JP2003180665A - Momentum measuring device attached to human body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a momentum measuring device attached to the human body with which an aptitude for an exercise can be evaluated easily and which can show the transition of exercise levels. <P>SOLUTION: A basal metabolic rate B is obtained from the entered body weight and height (ST2 and ST3). A target momentum AN is calculated from the basal metabolic rate B (ST4) and the target momentum AN is displayed on a display 5 (ST5). On the other hand, a measured momentum A is calculated from an output from an acceleration sensor 1 and is displayed (ST8-ST12). Then, a difference AN-A between the target momentum AN and the measured momentum A is calculated and is displayed on the display 5 (ST13). A daily activity index is also obtained every day and its daily transition is displayed (ST17-ST20). <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an exercise amount measuring device mounted on a human body for measuring and displaying the exercise amount of a living body (human body) using an acceleration sensor or the like. 2. Description of the Related Art Conventionally, a momentum measuring apparatus of this type includes an acceleration sensor (for example, a vibrator) for detecting a body motion of a human body, and a momentum for calculating the momentum of the human body based on a signal obtained by the acceleration sensor. Generally, it is provided with a calculating means and a display unit for displaying the calculated amount of exercise. The display unit of the exercise amount measuring device has a display form as shown in FIG. 12, for example. The display unit shown here has a function of setting the weight of the person to be measured, a step length of each of walking and running, a function of displaying accumulated calorie consumption, and the like. [0003] The cumulative calorie consumption here is determined at predetermined time intervals (for example, one minute) according to a speed calculated from a walking (or running) distance and a walking (or running) time by a speed classification set in advance. , A corresponding speed section is selected, calorie consumption is calculated by a calorie consumption calculation formula assigned to the speed section, and the calculated calorie consumption is accumulated. [0004] However, FIG.
The conventional exercise amount measuring device provided with a display unit as shown in Fig. 1 not only measures the amount of exercise (calorie consumption) when exercising, but also simply displays the numerical values of the amount of exercise and total calorie consumption on the display unit. Therefore, there is a problem that it is difficult to judge whether or not one's own exercise is appropriate, and that a change in exercise level is not known. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and provides an exercise amount measuring device to be worn on a human body, which makes it easy to judge the appropriateness of exercise and can know the transition of exercise level. The purpose is to do. [0006] In order to achieve the above object, the present invention provides an exercise amount measuring device worn on a human body, which is obtained by an acceleration sensor for detecting a body movement of a living body, and the acceleration sensor. A movement amount calculating means for calculating the amount of movement of the living body based on the signal, and a display unit for displaying the calculated amount of movement, wherein a remaining target calorie calculation function for calculating the remaining target calorie using the estimated calorie consumption for a predetermined period; A target exercise amount calculation function for calculating a desired target exercise amount for the living body to consume for a predetermined period of time, or a life activity index calculation function for calculating a life activity index from the actually measured exercise amount, the exercise amount, the target value and the actually measured value. Or the time tendency of the life activity index is displayed on the display unit. [0007] In the exercise amount measuring device worn on the human body according to the present invention, since the amount of exercise, the difference between the target value and the actual measurement value, or the time trend of the life activity index is displayed on the display unit, the transition of the exercise level can be easily known. It is easy to judge the suitability of exercise. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a momentum measuring device according to the present invention will be described based on embodiments. FIG. 1 is a block diagram showing the overall configuration of an exercise amount measuring apparatus according to one embodiment. This momentum measuring device,
It is basically the same as the conventional one except for various arithmetic functions and display forms. The acceleration sensor 1 is attached to a human body and detects body movement. The amplification circuit 2 amplifies a signal detected by the acceleration sensor 1. An A / D conversion circuit 3 for converting the amplified signal into a digital signal, a function for calculating the amount of exercise based on the input digital signal, a predetermined period (for example, one day)
The remaining target calorie calculation function that calculates the remaining target calorie using the estimated calorie consumption, the target exercise amount calculation function that calculates the desired exercise amount that the human body desirably consumes for a predetermined period (one day), and the living activity from the actually measured exercise amount MPU 4 having a life activity index calculation function for calculating an index, a display (display section) 5 for displaying gender, age, exercise amount, living activity intensity, etc., a power ON / OFF switch, and a selection for selecting a display type. The power supply circuit 7 includes a switch 6 including a switch, a switch for inputting sex, age, and the like. In this exercise amount measuring apparatus, the amount of exercise and the intensity of daily activities are calculated by various arithmetic functions. The calculation requires a basal metabolic rate, and there are various methods for obtaining the basal metabolic rate. There is a method of obtaining using equation (1). That is, the basal metabolic rate B is as follows: B = B _S × S (1) B _S : Basal metabolic standard value per 1 m ^{2 of} body surface area (kcal /
m ² / h) S: body surface area (m ²⁾ = (determined by weight · kg) ^0.444 × (height · cm) ^0.663 × 0.008883. However, the equation (1) is limited to age of 6 years, also B _S represents the different values by sex, age, a "dietary requirements of the Japanese (5th Revision)" Table II
-1 [see FIG. 2 (table of basal metabolic reference values according to gender and age) and FIG. 3 (graph showing relationship between age and basal metabolic reference values)]. On the other hand, the calculation of the life activity index is performed as follows. The daily total energy metabolism (A) is the energy consumed by exercise or the like (B · χ), the basal metabolism (B), and the metabolism due to the specific dynamic action (0.1 · A;
