JPH09285455A - Health management guide advising device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized, light weight and inexpensive health management guide advising device with excellent measurement accuracy usable even by an individual and in a general household capable of easily measuring invivo impedance by a testee himself/herself and performing the measurement of visceral fat amount and ratio and the judgement of a corpulent type further. SOLUTION: The high frequency signals of a frequency with an excellent energizing property to a blood vessel part generated by a high frequency signal generation part 21 are impressed between two electrodes selected from the electrodes 17, 18, 55 and 56 for impressing the high frequency signals at both hands and feet in an electrode signal switching part 32 and impedance between respective parts is measured from a potential led out from the two electrodes selected from the electrodes 19, 20, 57 and 58 for measuring the resistance potential of both hands and feet. Based on the impedance information and separately inputted body specifying information, an adult disease screening index is estimated and calculated.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to estimating and calculating an adult disease screening index based on body specification information and body impedance information of a subject, or lean body mass information obtained by subtracting bone mass from lean body mass and body mass. Estimate and calculate the basal metabolic rate as an adult disease screening index from the specified information,
The present invention relates to a health management guideline advice device that presents guideline information for health management based on the calculation results.

[0002]

2. Description of the Related Art Conventionally, in order to measure body fat,
A four-electrode internal impedance measuring method is known. This internal impedance measurement method, as shown in FIG.
A main body apparatus 1 and a pair of electrodes 2 and 3 for applying a high frequency signal connected from the main body apparatus 1 by a lead wire 6;
Using a device provided with a pair of electrodes 4 and 5 for measuring body resistance potential, a subject is laid on a bed, and electrodes 2 and 3 are attached to the right hand and right foot, respectively, as shown in FIG. The electrodes 4 and 5 for body resistance potential measurement are attached to the right foot near each other, a high frequency signal is applied from the main body device 1 to the electrodes 2 and 3 to energize the subject, and the potential difference between the electrodes 4 and 5 is measured. Then, the biological impedance of the subject is obtained from the measured potential difference and the energized current.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the body fat percentage measuring device using the above-mentioned four-electrode type internal impedance measuring method,
There are the following problems. In order to eliminate the error in the energization path change and to obtain sufficient measurement accuracy, the measurement posture should be supine, and in order to prevent contact between both feet and contact between both arms and the trunk, it is necessary to separate them.

Due to the restraint of the subject and the complicated mounting and operation of electrodes, a special operator is additionally required, the subject cannot operate with confidence, and is not suitable for home use. Since it is for business use that processes a large number of subjects, it is equipped with a large key input / display unit, printer unit, AC power supply unit, etc., and is large and inconvenient to handle. Multiple electrodes with extension cables make preparation and disposition troublesome.

It is necessary to reduce the influence of contact resistance by applying a conductive agent such as keratin cream to the limbs to which the electrodes are attached, as in the case of attaching the electrodes of an electrocardiograph. When estimating body fat by impedance measurement, the impedance information of the trunk is more important than the hands and feet, but between the conventional measurement sites, the impedance of the hands and feet is much larger than the trunk, Moreover, since the impedance at the joints is particularly large, it has been found that the measurement results are greatly affected by persons with thin limbs, persons with large bones, and slight differences in joint postures.

[0006] For example, as an example of impedance measurement results of various parts of the body, for a man with thick limbs: 350 Ω between the right hand and the right leg, 150 Ω for the right arm, 130 Ω for the right leg, 70 Ω for the body. , Right arm 360 Ω right leg 240 Ω, torso 75 Ω wrist joint: 25 to 50 Ω Obesity generally has subcutaneous fat type and visceral fat type. , Because it is liable to cause glucose metabolism disorders such as hyperinsulinemia and lipid metabolism disorders such as hypercholesterolemia, the visceral fat amount / ratio in the body fat amount and the obesity of subcutaneous fat type or visceral fat type Standard judgment is required, and currently X-ray CT and M
Development of a simple measuring method device is desired because it can be realized only with a device such as RI which is very large and highly accurate and expensive.

The present invention has been made in view of the above-mentioned problems, and it is possible to easily measure the internal impedance of the subject with confidence of the subject, to measure the visceral fat amount and ratio, and to determine the obesity type. It is an object of the present invention to provide a health management guideline advice device that is lightweight, inexpensive, has high measurement accuracy, and can be used by individuals and ordinary households.

