JP4279502B2 - Body fat measuring device for pregnant women - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for measuring body fat, and more particularly to an apparatus for measuring body fat of a pregnant woman.
[0002]
[Prior art]
The conventional body fat measuring device can measure from a child to an elderly person in terms of age, but cannot measure a pregnant woman. Moreover, the change in fat during pregnancy can be seen by observing the change in subcutaneous fat with an ultrasonic subcutaneous fat thickness meter, caliper, or the like.
[0003]
[Problems to be solved by the invention]
In the case of using the conventional caliper method, skill is required for measurement, and there is a variation in measurement due to individual differences in how fat is applied by pregnant women.
[0004]
[Means for Solving the Problems]
According to one aspect of the present invention, in an apparatus for measuring body fat percentage or body fat mass by a bioelectrical impedance method, first input means for inputting personal data of a person to be measured such as height and weight, and fetal part Body fat for the pregnant woman, comprising: second input means for inputting the weight of the body weight; and calculation means for calculating the body fat percentage or body fat mass by subtracting the weight input by the second input means from the weight of the first input means A measuring device is provided.
[0005]
According to another aspect of the present invention, in a device for measuring body fat percentage or body fat mass by a bioelectrical impedance method, first input means for inputting personal data of a person to be measured such as height and weight, and fetal part Second input means for inputting the weight of the body, calculation means for subtracting the body weight input by the second input means from the weight of the first input means, and calculating a body fat percentage or body fat mass, and a body based on the number of weeks of pregnancy There is provided a body fat measurement device for pregnant women provided with a determination means for determining a fat fat percentage or a body fat amount.
[0006]
According to another aspect of the present invention, in a device for measuring body fat percentage or body fat mass by a bioelectrical impedance method, first input means for inputting personal data of a person to be measured such as height and weight, and fetal part Second input means for inputting the weight of the body, calculation means for subtracting the body weight input by the second input means from the body weight of the first input means, and calculating the body fat percentage or body fat mass, There is provided a body fat measurement device for pregnant women provided with a determination means for determining a fat fat percentage or a body fat amount.
[0007]
According to another aspect of the present invention, in a device for measuring body fat percentage or body fat mass by a bioelectrical impedance method, first input means for inputting personal data of a person to be measured such as height and weight, and fetal part Second input means for inputting the weight of the body, calculation means for subtracting the body weight input by the second input means from the body weight of the first input means, and calculating a body fat percentage or body fat mass, and body fat based on the fetal weight There is provided a body fat measurement device for pregnant women provided with a determination means for determining a fat percentage or a body fat amount.
[0014]
According to another embodiment of the present invention, the weight of the fetal portion includes fetal body weight, amniotic fluid weight, and placental weight.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a body fat measuring device 1 according to the present invention, which mainly includes a measuring unit 2 and a display printing unit 3, and is fixed to a base plate (not shown) and the display printing unit 3 of the measuring unit 2. It consists of a column part 4.
[0016]
The measurement unit 2 has a configuration similar to that of a known body fat scale, includes a weight measurement sensor therein, and can measure the weight by placing a person to be measured on the upper surface of the measurement unit 2. Moreover, current supply electrodes 5A and 6A and voltage measurement electrodes 5B and 6B are provided on the upper surface of the measurement unit 2 in order to measure the bioelectric impedance between both feet.
[0017]
On the other hand, the display printing unit 3 includes an operation unit 7 shown in FIG. 2, a display unit 8 for displaying input data and results, and a printing unit 9 for printing measurement results.
[0018]
2 includes a power switch 10, a tare amount setting key 11 for setting the weight of the person to be measured, a key 12 for setting date and time, a key group 13 for setting gender and body type, data, and the like. A numeric keypad 14 for setting is provided.
[0019]
FIG. 3 shows an electrical block diagram of the body fat measurement device 1, which includes a control unit 15 having a microcomputer, to which the switches and keys of the operation unit 7 in FIG. The unit 8 and the printing unit 9 are also connected.
[0020]
Further, from the measurement unit 2, the current supply electrodes 5A and 6A are connected to the control circuit 15 via the constant current generation circuit 16, the voltage measurement electrodes 5B and 6B are connected to the control circuit 15 via the voltage measurement circuit 17, respectively. ing.
[0021]
Furthermore, a memory 18 for storing data is connected to the control circuit 15, and a clock circuit 19 for generating date data such as the number of pregnancy weeks is also connected.
[0022]
The power supply 20 supplies power to each unit.
[0023]
Next, operation | movement of the body fat scale 1 of this invention is demonstrated using the flowchart of FIG. When the power switch 10 is first turned on, the control circuit 15 initializes the microcomputer, the memory 18 and the like in step S1. Next, it is determined whether or not the date and time is set in step S2, and if it is set, the process proceeds to step S4. If the date is not set, the date is set in step S3. Since the date and time setting is the same as that used in a general apparatus, detailed description thereof is omitted.
[0024]
In step S4, the display unit 8 displays "Please input the clothing weight, that is, the tare amount from the numeric keypad 14, and press the tare amount setting key 11 when the input is completed". When the person to be measured inputs 1.0 kg from the numeric keypad 14 and turns on the tare amount setting key 11, it is determined Yes in step S 5, and the process proceeds to step S 6 to store the tare amount in the memory 18. If the tare amount setting key 11 is not turned on in step S5, the process returns to step S4, and the display prompting the input of the tare amount is repeated.
[0025]
Next, in step S7, the key group 13 for setting the gender / body type is displayed on the display unit 8 so as to turn on the key corresponding to the subject. If the person to be measured is a male standard, for example, the standard key is turned on in the frame of the male mark in FIG. Then, the input is determined in step S8, and the process proceeds to step S9, where the data of the key that is turned on is stored in the memory 18. In step S8, the process returns to step S7 until the key is turned on, and continues to prompt the key to be turned on.
[0026]
Similarly, in steps S10 to S12, the age of the person to be measured is input, and in steps S13 to S15, the height of the person to be measured is input and stored in the memory 18.
[0027]
In step S16, it is determined what the key turned on in step S8 is. In this case, since it is a male standard, it is determined No and the process proceeds to step S17.
[0028]
In step S17, measurement is started after confirming that the person to be measured has got on the measuring unit 2 with the toes on the current supply electrodes 5A and 6A and the heels on the voltage measurement electrodes 5B and 6B. For the measurement of the body weight, the output from the body weight sensor is taken into the control unit 15 and is calculated in step S18. On the other hand, as for the impedance, a constant current is passed from the constant current circuit 16 to the electrodes 5A, 6A, the voltage between the electrodes 5B, 6B is measured by the voltage measurement circuit 17, and the impedance is calculated in step S18 from the relationship between the current and voltage. . In step S18, the tare amount is subtracted from the measured body weight, the body weight of the subject is calculated, the body fat percentage is calculated from the impedance, the body fat percentage is multiplied by the body weight, and the body fat mass is calculated from the body weight. Are subtracted to calculate the lean body mass, the lean body mass is multiplied by the average body moisture percentage of 73.2%, and the body water content is calculated from the height and weight, and the BMI (physique index) is calculated.
[0029]
The calculation result is displayed on the display unit 8 and printed out from the printing unit 9 in step S19. FIG. 5 is an example of display and printout on the display unit 8, in addition to the measurement time, personal data such as sex / body type, age, height, etc., the results of measurement / calculation in steps S17 and S18 are displayed and displayed. Printed.
[0030]
After this display and printing, the process returns to step S4 and waits for the next data input.
[0031]
If the maternity key is turned on in step S8, it is determined Yes in step S16, and the process proceeds to step S20. In step S20, the display unit 8 displays that the expected date of delivery should be entered, and steps S20 and S21 are repeated until the date of the month / day is entered from the numeric keypad in step S21.
[0032]
When the scheduled date is input, it is determined Yes in step S21, and the number of weeks of pregnancy is calculated from the scheduled delivery date and measurement date data input in step S22, and stored in the memory 18 in step S23.
[0033]
In the case of maternity, the processing in step S17 is the same as in the normal case. However, in the data calculation in step S18, what is added compared to the normal case is as follows.
[0034]
The fetal body weight, amniotic fluid weight, and placenta weight are read from the gestational week from the graph shown in FIG. 6 (data is stored in the memory 18), and the fetal partial weight is further subtracted from the measured body weight obtained by subtracting the tare amount. The subtracted body weight is obtained, and the body fat percentage, the body fat mass, the lean body mass, and the body water content are calculated based on the body weight.
[0035]
The result is displayed on the display unit 8 in step S19 and printed out by the printing unit 9. As shown in FIG. 7, the display unit 8 and the example of the printout are subtracted from the example of FIG. 5 as the pre-correction body weight (the tare amount is subtracted) before subtracting the number of weeks of pregnancy and the weight of the fetus. A post-correction BMI is calculated based on the post-correction body weight print, fetal body weight, amniotic fluid weight, placenta weight, weight before subtracting the fetal weight (the tare amount is subtracted) and height. The pre-correction BMI is calculated and displayed or printed in order to provide data to an obstetrician / gynecologist who determines the growth status of the fetus based on the pre-correction BMI value.
[0036]
Similarly, in order to provide data, the printout example shown in FIG. 7 or added to the display on the display 8, the non-pregnant BMI and the weight before correction at the time of measurement are calculated. The subtracted weight gain may be printed or displayed.
[0037]
When this display / printing step S19 ends, the process returns to step S4 to wait for the next data input.
[0038]
In the maternity display, the body fat percentage is shown only as a numerical value, but the relationship between the number of gestational weeks and the appropriate fat percentage rises in the early pregnancy and slightly decreases in the last trimester as shown in FIG. Therefore, the data of this graph is stored in the memory 18, and after calculating the body fat rate in step S18, the body fat rate is determined to be insufficient, appropriate, excessive, etc. according to the number of weeks of pregnancy, and based on the determination When advice is displayed or printed, it is easy for pregnant women to know how to deal with it.
[0039]
In addition, in the above maternity display, in FIG. 8, judgment and advice on underage, appropriateness, overage, etc. were made based on the relationship between the number of pregnancy weeks and body fat percentage, but based on the relationship between the number of pregnancy weeks and body fat mass. As in the case of FIG. 8, judgment and advice such as insufficient, appropriate, and excessive may be performed. In this case, as shown in FIG. 10, FIG. 11, and FIG. 12, the body type at the time of non-pregnancy is thin type (BMI is less than 18), standard type (BMI is 18 or more and 24 or less), obesity (BMI is more than 24). The appropriate range is different. In these figures, the center graph shows the center value of the appropriate body fat mass, the upper graph shows the upper limit value of the appropriate body fat mass, and the lower graph shows the lower limit value of the appropriate fat mass. Therefore, if a non-pregnant BMI is input in steps S7 to S15 in FIG. 4 and a body fat amount exceeding the above graph is measured, the body is displayed on the display unit 8 or printed out on the printing unit 9. Advice is given that this is the preferred dietary menu with excessive fat.
[0040]
Further, in addition to the determination of the body fat percentage and the body fat amount shown in FIGS. 8, 10, 11, and 12, non-pregnant BMI is input in steps S7 to S15 in FIG. As shown in the figure, the amount of increase in body fat for each gestational week is calculated in step S18 of FIG. 4 for each body type by BMI during non-pregnancy. It can also be printed. In this case, an obese pregnant woman has to reduce the body fat amount after 28 weeks of gestation, but if not, advice and advice to reduce it are displayed and printed.
[0041]
Next, a second embodiment of the present invention will be described. In the second embodiment, the configuration and the electric block diagram are the same as those in FIGS. 1 to 3 of the first embodiment, and steps S24, S25, and S26 are added after step S23 in FIG. Street. In this example, fetal body weight, amniotic fluid weight, and placental weight of the fetal body weight, in which the fetal body weight was automatically input according to the number of gestation weeks in FIG. The value is manually input from the numeric keypad in step S25, stored in the memory 18, and the input weight is used when calculating in step S18. As a method of obtaining the fetal weight by this ultrasonic tomography method, the method of obtaining by the Osaka University method from the three parameters of the fetal head large transverse diameter, the trunk area, and the femur length from the ultrasonic measurement, the fetal trunk circumference diameter, and around the trunk There is the University of Tokyo method using a diameter. At this time, the amniotic fluid weight and the placenta weight are automatically input from the number of gestational weeks using FIG.
[0042]
When determining the body fat percentage or the body fat mass in the second embodiment, the gestational week on the horizontal axis in FIGS. 8 and 10 to 12 in the first embodiment is changed to the fetal weight in the ultrasonic tomography. Thus, the determination can be made in the same manner as in the first embodiment. Other points are the same as in the first embodiment.
[0043]
The fetal body weight can be obtained by ultrasonic tomography, and the amniotic fluid weight and placental weight can be obtained from the fetal body weight. Further, when the amniotic fluid weight is obtained by a known ultrasonic tomography method, an accurate amniotic fluid weight can be obtained even in pregnant women with hyperamniotic fluid or hypoamniotic fluid.
[0044]
Furthermore, a third embodiment of the present invention will be described. The inventors focused on the fact that the uterine floor length (the length of the anterior wall of the abdominal wall from the upper edge of the pubic bone to the uterine floor) increases with the gestational age, and the fetal weight and amniotic fluid weight as shown in FIG. And the placenta weight was found to have a certain relationship with the fundus length. In the third embodiment, the base of the uterus is input after step S23 in FIG. 4 in the first embodiment, and the fetal partial weight (fetal weight, amniotic fluid weight) from FIG. And the total weight of the placenta) are calculated and the body fat percentage, body fat mass, lean mass and body water content are determined in the same manner as in the first embodiment. When the body fat percentage or body fat amount is determined in the third embodiment, the gestational week on the horizontal axis in FIGS. 8 and 10 to 12 in the first embodiment is changed to the uterine floor length. Determination can be made in the same manner as in the embodiment. Other points are the same as in the first embodiment.
[0045]
Further, since it has been found that the amniotic fluid weight, placental weight and fetal weight have the relationship shown in FIG. 15, in the third embodiment, only the fetal weight is obtained from the uterine floor length from FIG. 15 can be used to determine the amniotic fluid weight and placental weight, and the total fetal weight can be determined.
[0046]
Furthermore, in the third embodiment, only the fetal weight is obtained from the uterine floor length from FIG. 14, the amniotic fluid weight and the placenta weight are obtained from the number of gestation weeks using FIG. 6, and the fetal partial weight which is the sum of these is obtained. it can.
[0047]
In the present invention, the fetal body weight, amniotic fluid weight, and placental weight corresponding to the number of gestational weeks are stored in the memory and calculated based on the stored data. Also good.
[0048]
In addition, it is also possible to input the body weight and fetal weight before subtracting the fetal weight from the numeric keypad. In this case, the present invention is also applied to a hand-type fat scale without a weight scale or a card-type fat scale. it can.
[0049]
Further, in the above embodiment, the calculation result is displayed and printed. However, the past history is called from the memory 18, and the graph of the calculation result is displayed on the graphs of FIGS. 8, 10, 11, and 12, and the past results are displayed. Changes may be displayed.
[0050]
Furthermore, in the above embodiment, the fetal partial weight is obtained from the number of weeks of pregnancy, ultrasonic tomography, and uterine floor length, and the body fat percentage and body fat amount are obtained. When the results of these methods are verified, FIG. As shown. This result is based on the assumption that the body fat mass immediately after delivery (described as postpartum) is almost the same as the body fat mass in the second trimester. According to this assumption, the number of weeks of pregnancy (denoted as the number of weeks) is used. When using the tomographic method (described as ultrasound), the amount is almost the same as the postpartum measurement. There was a little more than the measurement. Based on these facts, among pregnancy week, ultrasound tomography, and cervical length, pregnancy week and ultrasound tomography, pregnancy week and cervical length, cervical length and ultrasound tomography, etc. The fetal partial weight can be determined by combining two or three. When these two or three combinations are used, not only the accuracy is improved, but also fetal partial weight measurement errors due to variations in fetal growth due to the constitution and condition of the pregnant woman can be reduced.
[0051]
【The invention's effect】
The present invention relates to a device for measuring a body fat percentage or body fat amount by a bioelectrical impedance method, a first input means for inputting personal data of a person to be measured such as height and weight, and a first input for inputting the weight of a fetus part. A body fat measuring device for pregnant women comprising two input means and a computing means for calculating a body fat percentage or body fat mass by subtracting the weight input by the second input means from the weight of the first input means, Can easily measure body fat percentage or body fat mass.
[0052]
The present invention also relates to a device for measuring a body fat percentage or body fat amount by a bioelectrical impedance method, and a first input means for inputting personal data of a subject such as height and weight, and a weight of a fetus part. A second input means, a calculation means for subtracting the weight input by the second input means from the weight of the first input means, and calculating a body fat percentage or a body fat amount, a pregnancy week, an ultrasonic tomography method or a uterus floor It is a body fat measurement device for pregnant women equipped with a judgment means to determine body fat percentage or body fat amount based on length, and pregnant women can easily measure body fat percentage or body fat mass, and also the number of pregnancy weeks, ultrasonic tomography Judgment can also be made depending on the method or the length of the uterus.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a first embodiment of the present invention.
FIG. 2 is a diagram showing a display printing unit according to the first embodiment of the present invention.
FIG. 3 is an electrical block diagram.
FIG. 4 is a flowchart of the first embodiment.
FIG. 5 is a diagram illustrating an example of printing other than maternity.
FIG. 6 is a diagram showing the relationship between the number of gestation weeks and the weight of the fetus.
FIG. 7 is a diagram illustrating an example of maternity printing.
FIG. 8 is a graph showing the relationship between pregnancy weeks and body fat percentage.
FIG. 9 is a flowchart of the second embodiment.
FIG. 10 is a graph showing lean pregnancy weeks and body fat mass.
FIG. 11 is a diagram showing standard pregnancy weeks and body fat mass.
FIG. 12 is a graph showing obesity-type pregnancy weeks and body fat mass.
FIG. 13 is a graph showing the number of gestation weeks and the increase in body fat.
FIG. 14 is a diagram showing the relationship between the uterine floor length and the fetal partial weight.
FIG. 15 is a diagram showing the relationship between fetal body weight, amniotic fluid and placenta weight.
FIG. 16 is a diagram showing the relationship between the calculation of body fat mass based on the number of gestation weeks, ultrasonic tomography and uterine floor length, and the body fat mass obtained by a conventional fat meter immediately after giving birth.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body fat meter 2 Measuring part 3 Display printing part 5A, 5B, 6A, 6B Electrode 7 Operation part 8 Display part 9 Printing part 12 Date / time setting key 13 Gender / body type setting key 14 Numeric keypad

Claims (3)

And weight measuring means for measuring the weight of the pregnant woman, and input means to enter the weight of the personal data and fetal part of the pregnant women including body height, the weight of the fetal part is subtracted from a pregnant woman Body weight measured by the weight measurement means A body fat measuring device for a pregnant woman that measures a body fat rate of a pregnant woman by a bioelectric impedance method , comprising: a calculating means for calculating a body fat rate by a bioelectric impedance method based on the body weight obtained . And weight measuring means for measuring the weight of the pregnant woman, and input means to enter the weight of the personal data and fetal part of the pregnant women including body height, the weight of the fetal part is subtracted from a pregnant woman Body weight measured by the weight measurement means based on the weight obtained Te, for characterized by having a calculating means for calculating a body fat amount by bioelectrical impedance method, and a calculation means for calculating a body fat amount by bioelectrical impedance method pregnant women Body fat measuring device. The fetal-region weight fetal weight and amniotic fluid weight and prenatal body fat measuring apparatus of Ru claim 1 or claim 2, wherein Na from placental weight.

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