JP2009011734A - Body composition measuring instrument, body composition measuring system, program and body composition measuring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly accurate body composition measuring instrument by measuring a body size. <P>SOLUTION: This body composition measuring instrument is provided with a body size measuring means for measuring the body size, a current application means for applying a current to a living body, a voltage measuring means for measuring a voltage, and a computing means for finding a body composition based on the body size measured by the body size measuring means and a bioelectrical impedance measured by the current application means and the voltage measuring means. The body size measuring means is characterized in being a non-contact type body size measuring means and a radio type body size measuring means. The computing means finds the body compositions of the whole body, the left arm, the right arm, the left leg, the right leg, the left half body, the right half body and the trunk part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention particularly relates to a body composition measuring device, a body composition measuring system, a program, and a body composition measuring method.

In recent years, the demand for objectively knowing about one's body shape has increased due to an increase in health consciousness.
As a means for measuring this body shape, a body that can measure body shape indirectly by calculating body fat percentage, muscle mass, etc. of the whole body by measuring bioelectrical impedance and measuring body composition about the inside of the body Composition meters are becoming popular.

For example, referring to FIG. 6 or 7 of Patent Document 1, a body composition meter for measuring bioelectrical impedance is described (hereinafter referred to as Prior Art 1).
The body composition meter of this prior art 1 can measure the body composition of each part such as the hand, foot, and trunk of the body by using eight electrodes. Thereby, a body shape can be measured indirectly.

On the other hand, there are several methods for directly measuring the body shape of an actual measurer.
For example, referring to Patent Document 2, there is an underwear three-dimensional human body measuring device (hereinafter referred to as Conventional Technology 2).

The apparatus of the prior art 2 is capable of obtaining a three-dimensional coordinate of a human body by projecting a lattice pattern onto a human body with a projector and calculating three-dimensional coordinates of the lattice from an image photographed with a CCD camera.
According to the apparatus of prior art 2, the body size, which is a set of three-dimensional dimensions of the whole body, can be measured in a non-contact manner from the above-described three-dimensional coordinates, and the size of the bust, waist circumference, and the like can be measured.

JP 2004-329412 A JP-A-7-139922

However, the body composition meter of the prior art 1 can measure the body composition inside the body, but assuming the average limb length based on the height value input by the user, There is a problem that an error occurs in order to obtain the body composition of the trunk.
Moreover, although the apparatus of the prior art 2 can measure the body size of a human body and measure an apparent body shape, it cannot measure the body composition inside the actual body.

  This invention is made | formed in view of such a condition, and makes it a subject to eliminate the above-mentioned subject.

The body composition measuring apparatus of the present invention includes a body size measuring means for measuring a body size, a current applying means for applying a current to a living body, a voltage measuring means for measuring a voltage, and a body size measured by the body size measuring means. And a calculating means for obtaining a body composition from the bioelectrical impedance measured by the current applying means and the voltage measuring means.
In the body composition measuring apparatus according to the present invention, the calculation means obtains any body composition of the whole body, left arm, right arm, left foot, right foot, left half body, right half body, and trunk.
The body composition measuring apparatus of the present invention further includes a left hand bar for grasping with the left hand and a right hand bar for grasping with the right hand, and the current applying means and the voltage measuring means are the left hand bar and the right hand bar. It is provided with the bar, the bottom face which contacts a left foot, and the bottom face which contacts a right foot.
The body composition measuring apparatus of the present invention is characterized in that the left hand bar and the right hand bar are a left hand bar and a right hand bar whose lengths can be adjusted.
The body composition measuring apparatus of the present invention is characterized in that the body size measuring means is a non-contact type body size measuring means.
The body composition measuring apparatus of the present invention is characterized in that the non-contact type body size measuring means is an optical body size measuring means.
The body composition measuring apparatus of the present invention is characterized in that the non-contact type body size measuring means is a radio wave type body size measuring means.
The body composition measuring apparatus of the present invention is further characterized by further comprising sauna means for realizing a sauna function.
The body composition measuring system of the present invention is measured by a body size measuring means for measuring the body size of the whole body, a current applying means for applying a current to a living body, a voltage measuring means for measuring a voltage, and the body size measuring means. A body composition measuring device comprising: a body size; a computing means for obtaining a body composition from bioelectric impedance obtained from values measured by the current applying means and the voltage measuring means; and a communication means for transmitting the body composition; And an advice means comprising a communication means capable of receiving a body composition and transmitting a corresponding advice.
The program of the present invention includes a bioelectrical impedance value corresponding to the whole body, left arm, right arm, left foot, right foot, left half, right half, or trunk, and the whole body, left arm, right arm, left foot, right foot, left half, right The body composition is obtained using the body size corresponding to the half body or the trunk.
The body composition measuring method of the present invention is characterized in that the body size is measured by a non-contact type body size measuring means, the bioelectrical impedance is measured, and the body composition is obtained from the body size and the bioelectrical impedance from the body size. And

  ADVANTAGE OF THE INVENTION According to this invention, a highly accurate body composition measuring apparatus can be provided by measuring a body size.