[0008]

According to a first aspect of the present invention, there is provided a health management guideline advising device comprising a portable main body portion,
A grip for the left hand and a grip for the right hand, which are formed at both ends of the main body and are provided with a first electrode for applying a high frequency signal and a second electrode for measuring a body resistance potential, respectively, and a cable for the main body. And a foot electrode portion having a first electrode for applying a high frequency signal and a second electrode for measuring a body resistance potential, and the main body portion has a high frequency of a frequency with good conductivity to the blood vessel portion. The high frequency signal generating means for generating a signal and the high frequency signal generating means for the first electrode of any two parts of a plurality of living body parts in which the first electrode and the second electrode are respectively arranged. Impedance measuring means for applying a high frequency signal and measuring the impedance between the two parts by the potential derived from the second electrode of the two parts, and the impedance between the parts measured by the impedance measuring means Based on body specifying information input broadcast and another, characterized in that a means for estimating and calculating the adult screening indicator.

In this advice device, for example, the left hand grip is gripped with the left hand and the right hand grip is gripped with the right hand, and the first electrode and the second electrode for the hand are brought into contact with the hand, and the subject also touches the foot electrode part. By contacting the sole of the foot with the first electrode and the second electrode, the impedance of various parts can be measured with confidence while the subject is standing. Then, the adult disease screening index is estimated and calculated based on the impedance information between the respective parts and the body specification information separately input.

A health management guideline advising device according to a second aspect of the present invention includes a portable main body, and a first electrode for applying a high-frequency signal and a body resistance potential measurement formed on both ends of the main body. A left hand grip and a right hand grip provided with a second electrode, a first electrode for applying a high frequency signal, a second electrode for measuring a body resistance potential, which is connected to the main body by a cable.
A high-frequency signal generating means for generating a high-frequency signal in the main body, and a plurality of living body parts in which the first electrode and the second electrode are arranged, respectively. Impedance measuring means for applying a high-frequency signal from the high-frequency signal generating means to the first electrodes of arbitrary two parts and measuring the impedance between the two parts by the potential derived from the second electrode of the two parts. And the fat free mass of the living body is calculated based on the impedance information between the respective parts measured by the impedance measuring means and the body specification information separately input, and the fat free mass obtained by subtracting the bone mass from the fat free mass. Means for estimating and calculating a basal metabolic rate as an adult disease screening index based on the information and the body-specific information.

With this advice device, the impedance of various parts can be measured in the same manner as the device according to the first aspect. Then, the fat free mass of the living body is obtained from the impedance information between each part and the body specificity information, and based on the fat free mass information obtained by subtracting the bone mass from the fat free mass and the body specificity information, an adult disease screening index The basal metabolic rate as is estimated and calculated.

Therefore, according to the advice apparatus according to the first and second aspects, not only the internal impedance of the subject can be easily measured with confidence of the subject, but also the visceral fat mass and the ratio are measured from the impedance information and the body specification information. It can also be used to determine obesity type and can be easily used by individuals and ordinary households. Further, in the advice device according to the third aspect, by using the tomographic image information of the body part as the estimation criterion of the adult disease screening index, it is possible to more easily provide the adult disease screening index which is highly recognized in the medical community. .

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. FIG. 1 is an external perspective view of a health management guideline advice apparatus showing an embodiment of the present invention. This device includes a main body device 10, a foot electrode part 50, and a cable 51 connecting the main body device 10 and the foot electrode part 50.
It is composed of

The main body device 10 includes a main body 11, a left hand grip (grip) 12 and a right hand grip (grip) 13 which are integrally formed at both left and right ends of the main body 11.
It is composed of Further, on the front surface of the main body portion 11, a power switch 14, a key switch 15 for inputting a start instruction and height, weight, etc., which are physical characteristics of the subject,
Further, a display unit 16 for displaying the measurement result and the advice information is provided. The display portion 16 is arranged so as to be substantially in the center between the left-hand grip portion 12 and the right-hand grip portion 13.

Both the left-handed grip portion 12 and the right-handed grip portion 13 have a substantially vertical columnar shape, and electrodes 17 and 18 for applying a high-frequency signal and electrodes 19 and 20 for measuring a resistance potential are formed on the respective surfaces. It is provided. These electrodes 1
Although not shown in FIG. 1, the electrodes 7, 18 and the electrodes 19, 20 are electrically connected to the circuit portion in the main body portion 11.

In the foot electrode section 50, a left foot positioning section 53 and a right foot positioning section 54 are arranged on a substantially rectangular flat sheet material section 52.
54, electrodes 55 and 56 for applying high-frequency signals, respectively.
And electrodes 57 and 58 for measuring the resistance potential are provided. Further, the housing portion 5 is provided at the upper end of the front portion of the sheet material portion 52.
9, a housing 60 is provided with a display 60 for monitoring the measurement state. Further, a through hole 61 is formed in front of the sheet material portion 52 between both foot positioning portions.