The energy required to break down and absorb the foods ingested)
Is represented by the following equation (2). (However, χ is a life activity index) A = B · χ + B + (1/10) A (2) By transforming this equation, χ = [(9/10) × (A / B) )]-1... (3) Therefore, the exercise amount actually measured as the total energy metabolism A and the basal metabolism calculated by calculation as the basal metabolism B may be used. The calculated life activity index χ is classified into, for example, four stages according to the intensity of the life activity as shown in FIG. 4, so that it is possible to know the level of exercise. In the ranking of FIG. 4, the living activity intensity I is small and the living activity intensity IV is large. Of course, the ranking need not be limited to four levels, but may be three or less, or five or more. On the other hand, the target amount of exercise is the above-mentioned activity index χ
Is calculated as a target. In this case, the life activity index χ is set to 0.5 as an appropriate value, and the above equation (2) is used. In other words, since the target momentum A is A = Bχ + B + (1/10) A, A = (10/9) ・ (1 + χ) ・ B, and if χ = 0.5, A = 1 .67 × B (4), and the target exercise amount A can be calculated. Next, the display mode of the display screen of the display 5 will be described. First, in the example shown in FIG. 5, the display screen is divided into an upper part 10 and a lower part 11, and the amount of exercise (total calorie consumption, kcal) is displayed on the upper part 10 by numerical values.
The bar shows the average intensity of daily activity over the past week and the past week. Activity intensity is divided into three stages: I (light), II (medium), and III (slightly heavy).
(Medium) is set to the target level. In this display format, the amount of daily activity (total calorie consumption) at the end of the day
And activity intensity are calculated and displayed automatically. Also, the calorie consumption of each day and the activity intensity of each day in the past week (7 days), the average calorie consumption of 7 days and the average activity intensity are displayed. In order to record the calorie consumption and activity intensity for one week, for example, an automatic memory function may be provided.
According to this display mode, the tendency of exercise for the past week can be understood at a glance. FIG. 6 shows a modification of the display mode shown in FIG. This display mode displays the total calorie consumption and the three-step activity intensity in the same manner as shown in FIG. 5, but the total calorie consumption is displayed on the right part 12 of the drawing, and the activity intensity is displayed on the left part 13 of the drawing. Each stage is represented by a different picture. For example, in FIG. 6A, the activity amount of the previous day's life is displayed, and the activity intensity of this activity amount is indicated as I (light). In FIG. 6B, the average total calorie consumption for 7 days is displayed, and the activity intensity is II (moderate).
It turns out that it is. The record of the calorie consumption and the activity intensity for the past seven days can be called up every day by operating the switch 6 or the like. FIG. 7 shows another display mode. In this display format, when you enter your gender, age, height, and weight, the target calorie expenditure that suits you is automatically set and displayed, and the achievement rate of the target calorie expenditure is displayed as a bar graph and picture. You. Here, the target calorie consumption and the total calorie consumption are displayed on the upper part 14 of the display screen, and the target achievement degree is displayed on the lower part 15. For example, if the target calorie consumption is 2400 kcal in FIG. 7, and if the calorie consumption is 2400 kcal as shown in FIG. 8A, the target achievement degree is 100%, and the bar graph and the picture are as shown in FIG. Is displayed. On the other hand, as shown in FIG. 8B, when the calorie consumption is 1528 kcal, the degree of achievement of the target is about 65%, so that the bar graph and the picture are displayed accordingly. FIG. 9 shows another display mode. In this display mode, the target calorie consumption and the total calorie consumption are displayed in the upper part 16 of the display screen, and the exercise time required to reach the target calorie consumption is displayed in the lower part 17. Here, if gender, age, height, and weight are input, a target calorie consumption suitable for each person is set and displayed. In FIG. 9A,
At the time when the calorie consumption is 1928 kcal, it is displayed that it is only necessary to exercise 106 minutes for "walking", 35 minutes for "running", and 59 minutes for "swimming" before consuming the target calorie consumption. Then, by performing such exercise, calories are further consumed, and when the calorie consumption reaches 2028 kcal as shown in FIG. 9 (b), "walking" takes 85 minutes and "runs" until the target calorie consumption is reached. "
It shows that it is sufficient to exercise for 25 minutes and "swim" for 43 minutes. Thus, as the calories are consumed, the exercise time required to reach the target calorie consumption decreases, so that it is easy to know how much more exercise should be performed. In the example shown in FIG. 9, three types of exercise, “walk”, “run”, and “swim”, are shown. However, the present invention is not limited to this, and is shown with more types of exercise. Is also good. For example, ball games such as bicycles, tennis, soccer, and baseball may be added as appropriate. Next, an example of the overall operation of the above-described exercise amount measuring apparatus will be described with reference to the flowcharts of FIGS. First, the power of the apparatus is turned on [Step (hereinafter, S
T) 1), the sex, age, height, and weight of the subject are input (ST2). Then, the basal metabolic rate B is calculated by, for example, the above formula (1) (ST3), and the target exercise amount _AN is calculated from the obtained basal metabolic rate B by using the above formula (4) (ST4). The specified target momentum A _N is displayed on the display 5 as described above (ST5). here,
It is determined whether or not the start switch for starting the measurement has been pressed (ST6). If NO, the process waits until the start switch is pressed, and if YES, the measurement is started (ST7). It goes without saying that the device is attached to the person to be measured before the measurement. When the measurement is started, an initial measurement is performed (ST8), and data on the body movement of the subject is captured by the acceleration sensor 1 (ST9). Next, it is determined whether or not the acquired data has been accumulated for 10 seconds (ST10). If NO, the data acquisition by the acceleration sensor 1 is continued, and if YES, the exercise amount A is calculated using the equation (2). (ST11) and the obtained momentum A
Is displayed (ST12). Subsequently, the difference (A _N -A) between the target momentum A _N and the actually measured momentum A is calculated and displayed (ST1).
