JP2002095643A - Device of measuring body fat and method of measuring percent of body fat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device of measuring body fat and a method of measuring percent of body fat which can calculate energy to be consumed variably during dieting. SOLUTION: After carrying out steps from S4 through S11, a difference of day between the day to achieve a target stored at step S3 and the current day is calculated by subtracting the current day from the day to achieve a target (Step S4). Energy to be consumed per day is calculated (Step S11). If energy to be consumed by the day to achieve the target is 36,000 kcal, and the difference of day is 30 days at the point, 1,200 kcal is obtained as the energy to be consumed per day by getting 1,200 kcal as an answer of dividing 36,000 by 30. When a remeasurement is directed at step S12, a process from the step S4 is repeated. The energy to be consumed per day at a point of remeasurement is calculated repeatedly and displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body fat measuring device and a body fat measuring method having a diet program function.

[0002]

2. Description of the Related Art A conventional body fat measuring apparatus having a diet program function includes a body fat measuring section using a four-terminal electrode method, an input section, a calculating section, a display section, and the like. Then, after measuring the body fat percentage in the body fat measurement unit, when a target period of body fat percentage, one month, three months, etc. is input in the input unit, the total energy to be consumed by the calculation unit and the per day Is calculated and displayed on the display unit. Therefore, the user confirms the energy to be consumed per day displayed on the display unit, and performs an exercise corresponding to the consumption of the energy, so that the target body fat percentage is achieved within the target period. Diet is achieved.

[0003]

However, it is generally difficult to carry out a daily exercise corresponding to the energy to be consumed per day when a diet is performed. The amount of exercise per day is also different. Therefore, the degree of achievement of the target in the middle of the period also differs, and the energy to be consumed per day in the remaining period changes according to the degree of achievement of the target at that time.

However, in the above-mentioned body fat measuring device, only the energy to be consumed per day within the target period is calculated and displayed. Therefore, if you are serious about dieting and exercise more than the energy you should consume per day, conversely, if you do not seriously work on diet and only exercise less than the energy you should consume per day, Even so, there is no change in the displayed value of energy to be consumed per day. For this reason, even if the user looks at the displayed value of energy to be consumed per day, it is not a stimulus for exercising for a diet.

The present invention has been made in view of such conventional problems, and provides a body fat measurement device and a body fat measurement method capable of variably calculating energy to be consumed during a diet. It is intended for that purpose.

[0006]

According to a first aspect of the present invention, there is provided a body fat measuring device for measuring a body fat percentage, and a setting for setting an actual target date. Means, a difference day calculating means for calculating a difference day between the realization target day and the current day, and calculating energy to be consumed per day by the realization target day based on the difference day and the body fat percentage. Energy consumption calculating means. Therefore, you can set a realization target date at any time,
When the body fat percentage is measured, energy to be consumed per day by the realization target date is calculated.

In the body fat measuring device according to the present invention, the difference date calculating means and the energy consumption calculating means perform the calculation each time the measuring means measures the body fat. Do. Therefore, when the body fat percentage is measured at any time after setting the realization target day and starting the diet, the daily consumption according to the number of days until the degree realization target day is calculated based on the body fat percentage at that time. The energy to be calculated is calculated.

[0008] In the body fat measuring device according to the third aspect of the present invention, the energy consumption calculating means may include:
The fat amount corresponding to the body fat percentage is calculated, and the energy to be consumed per day required to consume the fat amount by the realization target date is calculated. That is, the energy consumption calculating means calculates the amount of energy to be consumed per day by calculating the fat amount corresponding to the fat percentage and dividing the calculated amount by the number of days up to the actual target date.

Further, the body fat measuring device according to the invention of claim 4 further comprises display means for displaying a calculation result of the energy consumption calculating means. Therefore, the subject can diet while checking the energy to be consumed per day as needed.

According to a fifth aspect of the present invention, in the method for measuring body fat, a measuring step of measuring a body fat percentage, a setting step of setting a realization target date, and a step of setting the realization target date and the current date are performed. And a consumed energy calculation step of calculating energy to be consumed per day by the realization target date based on the difference date and the body fat percentage.

Further, in the body fat measuring method according to the invention, the difference day calculating step and the energy consumption calculating step are repeatedly executed each time the body fat is measured in the measuring step. .

Therefore, by causing a computer to execute the processing in the steps described in claims 5 and 6, it is possible to obtain the same effects as the inventions described in claims 1 and 2. Therefore, by executing the processing described using hardware such as a general-purpose computer, the body fat measurement technique of the present invention can be easily implemented with these hardware.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. This body fat measuring device has the same external configuration as a wristwatch, and is locked to a case 1 and opposing sides of the case 1. And a pair of belts 16, 17. Key input sections 51, 52, 53, 54 are provided on the other opposite sides of the case 1. On the front side of the case 1, as shown in FIG. 1A, a display unit 4 composed of an LCD is arranged at the center, and a pair of electrodes 2 and 3 are arranged near the belt 17.

The pair of electrodes 2 and 3 has one electrode 2 for outputting a high-frequency current and the other electrode 3 for detecting a voltage.
By arranging them at appropriate intervals, they are insulated from each other. In addition, a pair of electrodes 6 and 7 are provided on the back side of the case 1 as shown in FIG. The pair of electrodes 6 and 7 are insulated from each other by being arranged at an appropriate interval, with one electrode 6 for outputting a high-frequency current and the other electrode 7 for detecting a voltage.

FIG. 2 is a block diagram showing a circuit configuration of the body fat measurement device according to the present embodiment, which is disposed in the case 1. As shown in FIG. In this block diagram, the oscillation circuit 1
5 and a V / I circuit are high-frequency current generation circuits (specifically, 15 is an oscillation circuit, and V / I circuit 14 is a circuit that generates a high-frequency current from the AC voltage oscillated by the oscillation circuit). The V / I circuit 14 is a high-frequency current output electrode 2,
6 is connected. The voltage detection electrodes 3 and 7 are
A signal amplifier 11 including a filter, a progressive integrator 12, A /
It is connected to the CPU 10 via the D converter 13. C
The PU 10 includes the key input units 51 to 54 and the display unit 4.
Are connected, and the RAM 8 and the ROM 9 are connected. The CPU 10 controls the display of time information generated by the clock unit 16 and the measurement of body fat by mode switching by executing a time information display process and a body fat measurement process described below in accordance with a program stored in the ROM 9. Things.

The RAM 8 is provided with a display register 801 as shown in FIG.
816 are provided. In the areas 802 to 805, the age, sex, height, and weight of the subject input by the subject operating the key input units 51 to 54 are stored. An area 806 stores the current date measured by the clock unit 16, and an area 807 stores an actual target date which is a target date for completing a desired diet input by the subject. An area 808 stores a difference date between the actual target date and the current date.

An area 809 stores a target weight, which is a weight value to be achieved by the actual target date input by the subject, and an area 810 stores the target weight by the actual target date input by the subject. The target body fat percentage which is the body fat percentage to be realized is stored. An area 811 stores a target body fat mass corresponding to the target body fat percentage, and an area 512 stores a body fat percentage, which is the current body fat percentage of the subject measured as described later. Is stored. The area 513 stores the body fat mass corresponding to the body fat percentage.
4 stores the amount of fat to be consumed by the CPU 8 by the realization target date. The area 815 stores the energy to be consumed by the realization target date corresponding to the fat amount to be consumed by the realization target date, and the area 806 stores the energy to be consumed by the realization target day by the difference date. The energy to be consumed per day, which is the value obtained by dividing by, is stored.

In the present embodiment having the above configuration, when the clock mode is set, the current time is displayed on the display unit 4 based on the time information of the clock unit 16. Then, when a predetermined key operation is performed to switch the mode to set the body fat mode, the CPU 10 operates according to the flowchart shown in FIG. That is, the subject's age, gender, and height data input by operating the key input units 51 to 54 are stored in the area 8 of the RAM 8.
02, 803, and 804 (step S1). In addition, the target weight and body fat, for example, the target weight “55”
When the user inputs "kg" and the target body fat percentage "20%", the target body weight and the target body fat percentage are stored in the areas 809 and 810 (step S2).

Next, when the subject inputs the realization target date, the realization target date is stored in the area 807 of the RAM 8 (step S3). In other words, if the current date is "August 31" and the subject is "September 30" as the target date for achieving the diet, the key input units 51 to 54 are operated to set "September 30". When "30 days" is input, this is stored in the area 807.

Subsequently, the CPU 8 proceeds to step S3.
Then, “realization target date−current date”, which is a difference date between the realization target date stored in step (1) and the current date measured by the clock unit 16, is calculated and stored in the area 808 of the RAM 8 (step S4). Therefore, as described above, the realization target date is “9
If the current date is "August 31" in "month 30", "30 day" will be stored in the area 808 as the difference date. Further, when the current weight is input, the value is displayed in an area 80.
5 (step S5).

Thereafter, measurement of body fat is started (step S6). When performing body fat measurement, the subject wears the body fat measurement device on his left arm with belts 16 and 17. As a result, the electrodes 6 and 7 on the back surface contact the skin of the left arm of the subject. In this mounting state, the fingers of the right hand are brought into contact with the electrodes 2 and 3 on the front side, respectively. As a result, as shown in FIG. 2, the high-frequency current output electrodes 2 and 6, the voltage detection electrodes 3 and 7, and the human body of the person to be measured form a loop and conduct. In this state, the potential between the voltage detection electrodes 3 and 7 is taken out, the body impedance is obtained from the taken out potential between the voltage detection electrodes 3 and 7, and the body impedance and the height and the step stored in the step S1 are obtained. Based on the weight stored in S5, a known calculation is performed to calculate the actual body fat percentage, which is the current body fat percentage, and stored in the area 812 (step S5).
7).

Further, the body fat amount is calculated based on the body fat percentage and the weight calculated in step S7,
13 (step S8). That is, the subject's weight is “60 kg”, and the body fat percentage is 25%.
Assuming that the body fat amount is “60 × 0.25 = 15
kg ”, and“ 15 kg ”is stored in the area 813.
Next, the amount of fat and energy to be consumed by the target date are calculated (step S9).

That is, as described above, the current body fat mass of the subject is “15 kg”. The target body weight is “55 kg” and the target body fat percentage is “20%”, so the target body fat amount is “55 × 0.2 = 11 kg”.
It is. Therefore, the amount of fat that must be burned by the actual target date is “15-11 = 4 kg”.
In general, it is said that in order to burn 1 g of fat, it is necessary to consume 9 kcal of energy. Therefore, to burn 4 kg of fat, "4,0
00 × 9 = 36,000 kcal ”of energy must be consumed. Therefore, in this example, in this step S9, “4 kg” is calculated as the amount of fat to be consumed by the realization target date and stored in the area 814,
Energy to be consumed by the realization target date is “36,
000kcal ”is calculated and stored in the area 815.

Further, the energy to be consumed per day is calculated (step S11). In other words, the energy to be consumed by the realization target date is “36,000 kca
l ”and the difference date at this point is“ 30 days ”, so“ 36,000，30 = 1,200 kcal ”
And the energy to be consumed per day is "1,
“200 kcal” is calculated and stored in the area 816.
Thereafter, display processing is performed (step S11).

In this display processing, as shown in FIG. 5A, the difference value A, the energy B to be consumed by the realization target date, and the energy C to be consumed per day are displayed on the display unit 4. After confirming the display of A, B, and C, the subject starts exercising to achieve the target and exercises for a certain period. During this time, the CPU 8 determines in step S12
The loop of → S13 → S12 is repeated, and when the realization target date has elapsed, the process proceeds from step S13 to the end.

Therefore, when the user performs exercise at an arbitrary point in time until the realization target day elapses, for example, for 10 days, and operates the key input units 51 to 54 to instruct re-measurement, the process proceeds from step S12 to step S4. The processing from step S4 is repeated. Therefore, the difference date calculated in step S4 is “20 days”, the current weight input in step S5 is “57 kg”, and the body fat percentage calculated in step S7 is “22%”. ”, The body fat amount is“ 57 × 0.22 = 12.54k ”.
g ".

Next, the amount of fat and the energy to be consumed by the target date are calculated (step S9). That is, as described above, the current body fat mass of the subject is "12.
45 kg ". Further, as described above, since the target body fat amount is “55 × 0.2 = 11 kg”, the fat amount that must be burned by the actual target date is “12.
45-11 = 1.45 kg ". Therefore, 1.
To burn 45 kg of fat, "1,450 x
9 = 13,050 kcal "of energy. Therefore, in step S9, “1.45 kg” is calculated as the amount of fat to be consumed by the realization target date and stored in the area 814, and “13,050 kcal” is calculated as the energy to be consumed by the realization target date. Then, it is stored in the area 815.

Further, the energy to be consumed per day is calculated (step S11). That is, the energy to be consumed by the realization target date is “13,050 kca
l ”, and the difference date at this point is“ 20 days ”, so“ 13,050 ÷ 20 = 652 kcal ”, and the energy to be consumed per day is“ 652 k
cal ”is calculated and stored in the area 816. Thereafter, display processing is performed (step S11). By this display processing, the difference value A is displayed on the display unit 4 as shown in FIG.
Is displayed, “13,050 kcal” is displayed as the energy B to be consumed by the realization target date, and “6,” as the energy C to be consumed per day.
52kcal "is displayed.

Here, as can be seen by comparing the energy C to be consumed per day in FIGS. 5A and 5B, the energy C to be consumed per day has a difference date of “30 days”. The difference date is “2” from a certain point (a).
The time (b), which is “day 0”, is smaller. In other words, the subject is serious about the diet and exercises more than the energy to be consumed per day, so that the energy to be consumed per day until the target is achieved is reduced. By looking at, it is possible to recognize that one's own diet is progressing better than expected.

Further, after exercising for a certain period of time, for example, 20 days, when the key input sections 51 to 54 are operated to instruct re-measurement, the process proceeds from step S12 to step S4, and the processing from step S4 is performed. Repeatedly, the difference date calculated in step S4 is “10 days”. But,
During this time, the subject did not work on the diet seriously,
Assume that you have exercised less than the energy to be consumed per day. In this case, the weight increases, the current weight input in step S5 is “58 kg”, and the actual body fat percentage calculated in step S7 is “23”.
% ”, The body fat amount is“ 58 × 0.23 =
13.34 kg ".

Next, the amount of fat and the energy to be consumed by the target date are calculated (step S9). That is, as described above, the current body fat mass of the subject is "13.
34 kg ". Further, as described above, since the target body fat amount is “55 × 0.2 = 11 kg”, the fat amount that must be burned by the actual target date is “13.
34-11 = 2.34 kg ". Therefore, 2.
In order to burn 34 kg of fat, "2,340 x
9 = 21,060 kcal "of energy. Therefore, in step S9, “2,34 kg” is calculated as the fat amount to be consumed by the realization target date and stored in the area 814, and “21,060 kcal” is calculated as the energy to be consumed by the realization target date. Then, it is stored in the area 815.

Further, the energy to be consumed per day is calculated (step S11). That is, the energy to be consumed by the realization target date is “21,060 kca
l ”and the difference date at this point is“ 10 days ”, so“ 21,060 / 10 = 2,106 kcal ”
The energy to be consumed per day is "2,
106 kcal ”is calculated and stored in the area 816.
Thereafter, display processing is performed (step S11). By this display processing, as shown in FIG. 5C, “10 days” is displayed on the display unit 4 as the difference value A, and “21,060 kca” is displayed as the energy B to be consumed by the realization target date.
l "is displayed, and" 2,106 kcal "is displayed as the energy C to be consumed per day.

Here, as can be seen by comparing the energy C to be consumed per day in FIGS. 5B and 5C, the energy C to be consumed per day has a difference date of “20 days”. The difference date is “1” from a certain point (b).
The time (c), which is “day 0”, is larger. That is, since the subject has neglected his dieting effort, the energy to be consumed per day until the target is achieved has increased. Therefore, by looking at this value, it was recognized that the diet effort was neglected,
Thereafter, the diet can be led to success by increasing the amount of exercise and making a diet effort.

In the present embodiment, the weight is input by a key. However, if the weight scale is integrated, the input of the weight becomes unnecessary, and the usability can be improved. In the present embodiment, the watch is a wristwatch type.
Of course, it may be of a stationary type.

[0035]

As described above, according to the present invention, the energy to be consumed per day by the realization target date is calculated based on the difference day between the realization target date and the current date and the body fat percentage. Thus, the energy to be consumed per day by the realization target date at any time can be calculated.
Therefore, based on the energy to be consumed per day by the calculated realization target date, it is possible to determine whether the progress of the diet is good or not, and to obtain a target value corresponding to a real state, Thereby, a stimulus for performing exercise for the purpose of dieting is given, and the success rate of dieting can be increased.

[Brief description of the drawings]

FIG. 1A is a plan view of a body fat measurement device according to a first embodiment of the present invention, and FIG. 1B is a rear view thereof.

FIG. 2 is a circuit diagram of the body fat measurement device according to the embodiment.

FIG. 3 is a memory configuration diagram of a RAM.

FIG. 4 is a flowchart showing a processing procedure.

FIG. 5 is a diagram showing a display example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 1a Case main body 1b Lid 16, 17 Belt 2, 3 electrodes 4 Display part 6, 7 electrodes 10 CPU

Claims (6)

[Claims] A measuring means for measuring a body fat percentage; a setting means for setting a realization target date; a difference day calculating means for calculating a difference day between the realization target date and a current day; A body fat measuring device, comprising: a consumed energy calculating unit that calculates energy to be consumed per day by the realization target date based on the body fat percentage. 2. The body fat measurement device according to claim 1, wherein the difference day calculation unit and the energy consumption calculation unit perform the calculation each time the measurement unit measures the body fat. 3. The energy consumption calculating means calculates a fat amount corresponding to the body fat percentage and calculates an energy to be consumed per day necessary to consume the fat amount by the realization target date. The body fat measurement device according to claim 1, wherein the measurement is performed. 4. The body fat measurement device according to claim 1, further comprising a display unit that displays a calculation result of the energy consumption calculation unit. 5. A measuring step for measuring a body fat percentage, a setting step for setting a realization target date, a difference day calculating step for calculating a difference day between the realization target date and a current day, Calculating an energy to be consumed per day by the realization target date based on the body fat percentage. 6. The body fat measurement method according to claim 5, wherein the difference day calculation step and the energy consumption calculation step are repeatedly performed each time the body fat is measured in the measurement step.