As shown in the sectional view of FIG. 3, the sheet material portion 52 is composed of a top sheet 62 and a back sheet 63. As a material for these sheets 62 and 63, PV is used.
C, PET, polyethylene, etc. are used. Further, elastic projections 64 and 65 are formed from the sheet material portion 52 in regions corresponding to the arch of the foot positioning portions 53 and 54, and the above-mentioned electrodes 5 are formed on the projections 64 and 65, respectively.
5, 56, 57 and 58 are provided. Although the sectional structure of the positioning portion for the right foot is shown in FIG. 3, the sectional structure of the positioning portion for the left foot is similar. The protrusions 64 and 65 are provided in this way, and the electrodes are formed here.
When the subject's feet are placed on both foot positioning parts 53 and 54,
This is to ensure that the electrodes contact the arch of the sole of the foot. Silicon rubber, for example, is used as the elastic sheet material forming the protrusions 64 and 65. Housing part 5
ABS, PVC or the like is used as a material for forming 9.

The cable 51 has connectors 66, 6 at both ends.
7, the main body device 10 and the foot electrode portion 50 are detachably connected. When measuring the bioimpedance of the subject using the apparatus of this embodiment, as shown in FIG. 2, the subject A places his / her both feet on the foot positioning portions 53 and 54 of the foot electrode section 50, and Grip the grip portion 12 of the main body device 10 with the left hand and the grip portion 13 with the right hand,
The measurement is started in a state where both hands are raised horizontally forward and the main body device 10 is held at the shoulder height.

4 and 5 are block diagrams showing the circuit configuration of the apparatus of the embodiment. The internal circuit of this device has a frequency with good conductivity in the blood vessel portion including the capillary, that is, a frequency f≈50 KHz (10 K) at which information on the degree of blood vessel development is obtained.
(Hz <f <100 KHz), a high-frequency signal generator 21 that generates a constant-current high-frequency signal, a differential amplifier 22 that receives potential signals from the electrodes 19 and 20, and a band for cutting signals other than the frequency f _0. A pass filter 23, a demodulation circuit 24 for demodulating a high frequency signal component, an A / D converter 25 for converting an analog signal into a digital signal, and a ROM 26.
, RAM 27, data from the A / D conversion unit 25 and data input unit 15 such as height, weight, age, sex, date and time (body specific information) are fetched, impedance measurement processing calculation, and health A CPU 28 that executes a process of extracting management guideline advice information, a buzzer 29 that issues a warning, a measurement result output unit 30 that outputs measurement results to a printer or the like by communication, a battery 31 for power supply, and a higher frequency. The electrodes 17, 18, 19, 20 of the grip parts 12, 13 and the inputs of the signal generating part 21 and the differential amplifying part 22,
The electrode signal switching unit 32 for selectively switching and connecting the electrodes 55, 56, 57, 58 of the foot electrode unit 50 via the connector 66, the cable 51, and the connector 67, or for short-circuiting and opening the connection. Is equipped with. The switching of the electrode signal switching unit 32 is performed by an analog switch, a relay, or the like, and what switching is performed is determined by an electrode switching control signal issued from the CPU 28 corresponding to the measurement mode setting of the CPU 28.

In the apparatus of the above embodiment, the body specification information input from the data input unit 15 may use data measured at another occasion, but the weight is in a sheet form as shown in FIG. The foot electrode part 50 of the household scale 6
Alternatively, the subject may be placed on the foot electrode section 50 in this state, measured by the weight scale 68, and the measured weight value may be input. Since the foot electrode portion 50 of the device of the embodiment is provided with the through hole 61, the instruction value of the weight scale 68 is read through the through hole 61 while holding the main body device 10 as shown in FIG. be able to. This through hole
Since it is sufficient to read the indication value of the scale 68, the transparent window may be used instead.

By the way, in the case of measuring the impedance between both feet, when the both feet are brought close to each other, the thigh part may come into contact with the subject. In this case, the measurement path changes, which affects the measurement accuracy. Will be done. In the foot electrode portion 50 of the apparatus of the embodiment, foot positioning portions 53 and 54 are arranged with a through hole 61 interposed therebetween, and the foot positioning portions 53 and 54 are provided with electrodes 55, 56, 57 and 58. Therefore, the through hole 61 has a function of indirectly positioning the both feet to some extent.