3), (A _N -A) / α ₁ is calculated, and the result is displayed (ST14). Here, α ₁ is a constant 3.5 kcal / min when walking. That is, by calculating (A _N −A) / α ₁ , it is determined how much walking exercise should be performed until the target exercise amount is reached. When walking, the difference between the target exercise amount A _N and the measured exercise amount A is calculated. You just have to divide by 3.5 kcal / min. Then, in the next ST15, it is determined whether or not the select switch is pressed, and if it is pressed (A _N −
A) / α ₂ is calculated and displayed (ST16). This α ₂ is a constant of 5 kcal / min when running, and it is required to determine how much exercise should be performed when running. In ST17, 24 hours (1
Day) has passed, and if not, S
The processing from ST9 to ST17 is continued. After 24 hours have passed, a life activity index χ is calculated from the above equation (3) (ST18), and the life activity index is, for example, a life activity index and a life activity intensity set in advance as shown in FIG. (ST19). Subsequently, the data for 24 hours is updated, and the total exercise amount (total calorie consumption) and the daily activity intensity (activity intensity) for 24 hours are displayed (ST20).
Thereafter, the process returns to the initial measurement in ST8, and data acquisition for the next 24 hours is started. Of course, data for 24 hours is recorded in the memory. In the exercise amount measuring apparatus worn on the human body according to the present invention, the exercise amount, the difference between the target value and the actual measurement value, or the time tendency of the life activity index is displayed on the display unit. The transition can be easily known, and the appropriateness of exercise can be easily determined from the transition of the exercise level.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an overall configuration of a momentum measuring device according to one embodiment. FIG. 2 is a table showing basal metabolic reference values per 1 m ² of body surface area according to age and gender. FIG. 3 is a diagram when the table of FIG. 2 is graphed; FIG. 4 is a diagram showing a ranking of a life activity index and a life activity intensity. FIG. 5 is a diagram showing an example of a display form of the exercise amount measuring device according to the embodiment. FIG. 6 is a diagram showing a modification of the display mode shown in FIG. FIG. 7 is a diagram showing another example of the display form of the exercise amount measuring device according to the embodiment. 8 is a diagram showing a display example of the display mode shown in FIG. FIG. 9 is a diagram showing still another example of the display form of the exercise amount measuring device according to the embodiment. FIG. 10 is a flowchart showing an overall operation of the exercise amount measuring device according to the embodiment. FIG. 11 is a flowchart following FIG. 10; FIG. 12 is a diagram showing an example of a display form of an exercise amount measuring device according to a conventional example. [Description of Signs] 1 Acceleration sensor 4 MPU 5 Display (display unit)

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Tsutomu Yamazawa             24 Yamanouchi Yamanoshitamachi, Ukyo-ku, Kyoto             Omron Life Science Laboratory (72) Inventor Masaaki Takenaka             24 Yamanouchi Yamanoshitamachi, Ukyo-ku, Kyoto             Omron Life Science Laboratory

Claims (1)

Claims: 1. An acceleration sensor for detecting a body movement of a living body, a movement amount calculating means for calculating a movement amount of the living body based on a signal obtained by the acceleration sensor, and a display for displaying the calculated movement amount. The exercise amount measuring device mounted on the human body comprising the part, the remaining target calorie calculation function of calculating the remaining target calorie using the estimated calorie consumption of the predetermined period, and the target exercise amount desirable for the living body to consume in the predetermined period Target exercise amount calculation function to perform, or a life activity index calculation function to calculate a life activity index from the actually measured exercise amount, the exercise amount, the difference between the target value and the actually measured value or the time tendency of the life activity index is displayed on the display unit. An exercise amount measuring device to be worn on a human body, characterized in that: