the diurnal change of the impedance value on the current day with the past diurnal change, it is possible to more accurately determine the health state than the determination based on the measurement at one time point. it can. In the health condition determination program, in the reference value setting step, a daily change rate of the impedance value is obtained as a daily change index value of the impedance value, and a value obtained as a daily change index value of the current impedance value May be the intraday change rate of the impedance value of the current day. In the health condition determination program, in the reference value setting step, either the mode value, median value, or average value of the daily change index values of the impedance values in a plurality of past days is set as the reference value. Also good.

Further, in the health condition determination program described in the above “Means for Solving the Problems”, the plurality of past measurement values read in the reading step can measure the weight value of the subject. It is a measured value of the weight value measured in the past by the measuring means, and in the reference value setting step, a plurality of values measured in the past by reading the weight value in the past are read out in the reading step. The daily change index value of the weight value in the past multiple days when the weight value measurement was performed is obtained, a reference value is set based on the daily change index value of the weight value, and the current value is It may be a value set based on the daily change index value of the current day's weight value obtained by measuring the weight value a plurality of times within the current day by the measuring means. In this way, by comparing the daily change of the weight value on the current day with the past daily change, it is possible to more accurately determine the health state than the determination based on the measurement at one time point. it can. In the health condition determination program, in the reference value setting step, a daily change rate of the body weight value is obtained as a daily change index value of the body weight value, and a value obtained as a daily change index value of the current weight value May be the daily change rate of the weight value of the current day. In the health condition determination program, in the reference value setting step, the mode value, median value, or average value of the daily change index values of the weight values in the past plural days is set as the reference value. Also good.

  Moreover, in all the health condition determination programs described above, further comprising a body identification information reading step for reading the body identification information input to the input means for inputting the body identification information of the subject, In the determination step, the current health condition of the subject may be determined based on the body specifying information. In this way, the health condition can be determined more accurately in consideration of the personal body identification information of the subject. The “body-specific information” mentioned here is personal information for specifying the characteristics of the subject's body, such as “sex”, “age”, “height”, “weight”, etc. is there.

  Hereinafter, a health condition determination apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external view of the health condition determination device 1 when not in use. The health condition determination apparatus mainly includes a main body unit 2 and a weight measurement unit 4. The body weight measuring unit 4 is formed with a main body storage part for storing the main body part 2, and a detachable part 2 a of the main body part 2 can be fitted therein. When the detachable part 2a of the main body 2 is fitted into the main body storage part of the weight measuring part 4, the health condition determination device 1 is in a state as shown in FIG. The main body 2 can be freely detached from the weight measuring unit 4.

  FIG. 2 is an external view of the health condition determination apparatus 1 showing a state when the main body unit 2 is detached from the weight measurement unit 4. When the health condition determination apparatus 1 is used, the main body 2 is detached from the body weight measurement unit 4 in this way, and the main body 2 is held with both hands.

  FIG. 3 is a front view of the main body 2.

  FIG. 4 is a block diagram relating to electrical signal processing of the health condition determination apparatus 1.

  A schematic configuration of the health condition determination apparatus 1 will be described with reference to FIGS. 1, 2, 3, and 4.

  As described above, the health condition determination apparatus 1 mainly includes the main body unit 2 and the weight measurement unit 4. The main body 2 and the weight measuring unit 4 are connected by a signal cable 3. The signal cable 3 is a multi-core cable. Transmission / reception of electric signals and transmission / reception of current required between the members of the main body 2 and the members of the weight measuring unit 4 are all performed via the signal cable 3.

  As shown in FIG. 4, the health condition determination apparatus 1 is electrically mainly composed of electrodes E1 to E8, an impedance measurement circuit 8, an operation unit 6, a display unit 5, a load cell 10, a time measuring unit 14, an I / I An O port 12 and an arithmetic processing unit 13 are included. The arithmetic processing unit 13 mainly includes a central processing unit 15 configured by a CPU and a storage unit 16 configured by a semiconductor memory.

  The electrodes E5, E6, E7, E8 and the load cell 10 are members provided in the weight measuring unit 4. The electrodes E 1, E 2, E 3, E 4, the impedance measurement circuit 8, the operation unit 6, the display unit 5, the time measuring means 14, the I / O port 12, and the arithmetic processing unit 13 are members provided in the main body unit 2. A signal cable 3 connects the electrodes E5, E6, E7, E8 and the impedance measurement circuit 8, and the load cell 10 and the I / O port 12. In addition, transmission of electrical signals and data between the impedance measurement circuit 8, the operation unit 6, the display unit 5, the load cell 10, the timing unit 14, and the arithmetic processing unit 13 are all performed via the I / O port 12. . Although not shown, various signals and data are digitized and transmitted by an A / D converter (not shown) as necessary. This is because the arithmetic processing in the arithmetic processing unit 13 is digital processing.

  The impedance measurement circuit 8 includes an electrode changeover switch unit, a current source, a voltage measurement unit, and the like. The current source of the impedance measurement circuit 8 is connected to any two of the electrodes E1, E4, E5, and E8 via the electrode changeover switch unit.

  For example, a current path with the left hand and left foot or the right hand and right foot of the human body as ends can be formed via the electrodes E1 and E5 or the electrodes E4 and E8, respectively.

  This current source generates an alternating current. The current source can generate an alternating current having a frequency selected from a plurality of predetermined frequencies.

  The voltage measurement unit of the impedance measurement circuit 8 is connected to any two of the four electrodes E2, E3, E6, and E7 via the electrode changeover switch unit. By sequentially switching the electrode to which the current source is connected and the electrode to which the voltage measuring unit is connected by the electrode changeover switch unit, it is possible to detect a potential difference (voltage) between various parts of the body. The voltage data detected by the voltage measuring unit is transmitted to the arithmetic processing unit 13 via the I / O port.

  Since the arithmetic processing unit 13 knows in advance the current value generated by the current source, the impedance can be calculated by obtaining voltage data from the voltage measuring unit. The calculation for impedance calculation is performed by the central processing unit 15 of the calculation processing unit 13.

  As will be understood with reference to FIGS. 2 and 3 again, the main body 2 has a relatively thin shape.

The main body 2 is portable. That is, the subject (user) can hold the main body 2 by hand. If it demonstrates in detail, the left protrusion part 7a and the right protrusion part 7b will be formed in the main-body part 2 at the right-and-left end. Both projecting portions 7a and 7b are plate-like portions projecting in the left-right direction. The specific subject can hold the main body 2 by holding the left protruding portion 7a with the left hand and the right protruding portion 7b with the right hand. A first electrode E1 is disposed on the upper end surface of the left protruding portion 7a. A second electrode E2 is disposed on the lower end surface of the left protruding portion 7a. A fourth electrode E4 is disposed on the upper end surface of the right protruding portion 7b. A third electrode E3 is disposed on the lower end surface of the right protruding portion 7b.

  The subject grips both protruding portions 7a and 7b of the main body 2 as follows. That is, the subject holds the left protruding portion 7a with the left hand so that the index finger of the left hand contacts the electrode E1 and the thumb of the left hand contacts the electrode E2. Further, the right projecting portion 7b is grasped with the right hand so that the index finger of the right hand contacts the electrode E4 and the thumb of the right hand contacts the electrode E3.

Referring to FIG. 2, the upper surface of the body weight measuring unit 4 is configured as a measurement surface 9, and electrodes E <b> 5, E <b> 6, E <b> 7, E <b> 8 are disposed there (measurement surface 9).

  As described above, the weight measuring unit 4 has the load cell 10 built therein. The load cell 10 constitutes a weight value measuring means for measuring the weight of the subject. Therefore, the subject gets on the measurement surface 9 of the weight measurement unit 4 in order to measure his / her weight. When the subject gets on the measurement surface 9, the weight value of the subject is detected by the load cell 10. The body weight data of the subject detected by the load cell 10 is amplified by an amplifier (not shown) in order to maintain the detection accuracy, A / D converted, and then converted into a digital signal via the I / O port 12. The data is input to the arithmetic processing unit 13 and stored in the storage unit 16.

  When the subject gets on the measurement surface 9, the soles of the subject's feet come into contact with the electrodes E5, E6, E7, and E8. More specifically, when the subject gets on the weight measuring unit 4, the front part of the arch behind the left foot of the subject (this part is hereinafter also referred to as “left foot thumb part”) is connected to the electrode E5. Contact. Further, the heel portion on the back of the left foot contacts the electrode E6. In addition, a forward portion (hereinafter, this portion is also referred to as a “right foot thumb portion”) of the right foot sole comes into contact with the electrode E8. Further, the heel part of the back of the right foot is in contact with the electrode E7.

  The electrodes E1 to E8 disposed on the main body 2 and the body weight measuring unit 4 together with the impedance measuring circuit 8 to be described later, impedance for measuring the biological impedance value of each part of the body of the subject. Configure the measuring means.

  Of these electrodes E1 to E8, the electrodes E1, E4, E5, and E8 are current path forming electrodes for forming a current path in the body of the subject.

  On the other hand, the electrodes E2, E3, E6, E7 are voltage measuring electrodes for measuring the voltage between the two electrodes according to the voltage distribution generated in the body of the subject.

  When a weak alternating current having a predetermined frequency is passed between two of the four current path forming electrodes E1, E4, E5, and E8, a voltage distribution is generated in the body of the subject by this current. In such a state, the voltage between two of the four voltage measuring electrodes E2, E3, E6, E7 is measured. The bioimpedance value can be calculated from the current value of the current flowing through the subject's body and the measured voltage value. The calculation of the bioelectrical impedance value is performed by the arithmetic processing unit 13. Of course, the electrodes E 1, E 2, E 3, E 4, E 5, E 6, E 7, E 8 are electrically connected to the impedance measuring circuit 8.

FIG. 5 is a diagram schematically showing the impedance configuration in the human body. A measurement example of the bioimpedance value of each part of the body of the subject on the electrodes E1 to E8 will be briefly described below with reference to this figure.
The impedance Z1 in the figure corresponds to the bioelectrical impedance of the left arm,
Impedance Z2 corresponds to the bioimpedance of the right arm,
Impedance Z3 corresponds to the biological impedance of the trunk,
Impedance Z4 corresponds to the bioelectrical impedance of the left leg,
The impedance Z5 corresponds to the bioelectrical impedance of the right leg.

  An example of how the bioimpedance value of a certain part of the subject is measured while referring to this figure. For example, when a current is passed between the electrode E1 and the electrode E5, a current path with the left finger and the back of the left foot as ends is formed in the human body. The current path at this time is formed by impedances Z1, Z3 and Z4 in the figure. When such a current path is formed, if the voltage between the electrode E3 and the electrode E7 is measured, the impedance Z3, that is, the bioimpedance value of the trunk can be obtained.

  Further, for example, when a current is passed between the electrode E1 and the electrode E5 and the voltage between the electrode E2 and the electrode E3 is measured, the impedance Z1, that is, the bioimpedance value of the left arm can be obtained.

  As can be understood from these examples, by selecting the current path forming electrode and the voltage measuring electrode, the left arm bioimpedance value, the right arm bioimpedance value, the trunk bioimpedance value, the left leg bioimpedance value, The bioelectrical impedance value and the bioelectrical impedance value of the right leg can be measured respectively.

  In this way, the bioelectrical impedance value can be measured for each part of the left arm, right arm, trunk, left leg, and right leg.

  Further, the ratio of the extracellular fluid and the intracellular fluid in the body of the subject can also be obtained by measuring bioimpedance values using alternating currents of various frequencies.

  The measurement example of the bioimpedance value of each part of the body of the subject using the electrodes E1 to E8 has been described above.

  Referring to FIG. 3, the display unit 5 and the operation unit 6 appear on the outer surface of the main body unit 2. The display unit 5 is disposed on the left side of the front surface of the main body unit 2, and the operation unit 6 is disposed on the right side of the front surface of the main body unit 2.

  First, the operation unit 6 will be described with reference to FIG.

  The operation unit 6 includes a power ON / OFF key 6a, various mode switching keys 6b, various personal data setting screen switching keys 6c, the personal data etc. and measurement data registration key 6d, and a subject's registration key. Determination key 6e for determining the health condition, numeric key 6f for inputting the personal data, measurement key 6g for starting measurement of the body weight of the subject and the bioelectrical impedance value of each part of the subject, etc. It is included.

  The above-mentioned various personal data are data relating to the subject's sex, age, height, weight, etc., and correspond to “body identification information”.

  The subject can input various data such as his / her gender, age, height and weight into the health condition determination apparatus 1 using the operation unit 6.

  All operations of the health condition determination apparatus 1 are performed via the operation unit 6. For example, when the power key 6a is operated, the health condition determination apparatus 1 enters a standby state, and then one measurement mode can be selected from a plurality of measurement modes by the mode switching key 6b. In addition, when the subject operates the measurement key 6g while being placed on the body weight measuring unit 4, the body weight value of the subject is measured, and it is determined whether or not the measured value is stable. If determined to be stable, the measured value at that time is stored in the storage unit 16 as the weight value of the subject.

  Since the body weight value of the subject can be measured by the body weight value measuring means (load cell 10) of the body weight measuring unit 4, it is not necessary to input the body weight data by using the registration key 6d or the numeric keypad 6f. However, the health condition determination apparatus 1 is configured so that weight data can be input using the registration key 6d or the numeric keypad 6f when the weight of the subject is known.

  The operation unit 6 has been briefly described above.

  Next, the display unit 5 will be described.

  The display unit 5 displays the subject's body identification information input from the operation unit 6, that is, the subject's height, weight, age, sex, and the like.

  The display unit 5 also displays the weight value of the subject detected by the load cell 10 of the weight measurement unit 4.

  The display unit 5 also displays calculation results, determination results, and the like by the calculation processing unit 13. Specifically, the bioimpedance value of each part of the body of the subject calculated by the arithmetic processing unit 13, the daily change rate of the bioelectrical impedance value, the daily change rate of the body weight value, the health condition index (health condition determination result), etc. Is displayed.

  The display unit 5 can also display past weight measurements and past bioimpedance measurements. These past measurement values are stored in the storage unit 16 of the arithmetic processing unit 13. Therefore, the arithmetic processing unit 13 can read these data from the storage unit 16 and display them on the display unit 5.

  The display unit 5 can display a health condition index. The health condition index is a health condition determination result calculated by the arithmetic processing unit 13 by comparing the current weight value or the current bioimpedance value with a reference value. For example, the degree of excessive eating, the degree of excessive drinking, the degree of obesity, the tendency to lose weight, the degree of dehydration, the swelling, the degree of fatigue, etc. are displayed on the display unit 5 as the health condition index. The reference value is calculated by the arithmetic processing unit 13 based on the weight value and bioelectrical impedance value measured in the past, and stored in the storage unit 16. Details of the reference value will be described later.

  Next, the arithmetic processing unit 13 (see FIG. 4) will be described.

  Calculation processing of various data in the health condition determination apparatus 1 is performed by the calculation processing unit 13. The arithmetic processing unit 13 includes a central processing unit 15 and a storage unit 16.

  The central processing unit 15 performs calculation and determination processing based on data stored in the storage unit 16 and various program routines. For example, the central processing unit 15 compares the measured current body weight value or bioelectrical impedance value with a reference value, thereby obtaining various health condition indices (overeating degree, excessive drinking degree, obesity tendency degree, weight loss tendency degree, Dehydration, swelling, fatigue, etc.).

  The central processing unit 15 also calculates a reference value. The reference value is calculated based on the weight value measured in the past and / or the bioimpedance value measured in the past.

  In the storage unit 16, each of the body specifying information inputted through the operation of the input keys 6a to 6g of the operation unit 6 and each part of the body of the subject measured through the electrodes E1 to E8 are stored. A bioimpedance value, that is, a bioimpedance value Z1 of the left arm, a bioimpedance value Z2 of the right arm, a bioimpedance value Z3 of the trunk, a bioimpedance value Z4 of the left leg, a bioimpedance value Z5 of the right leg, and the like can be stored.

Furthermore, the measured weight value and bioelectrical impedance value can be stored together with time information (information related to the date and time of measurement) obtained from the time measuring means 14. In addition, the various health conditions (degree of overeating, degree of overdose, obesity tendency, weight loss tendency, dehydration, swelling, fatigue, etc.)
Each reference value required for the determination can be stored.

  Further, the storage unit 16 includes a calculation formula for calculating a bioelectrical impedance value, a calculation formula for calculating various reference values, an operation routine program corresponding to each operation mode of the health condition determination device 1, and various determinations. An operation routine program or the like is stored.

  The main operation modes of the health condition determination apparatus 1 are an initial setting mode, a measurement mode, a registration mode, a determination mode, and the like. It can be determined by operating the various mode switching keys 6b in which of these operation modes the health condition determination apparatus 1 is operated.

  The initial setting mode is a mode for setting and changing the current time.

  The measurement mode is an operation mode for measuring the body weight value of the subject and the bioelectrical impedance value of each part of the body.

  The registration mode is a mode for registering body specifying information (height, weight, age, sex, etc.) and various measurement data in the storage unit 16.

  The determination mode is an operation mode for determining the health condition of the subject by comparing the current value related to the bioelectrical impedance value and the weight value of the subject with the reference value obtained from the past measurement value.

  In the health condition determination apparatus 1, when the power key 6a is operated, the power is turned off and the power is turned on. Then, the health condition determination apparatus 1 enters a standby state. When the health condition determination apparatus 1 is in the standby state, the operation mode can be selected by operating the mode switching key 6b.

  The health condition determination device 1 is not initially set in a new state. Therefore, when a new health condition determination device 1 is purchased, first, it is necessary to perform initial setting. Initial setting can be performed in the initial setting mode.

  When the health condition determination apparatus 1 is set to the initial setting mode, the year, month, day, and time data at that time are sequentially input using the numeric keypad 6f or the setting screen switching key 6c of the operation unit 6. can do. These input data are the basis of the date and time information output by the time measuring means.

  When the health condition determination device 1 is initially set, the health value determination device 1 is set to the measurement mode, thereby measuring the body weight value of the subject and the biological impedance value for each part of the body. be able to. Further, these measured values can be stored in the storage unit 16 together with the date and time information obtained from the time measuring means 14.

  In addition, as described above, in order to measure the weight value of the subject, the subject needs to get on the weight measuring unit 4.

Further, in order to measure the bioelectrical impedance value of the subject, the subject needs to ride on the weight measuring unit 4 and hold the main body unit 2 with both hands. In order to accurately measure the bioelectrical impedance value, the state of the foot placed on the measurement surface 9 of the weight measuring unit 4 must be as follows. That is, the left foot mother and child hill part is in contact with the electrode E5 (see FIG. 2), the heel part of the back of the left foot is in contact with the electrode E6, the right foot mother and child hill part is in contact with the electrode E8, The heel part of the back is in contact with the electrode E7, the left index finger is in contact with the electrode E1, the left thumb is in contact with the electrode E2, the right index finger is in contact with the electrode E4, and the right hand Must be in contact with the electrode E3.

  When the measurement key 6g (see FIG. 3) is turned on while the electrodes are properly in contact as described above, measurement of the bioelectrical impedance value of each part of the body is started.

  During this measurement, if it is determined that the voltage detected from the voltage electrode is not yet stable, “measuring” is displayed on the display unit. When it is determined that the voltage detected from the voltage electrode is stable, the bioimpedance value of each part of the body is calculated based on the measured voltage at this time. This calculation is performed by the arithmetic processing unit 13.

  Next, the registration mode will be described.

  When the health condition determination apparatus 1 is set to the registration mode, the body identification information can be registered in the storage unit 16. More specifically, when the setting screen switching key 6c is operated in a state in which the health state determination device 1 is set to the registration mode, the healthy state determination device 1 has a height input mode, an age input mode, and a sex selection mode. And so on. In each of these input modes (selection modes), when data is input from the numeric keypad 6f, this data is registered (stored) in the storage unit 16.

  The health condition determination apparatus 1 sets a reference value based on a weight value measured in the past or a bioimpedance value measured in the past, and compares the reference value with the current measurement value to thereby determine the subject's Various health conditions (overeating degree, excessive drinking degree, obesity tendency degree, weight loss tendency degree, dehydration degree, swelling degree, fatigue degree, etc.) are determined.

  When the health condition determination device 1 is in a new state, the past measurement values of the body weight value and the bioelectrical impedance value are not stored in the storage unit 16. However, when the subject's body weight value measurement and bioimpedance value measurement are performed a plurality of times by the health condition determination apparatus 1, the measurement values obtained by these measurements are stored as past measurement values together with the measurement date / time data in the storage unit 16. Will be accumulated. Then, it becomes possible to set a reference value, and to determine the various health conditions (excessive degree of eating, degree of excessive drinking, degree of obesity, degree of weight loss, degree of dehydration, degree of swelling, degree of fatigue, etc.) of the subject. become able to.

  Next, on the assumption that the body weight value and the bioelectrical impedance value have been measured a plurality of times in the past by the health condition determination device 1, and these measured values are stored in the storage unit together with the measurement date data. How the various health conditions are specifically determined will be described. These determinations are made by putting the health condition determination device 1 in the determination mode.

  In addition, it can be selected by operating the operation part 6 which of the various health condition determination items of the subject is determined.

  First, as an example, it will be described with reference to FIGS. 6, 7, 8, 9, and 10 how to determine whether or not a dehydration state is one of the health condition determination items of a subject. .

  As described above, in order to determine the current state of health of the subject, it is necessary to set a reference value based on a weight value or a bioelectrical impedance value measured in the past.

FIG. 6 is a flowchart for obtaining a reference value of bioimpedance values based on bioimpedance values measured in the past. The flowchart of FIG. 6 shows a process of extracting past measurement values measured at the same time as the current measurement measurement time and setting a reference value from these extracted measurement values. Even if measurements were made on a plurality of past days, it is rare that measurements are taken at the same time each time. Usually, the measurement time varies depending on the measurement date. As described above, the bioelectrical impedance value changes with time even within a day. Therefore, instead of simply averaging the past measurement values and setting the reference value without considering the measurement time, the reference value was set using only the measurement values obtained at the same time as the current measurement time. Therefore, a more appropriate determination can be made. For example, if the current time (measurement time of the current measurement) is 3:00 pm, it will be at 3:00 pm or a time close to 3:00 pm from a plurality of measurements obtained from measurements on the past multiple days. The reference value is set using only the measured value obtained by the measurement. The method for setting the reference value is not particularly limited. For example, the mode value may be set as the reference value, the median value may be set as the reference value, or the average value may be set as the reference value.

  A program for executing the steps shown in this flowchart is stored in the storage unit 16, and the central processing unit 15 executes this program.

  Explaining in accordance with the flowchart of FIG. 6, first, the current time at which a dehydration abnormality is to be determined is read from the time measuring means 14 (step 1).

  Next, only the measurement value obtained by the measurement at the same time as the measurement time of the current measurement is extracted from the measurement values of the bioimpedance value by the past measurement stored in the storage unit 16 (step) 2).

  Next, the subject is asked whether or not the mode value of these extracted measurement values is used as a reference value (step 3). The subject operates the operation unit 6 to determine whether or not to set the mode value as the reference value.

  When the subject determines that the mode value is the reference value, the mode value of the past measurement values extracted in step 2 is calculated as the reference value (step 4).

  If the subject determines in step 3 that the mode is not set as the reference value, then the subject is asked whether or not the median value of the measurement values extracted in step 2 is the reference value. (Step 5). The subject operates the operation unit 6 to determine whether or not the median is set as the reference value.

  When the subject decides to use the median value as the reference value, the median value of the extracted past measurement values is calculated as the reference value (step 6).

  If it is determined in step 5 that the subject does not use the median value as the reference value, the subject is then asked whether or not the average value of the measurement values extracted in step 2 is used as the reference value ( Step 7). The subject determines whether or not to use the average value as a reference value by operating the operation unit.

  When the subject decides to use the average value as the reference value, the average value of the extracted past measurement values is calculated as the reference value (step 8).

  Then, the reference value (reference value of the bioelectrical impedance value) calculated in step 4, step 6 or step 8 is stored in the storage unit 16 (step 9).

  If it is determined in step 7 that the subject does not use the average value as the reference value, the current time is read again (step 1).

In order to calculate the reference value, the past measurement value is used, but it should be possible to select how long the past measurement value that is the basis of the reference value is to be extracted. Is desirable. For example, any period of the past 1 to 12 weeks (ie 1 week,
2 weeks, 3 weeks, 4 weeks, 5 weeks, 6 weeks, 7 weeks, 8 weeks, 9 weeks, 10 weeks, 11 weeks, and 12 weeks. Alternatively, it may be possible to select any period from the past 4 to 6 months (that is, any one period from 4 months, 5 months and 6 months) on a monthly basis. And any period from the past 6 months to 24 months (ie, 6 months, 9 months, 12 months, 15 months, 18 months, 21 months and 24 months, in units of 3 months) One period) may be selected.

  As described above, the step of setting the reference value of the bioelectrical impedance value is shown in FIG. 6, but the reference value of the bioelectrical impedance value may be set by the step shown in the flowchart of FIG.

  In the process shown in the flowchart of FIG. 7, a reference value for the bioelectrical impedance value is set based on the weight value and the bioelectrical impedance value measured in the past. More specifically, first, a mode value of weight values measured in the past is obtained. Next, the reference value of the bioimpedance value is set from the measured value of the bioimpedance value when the mode value is measured.

  Thereby, the bioelectrical impedance value when there is virtually no weight change can be used as the reference value. That is, it is possible to remove the influence of weight change and perform an appropriate health state determination.

  For example, it is assumed that the body weight value and the bioelectrical impedance value are measured by the health condition determination device 1 over the past nine consecutive days. The following table (Table 3) is a table showing the measurement results.

  “IMP” in Table 3 is a measured bioimpedance value. The bioimpedance values (unit: ohms) and body weight data shown in Table 3 are all stored in the storage unit 16 together with the measurement date and time. Note that the measured bioelectrical impedance value and weight value may be stored in the storage unit 16 after being rounded by rounding or the like so that the mode value can be easily selected later.

As can be understood from Table 3, the mode value of the weight values obtained by the nine weight measurements is 70 kg. The days when the measured weight value is 70 kg are the first day, the third day, the fifth day, the sixth day, and the eighth day. The measurement value of the bioimpedance value on the first day is 675 ohms, the measurement value of the bioimpedance value on the third day is 685 ohms, the measurement value of the bioimpedance value on the fifth day is 660 ohms, 6 days The measured value of the bioimpedance value at the eye is 680 ohms, and the measured value of the bioimpedance value at the eighth day is 685 ohms.

  In such a case, according to the process shown in the flowchart of FIG. 7, the first day of 675 ohms, the third day of 685 ohms, the fifth day of 660 ohms, the sixth day of 680 ohms, and the eighth day Based on the 685 ohms of the eye, a reference value for the bioimpedance value is set.

  Describing according to the flowchart of FIG. 7, first, the measurement value of the body weight value and the measurement value of the bioelectrical impedance value from the past measurement are read from the storage unit 16 (step 1).

  Next, the mode value is obtained from the measured weight value read in step 1 (step 2).

  Next, when the weight value of the mode is measured, only the bioimpedance value measured at the same time is extracted (step 3).

  Next, the subject is asked whether or not the mode value of the measured value of the bioimpedance value extracted in step 3 is used as the reference value of the bioimpedance value (step 4). The subject operates the operation unit 6 to determine whether or not to use the mode value as a reference value.

  When the subject determines that the mode value is set as the reference value, the mode value of the measured value of the bioelectrical impedance value extracted in step 3 is calculated as the reference value (step 5). In the measurement example shown in Table 3, the mode value is 685 ohms.

  In step 4, when the subject determines that the mode value of the extracted bioelectrical impedance value is not used as the reference value, next, the median value of the measured bioimpedance value extracted in step 3 is determined as the bioelectrical impedance. The subject is asked whether or not the reference value is to be used (step 6). The subject operates the operation unit 6 to determine whether or not to use this median value as a reference value.

  When the subject decides to use the median value as the reference value, the median value of the measured values of the bioelectrical impedance value extracted in step 3 is calculated as the reference value (step 7). In the measurement example shown in Table 3, the median is 680 ohms.

  If the subject determines in step 6 that the median value of the extracted bioimpedance values is not the reference value, then the average value of the measured values of the bioimpedance values extracted in step 3 is determined as the bioimpedance value. The subject is asked whether or not the reference value is used (step 8). The subject operates the operation unit 6 to determine whether or not to use this average value as a reference value.

  When the subject decides to use the average value as the reference value, the average value of the measured values of the bioelectrical impedance value extracted in step 3 is calculated as the reference value (step 9). In the measurement examples shown in Table 3, the average value is 677 ohms.

  Then, the reference value calculated in step 5, step 7 or step 9 is stored in the storage unit 16 (step 10).

  In Step 8, when the subject determines that the average value is not set as the reference value, the measurement is again performed by reading the measured value of the body weight value and the measured value of the bioelectrical impedance value from the storage unit again from the storage unit ( Step 1).

  As described above, the step of setting the reference value of the bioelectrical impedance value is shown in FIG.

  When the reference value of the bioelectrical impedance value is set by the steps shown in the flowcharts of FIGS. 6 and 7, next, whether or not the subject is currently dehydrated using this reference value. Determine.

  FIG. 8 is a flowchart showing an example of a process for this determination.

  As a premise that this flowchart is executed, it is assumed that the current bioimpedance value is measured and the measured value is stored in the storage unit 16.

  The process of the flowchart shown in FIG. 8 is started by pressing the determination key 6e after selecting the dehydration abnormality determination mode with the mode switching key 6b.

  If it demonstrates according to the flowchart of FIG. 8, first, the bioelectrical impedance value in the present time memorize | stored in the memory | storage part 16 will be read from the memory | storage part 16 (step 1).

  Next, the reference value of the bioelectrical impedance value stored in the storage unit 16 is read from the storage unit (step 2).

  Next, the measured current bioimpedance value (Z) is compared with the reference value (Zs) (step 3).

  If the current bioimpedance value (Z) is smaller than or equal to the reference value (Zs), it is determined that the subject has no dehydration abnormality, and “normal” is displayed on the display unit. (Step 4).

  On the other hand, if the current bioimpedance value (Z) is larger than the reference value (Zs), it is determined that the subject is dehydrated, and “physical attention” is displayed on the display unit (step 5). .

  FIG. 9 is a diagram showing a display state of the display unit 5 corresponding to step 5 in FIG. The “measured value” in FIG. 9 is a measured current bioimpedance value (Z). The display state of FIG. 9 will be described in more detail. For example, when determining the dehydration state based on the impedance measurement values of both arms, the impedance values of both arms are currently measured. The measurement result is 745 ohms, and 695 ohms is obtained as the reference value for the impedance values of both arms. Then, the current measured value is larger than the reference value. Therefore, it is determined to be in a dehydrated state, and “physical attention” is displayed as the determination result. In particular, when measurement is performed using alternating currents of a plurality of frequencies, it is easy to grasp the moisture fluctuation inside and outside the cell, and thus more specific display is possible. For example, “Changing hangover” may be displayed depending on the measurement result.

  Note that the determination result may be displayed in more detail than the display as shown in FIG.

  FIG. 10 is a diagram illustrating a display state of the display 5 when the dehydration abnormality is determined in more detail. In the display of FIG. 10, the state of abnormal dehydration is classified into four stages. FIG. 10 shows the determination result that the degree of dehydration is “slightly high”.

  If the ranks of the determination results are classified in more detail in this way, the health condition of the subject can be determined in more detail, and more appropriate health management can be performed.

  As described above, how to determine the presence or absence of the dehydration state, which is one of the health states of the subject, has been described with reference to FIGS.

  Since the dehydrated state and the overdrinking state (overdrinking state) are closely related, the degree of excessive drinking is determined according to a flowchart similar to the flowchart of FIG. 8 or a flowchart similar to the flowchart of FIG. It may be.

  Next, as another example, how the presence or absence of obesity tendency, which is one of the health condition determination items of the subject, is determined will be described with reference to FIGS.

  As described above, in order to determine the health state of a subject, it is necessary to set a reference value based on a weight value or a bioelectrical impedance value measured in the past. In the determination of the presence or absence of obesity here, a reference value is set based on a weight value measured in the past.

  The process for setting the reference value of the bioelectrical impedance value based on the bioelectrical impedance value measured in the past has been described with reference to the flowchart of FIG. The reference value of the weight value can be set by the same process as the process shown in the flowchart of FIG. In order to set the reference value of the body weight value, of course, the measurement target item must be the body weight value, not the biological impedance value.

  More specifically, the time is first read from the time measuring means 14 in order to set the reference value of the weight value. Next, the measurement value of the body weight value by the past measurement is read from the storage unit 16 together with the measurement time at which the measurement was performed, and the measurement value obtained by the measurement at approximately the same time as the current time is extracted. Next, the subject is made to select which of the mode value, median value, and average value of the extracted measurement values is the reference value. Then, the value selected by the subject is calculated as the reference value, and the calculation result is stored in the storage unit 16 as the reference value.

  Thus, when the reference value of the weight value is set by the same process as the flowchart shown in FIG. 6, next, whether or not the subject is currently in an obese tendency state using this reference value. Determine whether.

  FIG. 11 is a flowchart showing an example of a process for this determination.

  As a premise that this flowchart is executed, it is assumed that the current weight value is measured and the measured value is stored in the storage unit 16.

  The process of the flowchart shown in FIG. 11 is started by pressing the determination key 6e after selecting the obesity tendency determination mode with the mode switching key 6b.

  If it demonstrates according to the flowchart of FIG. 11, the weight value (W) in the present time memorize | stored in the memory | storage part 16 will be read from the memory | storage part 16 first (step 1).

  Next, the weight value reference value stored (set) in the storage unit 16 is read from the storage unit 16 (step 2).

  Next, the measured current weight value (W) is compared with the reference value (Ws) (step 3).

  If the current weight value (W) is smaller than or equal to the reference value (Ws), it is determined that the subject does not have an obesity tendency, and “normal” is displayed on the display unit 5. (Step 4).

  On the other hand, if the current weight value (W) is larger than the reference value (Ws), it is determined that the subject has an obesity tendency and “overeating” is displayed on the display unit 5 (step 5). .

  FIG. 12 is a diagram showing a display state of the display unit 5 corresponding to step 5 of FIG. The “measured value” in FIG. 12 is the current weight value (W) measured. The display state of FIG. 12 will be described in more detail. When the reference value is 70 kg, the current measurement value is 72 kg, and thus the current measurement value is larger than the reference value. Therefore, “overeat” is displayed as the determination result.

  The determination result may be displayed in more detail than the display as shown in FIG.

  FIG. 13 is a diagram illustrating a display state of the display 5 when the obesity tendency is determined in more detail. In the display of FIG. 13, the degree of obesity tendency is classified into four stages. FIG. 13 shows the determination result that the obesity tendency is “somewhat high”. If the rank of the determination result is classified in more detail in this way, the species health condition of the subject can be determined in more detail, and more appropriate health management can be performed.

  As described above, how the obesity tendency degree, which is one of the health conditions of the subject, is determined has been described with reference to FIGS.

  Next, as another example, how to determine the presence or absence of swelling, which is one of the health condition determination items of the subject, will be described with reference to FIGS. .

  As described above, in order to determine the health state of a subject, it is necessary to set a reference value based on a weight value or a bioelectrical impedance value measured in the past.

  FIG. 14 is a flowchart for obtaining a reference value of the daily change rate of the bioelectrical impedance value based on the bioelectrical impedance value measured in the past. The flowchart of FIG. 14 shows a step of setting a reference value for the daily change rate from the weight value and bioelectrical impedance value measured on the past measurement date. The daily change rate is the change rate of the measured value at a later time relative to the measured value at an earlier time of the day. For example, it is assumed that weight values and bioimpedance values are measured in the morning (or when getting up) and in the evening (or before going to bed) on a plurality of past days. If it does so, it can be calculated | required by what ratio the weight value and the bio-impedance value changed from morning (or at the time of waking up) to the evening (or before bedtime) for every past measurement day. When swelling occurs in the subject, the amount of water in the body tends to increase more in the evening (or before going to bed) than in the morning (or when getting up). When the amount of water in the body increases, the bioimpedance value decreases. Therefore, with reference to the daily change rate of the bioelectrical impedance value on the past day, this is compared with the daily change rate of the bioelectrical impedance value on the current day to determine whether swelling has occurred in the subject. It can be done. For example, in a plurality of past days, body weight values and bioelectrical impedance values are measured in the morning time zone (or when waking up) and in the evening time zone (or before going to bed), and these measured values are stored in the storage unit 16. Suppose that Then, a plurality of past daily change rates can be obtained. A reference value for the daily change rate is set using the plurality of daily change rates. The method for setting the reference value is not particularly limited. For example, the mode value may be used as the reference value, the median value may be used as the reference value, and the average value may be used as the reference value.

  A program for executing the steps shown in the flowchart of FIG. 14 is stored in the storage unit 16, and the central processing unit 15 executes this program.

  Referring to the flowchart of FIG. 14, first, a plurality of past daily change rates are obtained using the measured values of bioimpedance values based on past measurements stored in the storage unit 16 (step 1).

  Next, the subject is asked whether or not to use the mode values of the plurality of past daily change rates as reference values (step 2). The subject operates the operation unit 6 to determine whether or not to set the mode value as the reference value.

  When the subject determines that the mode is set as the reference value, the mode is calculated as the reference value (step 3).

  If it is determined in step 2 that the subject does not use the mode value as the reference value, the subject is then asked whether or not the median value is the reference value (step 4). The subject operates the operation unit 6 to determine whether or not the median is set as the reference value.

  When the subject determines that the median value is the reference value, the median value is calculated as the reference value (step 5).

  If it is determined in step 4 that the subject does not use the median value as the reference value, the subject is then asked whether or not the average value is the reference value (step 6). The subject operates the operation unit 6 to determine whether or not to use the average value as a reference value.

  When the subject determines that the average value is the reference value, the average value is calculated as the reference value (step 7).

  Then, the reference value calculated in step 3, step 5 or step 7 is stored in the storage unit 16 (step 8).

  In step 6, if the subject determines that the average value is not used as the reference value, the measurement data is read again from the past measurement values read from the storage unit 16 (step 1).

  As described above, the process of setting the reference value for the daily change rate of the bioelectrical impedance value is shown in FIG.

  When the reference value of the daily change rate of the bioelectrical impedance value is set by the process as shown in the flowchart of FIG. 14, next, using this reference value, is the subject currently in a swollen state? Determine whether or not.

  FIG. 15 is a flowchart showing an example of a process for this determination.

  As a premise that this flowchart is executed, the bioelectrical impedance value of the current day is measured in the morning time zone (or when waking up) and in the evening time zone (or before going to bed), and these measured values (the morning of the current day) It is assumed that the measured value of the bioimpedance value in the time zone (or at the time of waking up) and the measured value of the bioimpedance value in the evening time zone (or before going to bed) of the current day are stored in the storage unit 16.

  The process of the flowchart shown in FIG. 15 is started by pressing the determination key 6e after selecting the swelling determination mode with the mode switching key 6b.

Referring to the flowchart of FIG. 15, first, the measurement value of the bioelectrical impedance value stored in the storage unit 16 in the morning time zone (or when waking up) of the current day and the evening time zone of the current day (or before going to bed) ) Is measured from the storage unit 16 and the daily change rate of the bioelectrical impedance value of the current day is calculated (step 1).

  Next, the reference value of the daily change rate of the bioelectrical impedance value stored in the storage unit 16 is read from the storage unit 16 (step 2).

  Next, the daily change rate of the bioelectrical impedance value of the current day is compared with the reference value (step 3).

  If the diurnal change rate of the current day is greater than or equal to the reference value, it is determined that no swelling is observed in the subject, and “normal” is displayed on the display unit 5 (step 4). .

  On the other hand, if the daily change rate of the current day is smaller than the reference value, it is determined that the subject is in a swollen state, and “swelling” is displayed on the display unit 5 (step 5).

  FIG. 16 is a diagram showing a display state of the display unit 5 corresponding to step 5 in FIG. The “measured value” in FIG. 16 is the rate of change of the measured bioimpedance value on the current day. The display state of FIG. 16 will be described in more detail. For example, it is assumed that the right leg impedance value is measured when waking up and the right leg impedance value is measured again in the evening of the day. It is assumed that the measured value when waking up is 227 ohms and the measured value in the evening is 208 ohms. Then, the daily change rate (impedance value in the evening / impedance value when waking up) of that day is 91.6%. Since the reference value is 95%, the daily change rate of the day is lower than the reference value, and it is determined that swelling has occurred, and “swelling” is displayed as the determination result.

  If the measured value at the time of getting up is 236 ohms and the measured value at the evening is 233 ohms, the daily change rate of the day (impedance value in the evening ÷ impedance value at the time of waking up) is 98.7%. is there. Since the reference value is 95%, the daily change rate of the day is higher than the reference value, and it is determined that swelling has not occurred, and “normal” is displayed as the determination result.

  Note that the determination result may be displayed in more detail than the display as shown in FIG.

  FIG. 17 is a diagram illustrating a display state of the display 5 when the degree of swelling is determined in more detail. In the display of FIG. 17, the degree of swelling is classified into four levels. FIG. 17 shows a determination result that the degree of swelling is “somewhat high”.

  If the rank of the determination result is classified in more detail in this way, the species health condition of the subject can be determined in more detail, and more appropriate health management can be performed.

  As described above, how to determine the presence or absence of swelling, which is one of the health conditions of the subject, has been described with reference to FIGS.

  Since the degree of swelling and the degree of fatigue are closely related, the degree of fatigue may be determined by a flowchart similar to the flowchart of FIG. 15 or a flowchart similar to the flowchart of FIG.

  Next, as another example, how the weight loss tendency, which is one of the health condition determination items of the subject, is determined will be described with reference to FIGS.

  As described above, in order to determine the health state of a subject, it is necessary to set a reference value based on a weight value or a bioelectrical impedance value measured in the past. In the determination of the weight loss tendency here, a reference value is set based on the weight value measured in the past.

  The process for setting the reference value of the daily change rate of the bioelectrical impedance value based on the bioelectrical impedance value measured in the past has been described with reference to the flowchart of FIG. The reference value of the daily change rate of the weight value can be set by the same process as the process shown in the flowchart of FIG. In order to set the reference value of the daily change rate of the weight value, of course, the measurement target item must be a weight value, not a biological impedance value.

  More specifically, in order to set the reference value of the daily change rate of the weight value, first, the measured value of the weight value by the past measurement is read from the storage unit 16, and a plurality of past values are read from the read measurement value. Find the daily change rate. Next, the subject is caused to select which of the mode value, median value, and average value of the plurality of past daily change rates obtained in this way is the reference value. Then, the value selected by the subject is calculated as the reference value, and the calculation result is stored in the storage unit 16 as the reference value.

  As described above, when the reference value of the daily change rate of the body weight value is set by the same process as the flowchart shown in FIG. 14, next, the subject is currently in a weight-decreasing state using this reference value. It is determined whether or not.

  FIG. 18 is a flowchart showing an example of a process for this determination.

  As a premise that this flowchart is executed, the weight value of the current day is measured in the morning time zone (or when waking up) and in the evening time zone (or before going to bed). It is assumed that the measured value of the weight value in the time zone (or when waking up) and the measured value of the weight value in the evening time zone (or before going to bed) of the current day are stored in the storage unit 16.

  The process of the flowchart shown in FIG. 18 is started by pressing the determination key 6e after selecting the weight loss tendency determination mode with the mode switching key 6b.

  Referring to the flowchart of FIG. 18, first, the measurement value of the weight value in the morning time zone (or when waking up) stored in the storage unit 16 and the evening time zone of the current day (or before going to bed). The measured value of the body weight value is read from the storage unit 16 and the daily change rate of the body weight value of the current day is calculated (step 1).

  Next, the reference value of the daily change rate of the weight value stored (set) in the storage unit 16 is read from the storage unit 16 (step 2).

  Next, the calculated daily change rate (ΔW) of the weight value of the current day is compared with the reference value (ΔWs) (step 3).

  Then, if the daily change rate (ΔW) of the weight value of the current day is greater than or equal to the reference value (ΔWs), it is determined that the subject has no tendency to lose weight. Is displayed (step 4).

  On the other hand, if the daily change rate (ΔW) of the weight value of the current day is smaller than the reference value (ΔWs), it is determined that the subject has a tendency to lose weight, and the display unit 5 displays “weight loss”. (Step 5).

  FIG. 19 is a diagram showing a display state of the display unit 5 corresponding to step 5 of FIG. The “measured value” in FIG. 19 is the daily change rate (ΔW) of the weight value on the current day. The display state of FIG. 19 will be described in more detail. The reference value is 70%, the daily change rate of the weight value of the current day (ΔW = weight value before going to bed / weight value at waking up) is 69%, As a result, a determination result of “weight loss” is displayed.

  Note that the determination result may be displayed in more detail than the display as shown in FIG.

  FIG. 20 is a diagram illustrating a display state of the display 5 when the weight loss tendency is determined in more detail. In the display of FIG. 20, the degree of weight loss tendency is classified into four stages. And in FIG. 20, the determination result that the weight loss tendency is “somewhat” is shown. If the rank of the determination result is classified in more detail in this way, the species health condition of the subject can be determined in more detail, and more appropriate health management can be performed.

  As described above, how the weight loss tendency, which is one of the health conditions of the subject, is determined has been described with reference to FIGS.

  Based on the measured values of the subject's bioimpedance value and / or body weight value, the subject's health status (dehydrated state, excessive drinking, obesity tendency (overeating degree), swelling, fatigue level, weight loss tendency) An example of a determination device and a determination program for determining the degree of the above has been described.

  However, in order to more accurately determine the health state, not only the bioelectrical impedance value and the body weight value of the subject but also the body identification information of the subject may be used as the basis for the health state determination. The body specifying information is information relating to the personal body of the subject such as the gender, height, and age of the subject. By using this physical identification information as a basis for health condition determination, it can be expected that the health condition of the subject is more accurately determined.

  In order to use the body identification information as a basis for determining the health condition of the subject, for example, the operation unit 6 of the health condition determination apparatus may be used as an input unit for inputting the body identification information.

  The embodiments of the present invention have been described above with reference to the drawings.

  According to the health condition determination apparatus and the health condition determination program of the present application, the current health condition of the subject can be determined more appropriately, and thus can be used in the technical field of health management apparatuses.

DESCRIPTION OF SYMBOLS 1 Health condition determination apparatus 2 Main-body part 3 Signal cable 4 Weight measurement part 5 Display part 6 Operation part 7a Left protrusion part 7b Right protrusion part 8 Impedance measurement circuit 9 Measurement surface 10 Load cell 12 I / O port 13 Arithmetic processing part 14 Time measuring means 15 Central processing unit 16 Storage unit E1-E8 Electrode

Claims (30)

A measuring means for measuring an impedance value or / and a weight value of the subject's body;
Storage means;
A reference value setting means;
A determination means;
Display means,
The storage means stores the measurement value measured by the measurement means together with the measurement date and time,
The reference value setting means sets a reference value based on a plurality of past measurement values measured in the past by the measurement means and stored in the storage means,
The determination means compares the reference value with a current value measured by the measurement means or a current value set on the basis of an impedance value or / and a weight value on the current day. Determine your current health status,
The health state determination device, wherein the display means displays a result of the determination by the determination means. The measuring means can measure the impedance value of the subject's body,
The reference value setting means is approximately the same time as the current time among a plurality of measured values obtained by measuring a plurality of past impedance values measured by the measuring means in the past and stored in the storage means. Set the reference value based on the measured value,
The determination means determines the current health condition of the subject by comparing the reference value and the current value,
The health condition determination apparatus according to claim 1, wherein the current value is a measured value of a current impedance value measured by the measuring unit.   The reference value setting means stores the maximum of a plurality of measurement values measured at approximately the same time as the current time among a plurality of past measurement values of impedance values stored in the storage means. The health condition determination apparatus according to claim 2, wherein any one of a frequent value, a median value, and an average value is set as a reference value. The measuring means can measure an impedance value and a body weight value of the subject's body,
The reference value setting means is measured when a mode value among a plurality of measurement values obtained by measuring the body weight values in the past and measured by the measurement means in the past and stored in the storage means is measured. Set a reference value based on the impedance value
The determination means determines the current health condition of the subject by comparing the reference value and the current value,
The health condition determination apparatus according to claim 1, wherein the current value is a measured value of a current impedance value measured by the measuring unit.   The health condition determination apparatus according to any one of claims 2 to 4, wherein the display means displays the degree of dehydration or the degree of excessive drinking as a result of determination by the determination means. The measuring means can measure the weight value of the subject,
The reference value setting means is measured at approximately the same time as the current time among a plurality of measurement values obtained by measuring the body weight values in the past and measured by the measurement means in the past and stored in the storage means. Set the reference value based on the measured value
The determination means determines the current health condition of the subject by comparing the reference value and the current value,
2. The health condition determination device according to claim 1, wherein the current value is a measured value of a current weight value measured by the measuring means.   The reference value setting means is a mode value of a plurality of measurement values measured at approximately the same time as the current time among a plurality of measurement values obtained by measuring a plurality of body weight values in the past. The health condition determination apparatus according to claim 6, wherein either the median value or the average value is set as a reference value.   The health condition determination apparatus according to claim 6 or 7, wherein the display means displays an obesity tendency degree or an overeating degree as a result of determination by the determination means. The measuring means can measure the impedance value of the subject's body,
The reference value setting means is a plurality of past days on which a plurality of impedance values have been measured within a day, based on a plurality of past impedance value measurements stored in the storage means. Obtaining the daily change index value of the impedance value at, and setting a reference value based on the daily change index value of the impedance value,
The determination means determines the current health condition of the subject by comparing the reference value and the current value,
The health status determination apparatus according to claim 1, wherein the current value is set based on a daily change index value of the impedance value of the current day obtained by measuring the impedance value a plurality of times within the current day. The daily change index value of the impedance value obtained by the reference value setting means is the daily change rate of the impedance value,
The health condition determination apparatus according to claim 9, wherein the intraday change index value of the current day impedance value is a daily change rate of the current day impedance value.   The health condition determination device according to claim 9 or 10, wherein the reference value setting means sets, as a reference value, one of a mode value, a median value, and an average value of the daily change index values of impedance values in a plurality of past days. .   The health condition determination apparatus according to any one of claims 9 to 11, wherein the display means displays swelling or fatigue as a result of determination by the determination means. The measuring means can measure the weight value of the subject,
The reference value setting means is configured to calculate the weights of a plurality of past days when the weight values are measured a plurality of times within a day from the measurement values obtained by measuring the weight values of the past a plurality of times stored in the storage means. The daily change index value of the value is obtained, a reference value is set based on the daily change index value of the weight value,
The determination means determines the current health condition of the subject by comparing the reference value and the current value,
2. The health condition determination device according to claim 1, wherein the current value is set based on a daily change index value of the current day's weight value obtained by measuring the weight value a plurality of times within the current day. The daily change index value of the weight value obtained by the reference value setting means is the daily change rate of the weight value,
The health condition determination apparatus according to claim 13, wherein the daily change index value of the current day's weight value is a daily change rate of the current day's weight value.   The health condition determination device according to claim 13 or 14, wherein the reference value setting means sets, as a reference value, one of a mode value, a median value, and an average value of daily change index values of weight values in a plurality of past days. . The health condition determination apparatus according to any one of claims 13 to 15, wherein the display means displays a weight loss tendency degree as a result of determination by the determination means. It further comprises input means for inputting the body identification information of the subject,
The health condition determination apparatus according to any one of claims 1 to 16, wherein the determination means determines the current health condition of the subject based on the body specifying information input by the input means. A health condition determination program for causing a computer as a calculation means to execute a determination calculation of the current health condition of a subject,
A reading step of reading a plurality of past measurement values stored in the storage means;
A reference value setting step for setting a reference value based on the read measurement values;
A determination step of determining the current health condition of the subject by comparing the reference value and the current value;
The plurality of past measurement values stored in the storage means are measurement values measured in the past by the measurement means for measuring the body impedance value and / or body weight value, and Stored together with the date and time of measurement by the measuring means,
The program for health condition determination, wherein the current value is a value set based on an impedance value or / and a body weight value at a current time or a current day measured by the measuring means. The plurality of past measurement values read in the reading step are measurement values of impedance values measured in the past by a measuring means capable of measuring the impedance value of the body of the subject.
In the reference value setting step, a reference value based on a measurement value read at the reading step and measured at approximately the same time as the current time among a plurality of past measurement values of the impedance value. Set
The health condition determination program according to claim 18, wherein the current value is a measured value of a current impedance value measured by the measuring means.   In the reference value setting step, the mode of a plurality of measurement values measured at approximately the same time as the current time among a plurality of measurement values obtained by the past measurement of the impedance value read in the reading step. The health condition determination program according to claim 19, wherein any one of a value, a median value, and an average value is set as a reference value. The plurality of past measurement values read in the reading step are impedance values and weight values measured in the past by a measuring means capable of measuring the body impedance value and the body weight value. Yes,
In the reference value setting step, the reference value is set based on the impedance value measured when the most frequent value among the plurality of measurement values obtained by the past measurement of the weight value read in the reading step is measured. And
The health condition determination program according to claim 18, wherein the current value is a measured value of a current impedance value measured by the measuring means. The plurality of past measurement values read in the reading step is a measurement value of the body weight value measured in the past by a measuring means capable of measuring the body weight value of the subject,
In the reference value setting step, a reference value is set based on a measurement value read at the reading step and measured at approximately the same time as the current time among a plurality of measurement values obtained by past measurement of weight values. And
The health condition determination program according to claim 18, wherein the current value is a measured value of a current weight value measured by the measuring means. In the reference value setting step, a mode value of a plurality of measurement values measured at approximately the same time as the current time among a plurality of measurement values obtained by measurement of a plurality of past weight values read in the reading step, The health condition determining program according to claim 22, wherein either the median value or the average value is set as a reference value. The plurality of past measurement values read in the reading step are measurement values of impedance values measured in the past by a measuring means capable of measuring the impedance value of the body of the subject.
In the reference value setting step, a plurality of past days in which the impedance value is measured a plurality of times within a day from the measurement values obtained by measuring the impedance values a plurality of times in the past read in the reading step. Obtaining the daily change index value of the impedance value at, and setting a reference value based on the daily change index value of the impedance value,
The current value is a value set based on a daily change index value of the impedance value of the current day, which is obtained by measuring the impedance value a plurality of times within the current day by the measuring means. The health condition determination program described. In the reference value setting step, the daily change rate of the impedance value is obtained as the daily change index value of the impedance value,
The health condition determination program according to claim 24, wherein the value obtained as an intraday change index value of the current day impedance value is a daily change rate of the current day impedance value.   26. The health state determination according to claim 24 or 25, wherein in the reference value setting step, one of a mode value, a median value, and an average value of daily change index values of impedance values in a plurality of past days is set as a reference value. program. The plurality of past measurement values read in the reading step is a measurement value of the body weight value measured in the past by a measuring means capable of measuring the body weight value of the subject,
In the reference value setting step, the weight in the past multiple days when the weight value was measured a plurality of times within one day from the measurement value obtained by the past measurement of the weight value read in the reading step The daily change index value of the value is obtained, a reference value is set based on the daily change index value of the weight value,
19. The current value is a value set based on a daily change index value of a weight value of the current day, which is obtained by measuring the weight value a plurality of times within the current day by the measuring means. The health condition determination program described. In the reference value setting step, the daily change rate of the weight value is obtained as a daily change index value of the weight value,
28. The health condition determination program according to claim 27, wherein the value obtained as the intraday change index value of the current day's weight value is the daily change rate of the current day's weight value.   29. The health condition determination according to claim 27 or 28, wherein in the reference value setting step, one of a mode value, a median value, and an average value of daily change index values of weight values in a plurality of past days is set as a reference value. program. Further comprising a body identification information reading step of reading the body identification information input to the input means for inputting the body identification information of the subject,
The health condition determination program according to any one of claims 18 to 29, wherein in the determination step, the current health condition of the subject is determined based on the body specifying information.

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