In the apparatus configured as described above, for example, the impedance component of the limb is calculated from the impedance between both hands and the impedance value between both feet, and the calculated value is calculated by hand-
By subtracting from the impedance value between the legs, it is possible to obtain impedance value information only for the torso, and from this impedance information and the body specification information of the subject (height, weight, age, sex, etc.), an adult disease screening index ( Visceral fat amount, visceral fat amount / subcutaneous fat amount ratio, etc.) is calculated. In addition, the visceral fat and subcutaneous fat amount and ratio accumulated in the torso part are directly calculated from the balance information such as muscle development of the extremities and the body-specific information that the extremity impedance information, which is the basis for calculating the torso impedance value, has. It is also possible to do it. However, only for the waist / hip ratio, which is one of the screening indices for adult diseases, the measurement result by the measure is used as the estimation standard.

Next, the specific switching processing operation of the electrode signal switching section 32 in the apparatus of the above embodiment will be described. First, in the case of measuring the impedance between the right hand and the right foot, when the impedance measurement mode between the right hand and the right foot is set, the switching control signal from the CPU 28 causes
The electrode signal switching unit 32 is switch-connected as shown in FIG. That is, the connection line I _h2 of the high-frequency signal applying electrode 18 on the right hand is connected to one end of the high-frequency signal generating unit 21, and the connection line I _f2 of the high-frequency signal applying electrode 56 on the right foot is the other side of the high-frequency signal generating unit 21. Connected to the end. Further, the connection line E _h2 of the resistance potential measuring electrode 20 of the right hand and E _f2 of the resistance potential measuring electrode 58 of the right leg are connected to one end and the other end of the input of the differential amplification section 22. Then, the left-hand side high frequency signal applying electrode 1
7 connection line I _h1 and resistance potential measurement electrode 19 connection line E _h1
Is OPEN, not connected anywhere. Further, the connection line I _f1 of the high-frequency signal applying electrode 55 and the connection line E _{f1 of the} resistance potential measuring electrode 57 on the left foot are not connected to anywhere, and OP
It is EN.

Next, when the left hand-left foot impedance measurement mode is set, the electrode signal switching section 32 is switch-connected as shown in FIG. 7 by a switching control signal from the CPU 28. That is, the connection line I _h1 of the high-frequency signal applying electrode 17 on the left hand is connected to one end of the high-frequency signal generating unit 21, and the connection line I _f1 of the high-frequency signal applying electrode 55 on the left foot is different from the high frequency signal generating unit 21. Connected to the end.
Further, the connection line E _h1 of the left-hand side resistance potential measuring electrode 19 and the left-foot resistance potential measuring electrode 57 E _f1 are connected to one end and the other end of the input of the differential amplifier 22. The connection line I _h2 of the high-frequency signal applying electrode 18 on the right hand and the connection line E _h2 of the resistance potential measuring electrode 20 are not connected anywhere and are OPEN. Also, the connection line I of the high-frequency signal applying electrode 56 on the right foot
connection line E _f2 of _f2 and resistance potential measuring electrode 58, anywhere without being connected, is OPEN.

When the two-handed impedance measurement mode is set, the switching control signal from the CPU 28 causes the electrode signal switching section 32 to be switched and connected as shown in FIG. That is, the left-hand side high frequency signal applying electrode 17
Connection line I _h1 is connected to one end of the high-frequency signal generator 21, and the connection line I _h2 of the right-hand side high-frequency signal applying electrode 18 is
It is connected to the other end of the high frequency signal generator 21. The connection line E _h2 of the connection line E _h1 and right of the resistor potential measuring electrode 20 of the left hand resistive potential measuring electrode 19 is connected to one end and the other end of the input of the differential amplifier 22. In this case, as a matter of course, the connection lines I _f1 , I _f2 , E _f1 , and E _f2 relating to the electrodes of both feet are not connected to OPEN.

When the impedance measurement mode between both legs is set, the electrode signal switching section 32 is switch-connected as shown in FIG. 9 by the switching control signal from the CPU 28. That is, the connection line I _f1 of the high-frequency signal application electrode 55 of the left foot is connected to one end of the high-frequency signal generation unit 21, and the connection line I _f2 of the high-frequency signal application electrode 56 of the right foot is
It is connected to the other end of the high frequency signal generator 21. A connection line E _f1 of the resistance potential measuring electrode 57 of the left leg and a connection line E _f2 of the resistance potential measuring electrode 58 of the right leg are connected to one end and the other end of the input of the differential amplifier 22. In this case, contrary to the impedance measurement between both hands, the connection lines I _h1 , I _h2 , E _h1 , and E _h2 related to the electrodes of both hands are not connected to OPE.
N.

In the impedance measurement mode between the right hand and the left foot
When set, switching control signal from CPU 28
Accordingly, the electrode signal switching unit 32, as shown in FIG.
Switched and connected. In other words, the right hand high frequency signal application electrode
18 connecting lines I_h2Contacts one end of the high-frequency signal generator 21.
The connection line I of the electrode 55 for applying the high frequency signal on the left foot _f1
Is connected to the other end of the high frequency signal generator 21. Also right
Connection line E of the electrode 20 for measuring the resistance potential of the hand_h2And left foot resistance
Connection line E of potential measuring electrode 57_f1Of the differential amplifier 22
Connected to one end and the other end of the input. And the high frequency of the left hand
Connection line I of the signal application electrode 17_h1And resistance potential measurement electrode
19 connecting lines E_h1Is not connected to anything
is there. Also, the connection line I of the high-frequency signal applying electrode 56 on the right foot
_f2And the connection line E of the resistance potential measuring electrode 58_f2Nowhere
It is not connected and is OPEN.

When the impedance measurement mode between the left hand and the right foot is set, the electrode signal switching section 32 receives the switching control signal from the CPU 28 as shown in FIG.
Switched and connected. In this case, the right hand and the left hand, the left foot and the right foot are reversed from those in the case of FIG. 10, and the case of FIG.
Since the right and left connections may be reversed, the description is omitted.

In the case of measuring the impedance between both hands and both feet, the CPU 28 causes the electrode signal switching section 32 to detect the presence / absence of the connection detection signal of the foot electrode section 50 by the cable 51.
In addition, a switching control signal according to the mode setting command is added, and the electrode signal switching unit 32 is switched and connected as shown in FIG. That is, the high frequency signal applying electrodes 1 of both hands
The connection lines I _h1 and I _{h2 of} 7 and 18 are commonly connected and connected to one end of the high frequency signal generation unit 21. In addition, the connection lines E _h1 and E _h2 of the resistance potential measuring electrodes 19 and 20 of both hands are commonly connected and connected to one end of the input of the differential amplifier 22. Then, the connection lines I _f1 and I _f2 of the high frequency signal applying electrodes 55 and 56 of both feet are commonly connected and connected to the other end of the high frequency signal generating section 21, and the resistance potential measuring electrodes 5 of both feet are connected.
The connection lines E _f1 and E _{f2 of} 7, 58 are commonly connected and connected to the other end of the input of the differential amplifier 22.

Here, the device of the above embodiment is adopted.
The calculation principle of the adult disease screening index by measuring the impedance of each site will be described. ("Types of Obesity and Diabetes", pp. 7-13, Diabetes Journal Vol.16, No.4,
(See 1988) Generally, there are blood vessels (blood flow), organs, etc. that are involved in basal metabolism in the lean body part of a living body, and it is known that these blood vessels, organs, etc. are involved in the heat source of the living body. ing. Therefore, the degree of blood vessel development can be estimated by measuring the blood vessel portion including the capillaries at the frequency f having good conductivity. The blood vessel portion information (such as the degree of development) including capillaries is proportional to the amount of muscle and the amount of internal organs that are composed of tissues with high capillary density, and therefore the lean body mass (LBM:
Similarly, the correlation with Lean Body Mass becomes high, and it becomes possible to estimate the body fat percentage, and the impedance information and body identification of each part of the body and extremities obtained by processing the impedance measurement results of each part. It is possible to estimate the deviation from the standard body type based on the sexualization information (height, weight, age, sex, etc.) and to estimate the relative change in the fat accumulation distribution.

More specifically, the principle of the BI (Bioelectrical Impedance) method is as follows.
In FIG. 13, bioelectrical impedance (Zb) ∝ρ × L / S = ρ × L ² /
V Bio-conductive part volume (V) ∝ lean body mass ∝ body water content ∝ ρ × L
² / Zb body fat percentage (% Fat) = {(weight-lean mass) / body weight}
× 100 = (fat amount / body weight) × 100 (%). However, ρ is the resistivity.

Further, the impedance of each part of the human body is equivalently shown in FIG. Based on such a fact, the adult disease screening index is calculated as follows. Estimate the volume (V _b ) of the body. The volume V _b is V _b ∝ body mass index × limb body balance correction information item (K) body mass index (BMI: Body Mass Index) = W / H ² (W: weight, H: height) limb body balance correction information item ( K) = f (Z _h , Z _f ,
Z _w ). K is impedance between both palms (Z _h ), impedance between both feet (Z _f ), both palms-measured from the limb electrodes.
It is a function of impedance between both legs (Z _w ), and is a function composed of relative change information of each impedance value at the time of standard limb type balance. In addition, the standard body type is estimated from the body mass index, the volume of the body is estimated, and the volume is corrected by the limb body type balance correction information item. The body lean part volume (V ₁ ) is estimated.

The volume V ₁ is V ₁ = f (Z _s , body specification information ) ∝ Blood vessel / blood flow rate ∝ Fat free mass (LBM ') Z _s : Impedance value of body only Z _s = Z _w − (Z _h + Z _f ) / 4. The body fat volume (V _s ) is calculated by the following formula.

V_s= V_b-V₁= F (physique index, body characteristics
(Normalization information, limb impedance information)  Estimate body fat mass (BFM ')
I do. BFM '= f (V_s) = F (body specific information, extremity in)
Peedance information) = f {(W, H, SEX, Age),
(Z_h, Z_f, Z_w, Z_s)} The body mass index can be regarded as body-specific information. Estimate the V / S ratio.

Body type balance information can be known from the limb impedance information and the body specification information. Especially in the lower body, especially in the case of foot development, for example, when the muscles of the foot are poorly developed, and when the impedance value Z _{s of} only the torso is higher than the standard Z _s in the standard physique, visceral fat is compared to subcutaneous fat. It can be easily inferred that the ratio will increase.

Therefore, it was extracted from the tomographic image information measured by X-ray CT, NMR (MRI), ultrasonic diagnostic equipment, etc. from the body fat mass (BFM ') of the body, the body specification information and the limb impedance information. With the V / S ratio as the estimation standard,
Using the estimation formula extracted using the regression analysis method, V ₀ / S
Estimate ₀ . That is, V _b / S _b is expressed by the following equation (1). V ₀ is the visceral fat cross-sectional area extracted from the torso image of the body, and S ₀ is the subcutaneous fat cross-sectional area extracted from the tomographic image of the body.

V ₀ / S ₀ = f (BFM ′, body specification information, limb impedance information) = f (body specification information, limb impedance information) = f {(W, H, SEX, Age), (Z _h , Z _f , Z _w , Z _s )} (1) Next, the measurement operation of the apparatus of the above embodiment will be described with reference to FIGS.
This will be described with reference to the flowchart shown in FIG. Here,
The standard measurement mode is both hands-feet.

When the power switch 14 is turned on, the RAM
And the like, and measurement preparation processing such as checking each circuit element and display element is performed [step (hereinafter abbreviated as ST) 1]. Next, from the data input unit 15, the test subject
Body specific information such as weight, age, sex, waist / hip ratio, and measurement date / time data are input (ST2). It waits until the input of these data is completed (ST2, 3), and when the data input is completed, it is determined whether or not the foot electrode portion is connected (ST4). This determination is performed by the CPU 28 in the circuits of FIGS. 4 and 5 by determining the connection presence / absence detection signal from the connector 66 (67).

When the determination is NO in ST4, the display unit 16
Then, a display indicating that the foot electrode portion needs to be connected, that is, a notification is given (ST5). If the determination in ST4 is YES,
The electrode signal switching unit 32 is set to the measurement mode between the hands and feet, and the identification code for selecting both hands and feet is set (ST.
6). After switching setting is completed, start S of the data input unit 15
It waits until W is turned on (ST7). Here, after the switching setting is completed, an instruction display “Please turn on the start SW” may be displayed on the display unit 16 to prompt the subject to perform a key operation. When the start SW is turned on, a time delay of several seconds is set (ST8), and the notification that the measurement is started is notified by the buzzer 29 or displayed on the display unit 16 (ST9). The delay time in ST8 is set to a time sufficient for the subject to grip the grip portions 12 and 13 completely and accurately with both left and right hands after the start SW is turned on and to properly place both feet on the foot positioning portions 53 and 54. To do.

When the impedance is measured, it is confirmed whether or not the measured impedance value is stable in the normal range (ST10, 11). If the impedance is not stable, the display section 16 displays "electrode, hand, foot". Please contact firmly. "And the buzzer 29 is operated to notify that fact (ST12). In ST11, if the measured value is normal and stable, the measurement process is executed (S
T13), the electrode signal switching unit 32 determines whether or not it is a both hands-both feet selection code (ST14). Initially, this judgment is Y
Since it is ES, the measurement result, that is, the measured impedance Z _w
Is stored in the memory area as information of both hands and both feet (ST1
5) This time, the electrode signal switching unit 32 is changed to the both-hands measurement mode and the both-hands selection identification code (S).
T16). Then, returning to ST10, ST10 to ST1.
In step 3, the impedance Z _h between both hands is measured.

In the next step ST14, "whether the both-hands / both-foot selection identification code of the electrode signal switching section 32" is determined, the pre-processing ST1 is performed.
Since it has been changed to the both-hands selection identification code in 6, the result is NO, and the process proceeds to ST17. In ST17, the electrode signal switching unit 32 determines whether it is a both-hands selection code, and this determination is Y.
If ES (initially YES), the measurement result, that is, the measured impedance Z _h is stored in the memory area as the information of both hands (ST18). Then, the electrode signal switching unit 32 is changed to the inter-feet measurement mode and the inter-feet selection identification code is changed (ST19), and the process returns to ST10 to return to ST10.
In ST13, the impedance Z _f between both legs is measured.

This time, since the determinations in ST14 and ST17 are both NO, the process moves to ST20 and the impedance Z _w between both hands and both feet and the impedance Z _h between both hands are read from the memory area (ST20), and the impedance Z _w is read.
Then, the bioelectrical impedance Z _b is calculated from Z _h and Z _h and the impedance between both feet Z _f (ST21). Furthermore, body specific information such as weight and height is read from the memory area (ST
22).

Next, body specification information (W, H, SE
X, Age) and limb impedance information (Z _h , Z _f ,
The body fat mass (BFM ′) is calculated from Z _w ) and the body impedance (Z _s ) (ST23). And
The body part V / S ratio (V ₀ / S ₀ ) is calculated from the estimation formula (1) (ST24). Calculated V / S ratio (V ₀ /
It is determined whether S ₀ is smaller than 0.5 (ST2
5) If it is small, it is judged as subcutaneous fat type (ST27), and V
_{If 0} / S ₀ ≧ 0.5, it is determined to be visceral fat type (S
T26). Finally, the end of measurement / calculation is notified by the display unit 16, the buzzer 29, etc. (ST28), the calculation result and the advice result are displayed on the display unit 16, and output processing is performed to the outside through a means having a communication function. (ST29).

In the above embodiment, the visceral fat amount, the visceral fat amount / subcutaneous fat amount ratio and the like are used as the index for adult disease screening, but only the visceral fat amount may be used as the index for adult disease screening. Further, the above embodiment is
A case where a high-frequency signal having a frequency with good conductivity to the blood vessel portion is applied to the living body, and a case where the basal metabolic rate is estimated and calculated from the lean body mass and the bone mass will be described. ("Science of body composition", "Physiological meaning of body composition", 12th-13th
Page, Asakura Shoten, published March 20, 1988).

Generally, the lean body part has a bone mass part in addition to blood vessels and organs involved in basal metabolism, and this bone mass part does not participate in basal metabolism (that is, a heat source). Further, the bone mass portion occupies about 12% of the lean body portion, and this ratio is considered to be constant in adults. Therefore, if the lean mass is calculated and 12% is subtracted from the value (multiplied by 88%), the lean mass excluding the bone mass not involved in basal metabolism can be calculated. Then, the basal metabolic rate as an adult disease screening index can be estimated and calculated based on the obtained lean body mass information and body specification information. By the way, as described in the above material, the relationship between basal metabolism and fat free mass is basal metabolism ∝ resting oxygen consumption ∝ fat free mass, and resting oxygen consumption and fat free mass are The correlation with 0.
Very high at 924.

The calculation of the fat free mass is as described above, and when measuring the bone mass separately, a large medical device such as a bone density measuring device (DXA) using the dual energy X-ray absorption measuring method is used. You can use it. In this case, the DXA or the like and the main body device 10 may be connected by a cable and the bone mass obtained by the DXA or the like may be input to the main body device 10, or the bone mass obtained by the DXA or the like may be displayed or printed out. Alternatively, the bone mass may be manually input from a keyboard provided on the main body device 10 by observing the displayed or printed bone mass.

[0047]

As described above, according to the first aspect of the present invention, since a high frequency signal having a frequency with good conductivity is used for a blood vessel portion (including capillaries), an adult disease with a single frequency is used. The screening index can be estimated and calculated. In addition, the internal impedance can be easily measured by the self-confidence of the subject, the visceral fat amount and ratio can be measured, and the type of obesity can be determined. The size is small, the weight is low, the measurement accuracy is good, and it is easy for individuals and ordinary households. It is possible to obtain a health management guideline advice device that can be used for.

According to the second aspect of the present invention, by estimating and calculating the basal metabolic rate as an adult disease screening index based on the lean body mass and bone mass, it is generally referred to as internal organs and muscles. The amount of the heat source that is known has a high correlation value with the fat free mass, and the basal metabolic rate is determined by the amount of the heat source and the body surface area. It is possible to easily estimate from this.

According to the third aspect of the present invention, by using the tomographic image information of the body as the estimation criterion of the adult disease screening index, it is possible to more easily provide the adult disease screening index which is highly recognized in the medical community. You can

[Brief description of drawings]

FIG. 1 is an external perspective view of a health management guideline advice apparatus showing an embodiment of the present invention.

FIG. 2 is a diagram illustrating a usage state of the apparatus of the same embodiment.

FIG. 3 shows a foot electrode portion that constitutes the device of the same embodiment,
It is sectional drawing in line AA of FIG.

FIG. 4 is a block diagram showing a circuit configuration of a part of the device of the same embodiment.

FIG. 5 is a block diagram of a circuit configuring the device of the same embodiment together with the circuit of FIG.

FIG. 6 is a diagram illustrating another usage state of the device of the same embodiment.

FIG. 7 is a circuit diagram showing a connection state in a left hand-left foot impedance measurement mode in the device of the same embodiment.

FIG. 8 is a circuit diagram showing a connection state in a two-handed impedance measurement mode in the device of the same embodiment.

FIG. 9 is a circuit diagram showing a connection state in an impedance measurement mode between both legs in the apparatus of the same embodiment.

FIG. 10 is a circuit diagram showing a connection state of a right hand-left foot impedance measurement mode in the device of the same embodiment.

FIG. 11 is a circuit diagram showing a connection state in a left hand-right foot impedance measurement mode in the device of the same embodiment.

FIG. 12 is a circuit diagram showing a connection state in a both-hands and both-feet impedance measurement mode in the device of the same embodiment.

FIG. 13 is a diagram for explaining the principle of the bioimpedance method.

FIG. 14 is an in vivo equivalent circuit for illustrating impedance measurements used to estimate waist / hip ratios.

FIG. 15 is a flowchart for explaining a measurement operation of the apparatus of the same embodiment.

FIG. 16 is a flowchart for explaining the measuring operation of the apparatus of the embodiment, together with the flowchart of FIG.

FIG. 17 is a flowchart for explaining the measurement operation of the apparatus of the embodiment, together with the flowcharts of FIGS. 15 and 16.

FIG. 18 is a diagram for explaining conventional bioelectrical impedance measurement.

FIG. 19 is a diagram illustrating attachment of electrodes to a hand and a foot in conventional bioimpedance measurement.

[Explanation of symbols]

 17, 18 High-frequency signal applying electrode for hands 19, 20 Resistance potential measuring electrode for hands 21 High-frequency signal generating part 32 Electrode signal switching part 55, 56 High-frequency signal applying electrode for feet 57, 58 Resistance for feet Electrodes for potential measurement

Claims (3)

[Claims] 1. A portable main body, and first electrodes for applying high-frequency signals, which are formed on both ends of the main body, respectively.
A left hand grip and a right hand grip provided with a second electrode for measuring a body resistance potential, a first electrode for applying a high-frequency signal, and a first electrode for measuring a body resistance potential, which are connected to the main body by a cable. A foot electrode portion having two electrodes, a high frequency signal generating means for generating a high frequency signal having a frequency with good conductivity to the blood vessel portion, the first electrode, the second electrode
The high-frequency signal from the high-frequency signal generating means is applied to the first electrodes of arbitrary two parts of the plurality of biological parts in which the respective electrodes are arranged, and the high-frequency signals are derived from the second electrodes of the two parts. An adult disease screening index is estimated on the basis of impedance measuring means for measuring the impedance between the two parts by the potential and impedance information between the parts measured by the impedance measuring means and body-specific information separately input. A health management guideline advising device, characterized in that it is provided with means for calculating. 2. A portable main body, and first electrodes for applying high frequency signals formed on both ends of the main body, respectively.
A left hand grip and a right hand grip provided with a second electrode for measuring a body resistance potential, a first electrode for applying a high-frequency signal, and a first electrode for measuring a body resistance potential, which are connected to the main body by a cable. A high-frequency signal generating means for generating a high-frequency signal, and a plurality of living body parts in which the first electrode and the second electrode are respectively arranged in the body portion. Impedance measurement for applying a high-frequency signal from the high-frequency signal generating means to the first electrode of any two parts of the above, and measuring the impedance between the two parts by the potential derived from the second electrode of the two parts. Means and the fat information of the living body is calculated based on the impedance information between the respective parts measured by the impedance measuring means and the body specification information separately input, and further the fat free mass obtained by subtracting the bone mass from the fat free mass. Based on the amount information and the body specifying information, the health management guideline advising device characterized by comprising a means for estimating and calculating the basal metabolism of the adult screening indicator. 3. The health management guideline advising device according to claim 1, wherein the estimation standard of the adult disease screening index is tomographic image information of the body.