<Embodiment>
(Configuration of bioelectrical impedance measuring device)
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
The measuring device X according to the embodiment of the present invention can measure the body composition in the body by measuring the bioelectrical impedance, and measures the body size of the body of the measurement subject to measure the external body shape can do. In addition, it has a sauna function, so you can measure your body shape anytime before using the sauna.
Referring to FIG. 1, the measurement apparatus X is schematically configured from a measurement room 200 and a control unit 100.
The control unit 100 is a control device using a PC (personal computer) such as a PC / AT compatible machine, controls the measurement room 200, browses the measurement result of the body type performed by the measured person, and gives advice. Used when referring to. The control unit 100 includes an input unit 6 such as a keyboard and a pointing device, a display device 7 such as a liquid crystal display, and a printing device 8 that prints measurement results.
The control unit 100 is connected to the measurement room 200 by the cord 10.

The measurement room 200 is, for example, a cylindrical private room having a function of a sauna or the like, and includes a door 40 and a wall 30.
Inside the measurement room 200, there are a left hand bar 3 (left hand bar) and a right hand bar 4 (right hand bar) held by the measurement subject. The bars 3 and 4 are movable and can be adjusted in length. Thereby, it can expand and contract according to the height of the person to be measured, and the body shape can be measured in an accurate standing posture. The bar 3 and the bar 4 can be removed and attached to the wall 30 when not in use.

The bar 3 is provided with a current supply electrode 3a and a voltage measurement electrode 3b (current application means), which are hand electrodes used when measuring the body composition in the body, in the grip portion. Similarly, the bar 4 is provided with a current supply electrode 4a and a voltage measurement electrode 4b. In addition, the floor of the measurement room 200 is provided with a current supply electrode 13a and a voltage measurement electrode 14b for the left foot where the measurer stands, and a current supply electrode 14a and a voltage measurement electrode 14b for the right foot.
In addition, the person to be measured can instruct the start of body shape measurement or display the state at the time of measurement, and is equipped with a touch panel 9 which is a liquid crystal display device / touch panel or the like with a built-in voice output means such as a speaker. .

Furthermore, inside the measurement room 200, a body sensor 50, which is a body size measuring means for measuring the body size, is provided.
The structure of the body sensor 50 will be described. An inverted L-shaped body measurement bar that rotates around the center of a cylindrical measurement room 200 is attached.
This body measurement bar is provided with known optical distance measuring elements 55-1 to 55-n (for example, 196 in total) using a plurality of infrared rays and lasers at equal intervals.

This body sensor 50 is a non-contact body size measuring means, and measures the distance in the horizontal direction by a distance measuring element (for example, distance measuring element 55-10) provided vertically on the body measuring bar. Further, the distance in the vertical direction is measured by a distance measuring element (for example, distance measuring element 55-1) provided on the side of the body shape measuring bar.
To measure the body size of a subject, only the above-mentioned vertical element is sufficient, but measuring the height of the person being measured using the horizontal element shortens the measurement time and increases accuracy. Can be increased.

When the body size is actually measured using the body sensor 50, the body measurement bar rotates, and infrared rays and lasers are emitted from the distance measuring elements 55-1 to 55-n. The emitted infrared rays and laser are reflected on the surface of the body of the person to be measured, and the time until the light is reflected and returned, the phase difference, and the like are received by the light receiving elements incorporated in each distance measuring element. The distance can be measured by the signal received by the light receiving element.
The body shape measurement bar makes a round around the person to be measured in about 10 seconds and acquires the solid coordinate data.

Further, inside the measurement room 200, there are provided a heater 71 such as an infrared panel heater for realizing a sauna function and a heater 72 (sauna means).
The heater 71 and the heater 72 can be used when the measurer selects the sauna mode from the touch panel 9 or the input unit 6.
Furthermore, a seat-like or bar-like chair (not shown) that does not create a blind spot when measuring the body size is provided for the sauna function.

(Internal control configuration)
Next, the control configuration of the measuring apparatus X will be described with reference to the block diagram of FIG.
As described above, the control unit 100 is configured by a PC or the like, and includes an arithmetic control device 25 such as a CPU, a storage device 24 such as an HDD such as a RAM, a ROM, a flash memory, and a fixed disk device, an input unit 6, A display device 7 and a printing device 8 are provided. Further, the control unit 100 is connected to the communication unit 60 of the measurement room 200 via the code 10 by the communication unit 61 which is an interface such as serial, USB, wired LAN, wireless LAN, wireless USB, Bluetooth (registered trademark). ing. When the communication unit 61 is a wireless interface, the code 10 is not necessary.
The arithmetic and control unit 25 is a means for executing the body shape measurement program stored in the storage device 24, and is also a correction means for correcting the calculated bioelectrical impedance. Furthermore, it is a body composition calculation means for calculating an index related to the composition of the living body, and can also perform other various calculations and controls.

The measurement room 200 includes a control unit 23 that is a control means such as a built-in microprocessor or CPU, a touch panel 9, a known weight measuring device 26 that measures the weight of the person to be measured, a body type sensor 50, and a communication unit. The same communication unit 60 as that 61, a heater 71, and a heater 72 are provided. Further, the current supply electrodes 3a, 4a, 13a, and 14a and the signal lines from the voltage measurement electrodes 3b, 4b, 13b, and 14b are connected to the current supply device 21 via the electrode switching device 20 that is an electronic relay circuit or the like. Are connected to the voltage measuring device 22. The current supply device 21 and the voltage measurement device 22 are connected to the control unit 23. Further, the power supply device 28 supplies power to the control unit 23, the heaters 71 and 72, the body sensor 50, and the like.
The control unit 23 includes a RAM, a ROM, a flash memory, and the like, and the ROM or the flash memory stores firmware for performing measurement and measurement using each unit. Further, the control unit 23 measures the bioelectrical impedance and the body size according to the contents of the firmware according to the instruction from the control unit 100. It also controls the sauna function.

(Body shape measurement)
Next, body shape measurement according to the embodiment of the present invention will be described with reference to FIG. 3 which is a flowchart.
First, when a measurer turns on a main power switch (not shown) of the measurement room 200, power is supplied from the power supply device 28 to each unit. The control unit 23 executes firmware stored in the ROM or the like, checks each unit, and enters a standby state with low power consumption.
Next, when the measurer starts the body shape measurement program of the control unit 100 and the measurer inputs a start button for performing body shape measurement from the input unit 6, the arithmetic and control unit 25 receives the code 10 from the communication unit 61. Then, a measurement start command is transmitted to the measurement room 200.
Here, the person to be measured opens the door 40 and enters the inside to start measurement.

(Step S101)
First, in step S101, the control unit 23 performs an initialization process for measurement described in the firmware.
Thereby, the control part 23 initializes each part.
When the initialization process for each unit is completed, the arithmetic and control unit 25 advances the process to the next step S102.

(Step S102)
Next, in step S <b> 102, the control unit 23 displays a personal parameter input screen on the touch panel 9 and the display device 7.
Here, first, the measurement person or the person to be measured selects who performs the measurement. Then, personal parameters such as the gender, age, and amount of clothes of the person to be measured are input. In addition, when the person to be measured measures before using the sauna and enters the measurement room 200 naked, the amount of clothes is naturally zero.
The input of the personal parameters is performed using the touch panel 9 or numeric keys of the input unit 6. Further, it may be input by a computer other than the control unit 100 via the communication unit 60.
The personal parameter data is received by the communication unit 61 from the communication unit 60 via the code 10 and is stored in the storage device 24 by the arithmetic and control unit 25.

When the input of the personal parameters is completed, the control unit 23 displays a screen for instructing the start of measurement on the touch panel 9.
Accordingly, the measurer holds the bar 3 with the left hand, the bar 4 with the right hand, aligns the left foot with the current supply electrode 13a and the voltage measurement electrode 13b, and aligns the right foot with the current supply electrode 14a and the voltage measurement electrode 14b. .
Here, when it is detected that a predetermined time has elapsed or the control unit 23 is energized to each electrode, the control unit 23 starts an actual measurement process.

(Step S103)
Next, in step S <b> 103, the control unit 23 measures an external body shape.
First, the control unit 23 rotates the body shape measurement bar of the sensor 50 to the initial position. Then, while rotating the body shape measurement bar at a predetermined speed, infrared rays and laser are emitted, and infrared rays and laser reflected by the surface of the body of the measurement subject are received. Thereby, for example, it is possible to detect the solid coordinates of each part of the body up to 200,000 points.
From this solid coordinate, the body size is measured. Referring to FIG. 4, in measuring apparatus X according to the embodiment of the present invention, the circumference of head circumference, shoulder width, neck circumference, chest circumference (bust), abdomen (waist), waist circumference (hip), crotch, etc. It can be measured. Furthermore, the length and volume of the limbs can also be measured.
The measurement result of each part in the measurement of the body size is used together with the result of bioelectrical impedance measurement described later.

Simultaneously with the measurement of the body size, the weight of the person to be measured is also measured by the weight measuring device 26 using an electronic strain gauge or the like.
The measured data is transmitted from the communication unit 60 via the code 10 by the control unit 23. When the communication unit 61 of the control unit 100 receives this data, the arithmetic control device 25 stores the data in the storage device 24.

(Step S104)
Next, in step S104, the control unit 23 measures bioelectrical impedance (biological BI).
The operation of bioelectrical impedance measurement (multifrequency bioimpedance measurement) using alternating currents of a plurality of frequencies performed at this time will be described below.

First, referring to FIG. 6, in the 8-electrode bioelectrical impedance measuring apparatus, current is supplied from the electrodes on the toe side of both feet and the fingertip side of both hands, and the heel side of both feet and the thumb ball side of both hands Measure the voltage with.
In this 8-electrode bioelectrical impedance measuring apparatus, bioelectrical impedance measurement is performed on five parts such as the whole body, the right foot, the left foot, the right arm, and the left arm by switching the part where the current flows and the place where the voltage is measured. .

For example, when measuring the impedance of the right foot, a current is passed between the right hand and the foot, and the voltage between both feet is measured. Thereby, the body composition of each part of the right foot, left foot, right arm, left arm, right half body, and left half body can be measured.
Furthermore, it is possible to estimate the whole body composition based on the bioelectrical impedance of the left half.
Moreover, it is possible to measure the body composition of the trunk by removing information on the limbs from the whole body.

In the measuring apparatus X according to the embodiment of the present invention, the multi-frequency bioelectrical impedance measurement is performed for n times that have been set, starting with the frequency Fi of the applied current starting from i = 1.
As an initial setting of the measurement at the first frequency, i = 1 is set, and the frequency Fi is set by the value of i.
Based on measurement control parameters (hereinafter abbreviated as measurement control parameters) preliminarily stored in the ROM in the control unit 23, the control unit 23 sets an output signal frequency and outputs the output signal to the current supply device 21. .
The current supply device 21 is composed of a constant current output circuit capable of setting a current value, and sets an output current value based on a measurement control parameter.
While switching this AC current output via the electrode switching device 20, any one of the right foot, left foot, right arm, left arm, right half body, and left half body measured by the current supply electrodes 3a, 4a, 13a, and 14a as described above. Apply current to the crab. The voltage at this time is measured by the voltage measurement electrodes 3b, 4b, 13b, and 14b.

  At the time of this measurement, the voltage generated between the electrodes 3b, 4b, 13b, or 14b at this time is input to the differential amplifier circuit in the voltage measuring device 22 through the voltage measuring electrode in contact with the person to be measured. Then, a signal that is the difference between the input voltages is output to the A / D converter in the control unit 23. The A / D converter measures the bioelectrical impedance by converting the input analog signal into a digital signal, and stores the result in the RAM in the control unit 23.

  When the impedance measurement at the first frequency is completed, 1 is added to i to determine whether the prescribed number of measurements has been completed. If i exceeds the set number n, the impedance measurement ends. If not, impedance measurement is performed at the next frequency.

Subsequently, a bioelectrical impedance vector locus and parameters related thereto are calculated from the bioelectrical impedance measurement value measured in step S104.
Normally, the bioelectrical impedance is represented by an equivalent circuit in which the extracellular fluid resistance Re, the intracellular fluid resistance Ri, and the cell membrane capacitance Cm are expressed by lumped constants as shown in FIG. Because each cell is represented by a circuit with different constants due to differences in shape and properties, the living body that is an aggregate is a bioelectrical impedance vector as in the case of measuring an equivalent circuit with a lumped constant. The trajectory is not a semicircle, but an arc that follows the Cole-Cole arc rule.

  Therefore, in general, the bioelectrical impedance draws an arcuate locus as shown in FIG. Here, the X axis represents the resistance component of bioelectrical impedance, and the Y axis represents the reactance component of bioelectrical impedance. Since the reactance component of the bioelectrical impedance is capacitive and takes a negative value, the bioelectrical impedance vector locus is located below the X axis, and the frequency F1 is assumed from the assumption that the bioelectrical impedance vector locus to be obtained is an arc. , F2, ..., FN, the bioelectrical impedance measurement values Z1, Z2, ..., ZN are on the circumference of a certain circle. Here, assuming that the X coordinate of the center of the circle is a, the Y coordinate of the center of the circle is b, and the radius of the circle is r, the equation of the circle that passes through the bioelectrical impedance measurement value is expressed as Equation 1.

(X−a) ² + (Y−b) ² = r ² (Formula 1)

a, b, r are obtained by substituting bioelectrical impedance measured values Z1, Z2,..., ZN at frequencies F1, F2,.

Moreover, from Formula 1, X is represented as follows.

X = a ± sqrt (r ² −b ² ) (Formula 2)

Note that sqrt () indicates a square root.

Then, from Expression 2, the intersections R0 and Rinf (R0> Rinf) between the circle represented by Expression 1 and the X axis are obtained as follows.

^{R0 = a + sqrt (r 2} -b 2) ...... ( Equation 3)
Rinf = a−sqrt (r ² −b ² ) (Formula 4)

Furthermore, Re and Ri in the equivalent circuit of FIG. 7 are obtained from Equation 3 and Equation 4 as follows.

Re = R0 (Formula 5)
Ri = R0 · Rinf / (R0−Rinf) (Formula 6)

Since the bioelectrical impedance vector Zc at the characteristic frequency Fc is a point where the absolute value of the reactance component, that is, the Y-axis component is maximized, the X-coordinate value as the resistance component and the Y-coordinate value as the reactance component in this case are as follows. It is calculated as follows.

X = a (Formula 7)
Y = b−r (Formula 8)

Here, assuming that Rc is a resistance component of Zc and Xc is a reactance component of Zc, Zc is expressed as follows.

Zc = Rc + jXc = a + j (b−r) (Equation 9)

Also, assuming that Z (ω) is a bioelectrical impedance vector at ω and τ and β are constants, a bioelectrical impedance vector at an arbitrary angular frequency ω is expressed as follows from the Cole-Cole arc rule.

Z (ω) = (R0−Rinf) / {1+ (jωτ) ^β } (Equation 10)

Further, assuming that τ = 1 / ωc, Equation 10 is expressed as follows.

Z (ω) = (R0−Rinf) / {1+ (jω / ωc) ^β } (Equation 11)

Here, since ωc = 2πFc, Fc and β are obtained using the previously measured bioelectrical impedance measurement value.
The obtained bioelectrical impedance measurement data is transmitted from the communication unit 60 via the code 10 in the same manner as the body size measurement data.
When the communication unit 61 of the control unit 100 receives this data, the arithmetic control device 25 stores the data in the storage device 24.

(Step S105)
Next, in step S <b> 105, the arithmetic and control unit 25 calculates the body component amount from the measurement data stored in the RAM and stores it in the RAM of the storage device 24.
That is, the bioelectrical impedance vector trajectory obtained from the bioelectrical impedance measurement values as described above and the parameters R0 and Rinf, Re and Ri, Zc, Rc, Xc, Fc, etc., and the values in the body size measurement data. Based on this, body component amounts such as body fat mass and lean mass (difference between body weight and body fat mass) are calculated.
Further, from the calculated body component amount, the intracellular fluid amount ICW, the extracellular fluid amount ECW, the intracellular / extracellular fluid amount ratio ICW / ECW, the body water amount TBW (= ICW + ECW, the extracellular fluid amount and the intracellular fluid amount A value such as (sum) can also be obtained.
For example, the values of the intracellular fluid amount ICW, the extracellular fluid amount ECW, and the body water amount TBW are obtained by the following equations using the values of Ri, Re, height Ht, and weight W.

ICW = Ki1 · Ht2 / Ri + Ki2W + Ki3
ECW = Ke1 · Ht2 / Re + Ke2W + Ke3
TBW = ICW + ECW

(However, Ki1, Ki2, Ki3, Ke1, Ke2, and Ke3 are coefficients)

Here, the calculation formula for obtaining the whole body lean mass (FFM) can be expressed as the following formula where the height is Ht and the bioelectrical impedance is Z. This height Ht uses the length measured by the above body size measurement.

FFM = k1 × Ht2 / Z + k2 (Formula 12)

(Where k1 and k2 are constants)

Furthermore, the calculation formula for obtaining the whole body fat percentage (% FAT) using the above-mentioned FFM is as follows:

% FAT = (W−FFM) / W × 100 (Equation 13)

Even in the case of obtaining the lean mass of each limb instead of the whole body lean mass, the current path length or length information that is a substitute for this is required.
In the body composition meter of the prior art 1, this value is substituted by applying the average limb length based on the height Ht. However, in the measuring apparatus X according to the embodiment of the present invention, the body size From the measurement, the length of the limb can be accurately obtained.
Here, when the lengths of the limbs accurately determined are Hlh (left hand length), Hrh (right hand length), Hll (left foot length), and Hrl (right foot length), respectively, As a function, a more accurate calculation of lean mass can be performed.

FFM (left hand) = f (Z, Hlh) (Formula 14-1)
FFM (right hand) = f (Z, Hrh) (Formula 14-2)
FFM (left foot) = f (Z, Hll) (Formula 14-3)
FFM (right foot) = f (Z, Hrl) (Formula 14-4)

In obtaining the body fat percentage of the whole body, the weight W as weight information is required as shown in (Equation 13).
Even in the case of obtaining the body fat percentage of each limb, (Formula 13) is an expression that merely indicates the proportion of weight, and therefore the same formula can be used.
Here, (Equation 13) requires weight information of each limb. However, it is difficult to measure the weight of each part of the limb alone.

In the measuring apparatus X according to the embodiment of the present invention, the following method is used for calculating the body fat percentage of each limb by eliminating the weight information of each limb by body type measurement.
Generally, when the specific gravity of the adipose tissue is 0.9 g / cm3 and the specific gravity of the lean tissue is 1.0 g / cm3,
The body weight W is expressed as follows using the total tissue Vt, the adipose tissue VFM, and the lean body tissue VFFM.

W = 0.9 x VFM + 1.0 x VFFM
= 0.9 × (Vt−VFFM) + 1.0 × VFFM
= 0.9 x Vt + 0.1 x VFFM

Here, since VFFM = FFM, from the above formula:

% FAT = (0.9 × Vt + 0.1 × FFM−FFM)
/(0.9×Vt+0.1×FFM)×100
= 0.9 × (Vt−FFM) / (0.9 × Vt + 0.1 × FFM) × 100

Thus, the body fat percentage can be calculated without inputting the weight of each part of the limb.
The FFM at this time is calculated from the equation (14).

In the above (Formulas 14-1 to 14-4), Hlh (length of the left hand), Hrh (length of the right hand), Hll (length of the left foot), which are the lengths of the respective limbs by body type measurement as the current path length. And Hrl (length of right foot) as parameters.
In addition, the cross-sectional areas of the limbs measured by body size, which are Alh (the cross-sectional area of the left hand), Arh (the cross-sectional area of the right hand), All (the cross-sectional area of the left foot), and Arl (the cross-sectional area of the right foot) are used as parameters. In addition, by using the volume of each limb, more accurate body composition (lean mass, body fat percentage) can be calculated.

FFM (left hand) = f (Z, Hlh, Alh)
FFM (right hand) = f (Z, Hrh, Arh)
FFM (left foot) = f (Z, Hll, All)
FFM (right foot) = f (Z, Hrl, Arl)

(Step S106)
Next, in step S106, the control unit 23 displays a screen indicating that the measurement has been completed on the touch panel 9, and produces a sound effect from the speaker. Here, the measurement subject can exit the door 40 and refer to the measurement result displayed on the control unit 100.
In addition, the calculation control device 25 displays a screen indicating that the measurement and calculation are completed on the display device 7.

(Step S107)
Next, in step S107, the arithmetic and control unit 25 displays the measurement result on the display unit 7 and gives advice to the subject.
Referring to FIG. 9, when the measurer presses the key of the input unit 6 or instructs with a pointing device on the initial screen of FIG. 9, the page (for example, the measurement data of each measured person (for example, Mr. A)) is displayed. A's page).
In the page displaying the measurement data, when each tab is opened by pressing a key of the input unit 6 or instructing with a pointing device, data corresponding to each tab can be referred to. For example, weight, body fat percentage, basal metabolic rate, etc. can be referred to as basic data, and changes in body size such as waist can be referred to as comparative data.

In the exercise menu, necessary exercise examples can be shown in consideration of the current body type and body composition. Here, the facilities of the recommended exercise (yoga, fitness, swimming, etc.) can be presented.
In addition, an example of exercise according to the ability (jump strength, back strength, endurance, etc.) to increase strength can be shown.

Furthermore, advice on meals to become an ideal figure can be provided. In addition, the advice about a diabetic diet can also be performed by putting the value of urine sugar as a personal parameter.
Further, the measurement result can be continuously stored in the storage device 24, and a comparison value with the previous value can be displayed.

  Furthermore, if it demonstrates with reference to FIG. 10, the body size actually measured can be displayed. Here, an image compared with the body size measured last time can be displayed, and further, for example, a comparative image can be displayed for the contour of a specific portion such as a waist and a hip. In this display, since the difference from the previous time is painted, a “real display” in which the difference is easy to understand and a “line display” in which a plurality of images are easily compared can be selected.

In addition, overlay display in which the estimated body fat amount is superimposed on these specific parts can be performed, and the amount of built-in fat can also be displayed in three dimensions. Further, for example, it is possible to display data as a three-dimensional image by superimposing data on whether the visceral fat is large or the muscle mass is large on the body image.
In addition, it is possible to display the waist / hip length related to the metabolic syndrome.
Further, it is possible to imagine an ideal body shape based on height, age, sex, exercise history, etc., and display the difference between the ideal body shape and the current body shape. For example, it is possible to provide a three-dimensional display of the difference from the ideal body shape while giving advice such as a waist being 10 cm thick and a thigh being 5 cm thick.

Based on these data, body type advice can be given. For example, it can be pointed out whether there is a lot of subcutaneous fat, such as “Anko-type”, or whether it is muscular and fat, such as “Stick”.
In addition, specific advice on specific situations can be given. For example, as a diagnosis of the muscle mass of a sports player, advice can be given from the reference value of the body type of each site and the amount of body fat as to whether the muscle mass at each site is appropriate.
Also, regarding the difference between the ideal body shape and the muscle mass necessary for a specific sport, the lacking portion of the muscle mass, etc. is color-coded (for example, the missing portion is red and the sufficient portion is blue). A three-dimensional display is also possible.

  With regard to this advice, the above-described display screen is displayed based on the text stored in the HDD or the like of the storage device 24. This content can be expanded by downloading from the Internet or the like. It is also possible to give advice to study knowledge about health.

Further, when the measurer presses the key of the input unit 6, the printing device 8 prints the content of the advice described above and the measurement values including the muscle mass, body fat percentage, bone density, and the like among the measurement results described above.
At the time of this printing, it is also possible to print a document of more detailed advice (for example, exercise amount for increasing muscle mass, meal menu, one-point advice for metabolic syndrome, etc.).
In addition, these measurement results can be transmitted to another computer using the communication unit 60. In this case, it is possible to simply confirm the measurement result on the screen of another computer and check the observation data over time. Further, this data can be exported in a csv (comma delimited) format or the like.
In addition, depending on the item, it can be transmitted via the Internet, etc., and this is received by another computer (advice means) such as a server, and detailed advice is sent to give individual guidance on body shape measurement Is possible.
When the measurement result is confirmed, the measurer turns off the power of the measuring apparatus X and ends the measurement.

With the configuration described above, the following effects can be obtained.
First, the height Ht used in the prior art 1 is length information which is a substitute for the current path length of the current applied for bioelectrical impedance measurement.
In the body composition meter of Prior Art 1, the height is manually input. Moreover, even if it was a body composition meter using a height meter, a contact type height meter was used. For this reason, the error was large.
However, the body type measurement sensor 50 according to the embodiment of the present invention can measure the body size without contact.
Therefore, the height Ht can be determined with an accuracy of <0.1 cm. The accuracy of the body fat percentage increases as the Ht is more accurate. For this reason, the effect that the body fat percentage can be measured with higher accuracy than before can be obtained.

In addition, when the amount of lean mass of each limb is calculated instead of the total body lean mass, the current path length or length information that is a substitute for this is required.
In the body composition meter of the prior art 1, it is difficult to obtain and input length information of each limb, and as a result, the height Ht and the length of each limb are in a proportional relationship. In addition, the height Ht was substituted.

FFM (limbs) = f (Z, Ht)

As a matter of course, there is an individual (person) difference in the relationship between the height and the length of each limb, which causes an error.

  However, the measuring device X according to the embodiment of the present invention is based on the physique measurement, the length of the limbs Hlh (length of the left hand), Hrh (length of the right hand), Hll (length of the left foot), Hrl (length of the right foot). (Length) can be obtained, and the effect of more accurate calculation of the lean mass can be obtained as in (Expression 14-1) to (Expression 14-4) described above.

Moreover, although the body composition meter of Prior Art 1 numerically expresses the body fat percentage and muscle mass ratio in the body, it shows how fat and muscle mass actually appear in the body shape. It was difficult to express. That is, only by using a body composition meter, it was only possible to conceptually grasp the body shape from the ratio of body fat and body composition of each part of the body displayed on a liquid crystal display or the like.
However, since the measuring device X can display the body size measured and can compare with the past body shape, the ability to express the measurement result can be improved. This makes it possible to perform health management and cosmetic body shape management at the same time.

In the above-described cosmetic body shape management, not only general subjects but also bodybuilders and athletes can use. This is because the measuring apparatus X can visually determine the amount of muscle by measuring the body size, and can accurately measure the muscle mass and fat percentage of each part.
For example, when the volume of the right arm is decreasing but the muscle is increasing, it can be determined that the muscle is increasing. Therefore, in the case of a bodybuilder, advice can be given to further increase the volume of muscles, and in the case of an athlete, advice can be given to strengthen parts where other muscles have not increased.

Furthermore, in the case of an athlete, it is very important to know which position the muscle mass is increased. For this reason, for example, it can be advised whether the muscle suitable for each sport is increasing by training this measuring apparatus X, such as a swimmer, a short-distance player, a long-distance player.
Also, by inputting the body type that you want to become as personal parameters (weight, arm circumference, foot circumference, waist, hip, bust, etc.), you can display which muscles are missing.
In addition to sports, this “body shape you want to be” can respond to requests such as narrowing your legs and a little more abdominal muscles.

Here, it is also possible to prepare a plurality of sample data of “desired body shape” and select from them.
It is also possible to display an overlay of the desired body shape and the current body shape, adjust the desired body shape using the input unit 6, and provide advice based on the difference between the adjusted desired body shape and the current body shape. .

In addition, unlike the bioelectrical impedance measuring device of the prior art 1, the measuring device X stores a regression equation of subjects including children and the elderly in the ROM of the storage device 24.
For this reason, it is possible to accurately measure the muscle mass of children and the elderly. Therefore, it is possible to grasp the information about the degree of growth and the body type for the child, and for the elderly, it is possible to accurately grasp the recovery in the case of rehabilitation from the injury by the body composition and the body type.

In addition, the bar 3 and the bar 4 according to the embodiment of the present invention are movable, and by measuring the body shape with an accurate and stable standing posture by adjusting the length by expanding and contracting according to the height of the measurement subject. It can be carried out.
Furthermore, by holding the bar 3 and the bar 4 while standing at the body size measurement, a stable posture can be maintained and an accurate measurement value of the body size can be measured.

In addition, since the measuring apparatus X according to the embodiment of the present invention is equipped with a sauna function, the body size is measured in a state close to nakedness, so that an effect that measurement errors are small can be obtained.
Furthermore, when installed as a home sauna, the home sauna is often used every day, so that an effect that body type measurement can be incorporated into a daily routine can be obtained. Furthermore, since it becomes naked when entering a sauna, the body size can be measured by an optical distance measuring element without a sense of resistance of the person being measured.

  Note that the measurement apparatus X according to the embodiment of the present invention is used by instructing the touch panel 9 after turning on the main power supply of the measurement room 200 when only the sauna function is used without measuring the body shape. Can do. That is, there is no need to activate the control unit 100.

  Moreover, it is also possible to adopt a configuration in which all the above measurements can be performed by providing the control unit 100 in the measurement room 200 without preparing the control unit 100. In this case, it is desirable to set the printing device 8 outside the wall 30 in order to avoid deterioration of the sauna due to heat. Furthermore, the touch panel 9 can also be configured to be provided outside the wall 30.

  Moreover, you may make it the structure which installs the touchscreen 9 in a bathroom vanity and can browse a daily measurement result. In addition, it can be installed as a relaxation room with sauna function, body shape measurement, vanity table and bath function.

Furthermore, with respect to the measuring apparatus X according to the embodiment of the present invention, for example, as in the related art 2, it is possible to take a body image with a camera and measure the body size.
In this case, by using an infrared camera, it is possible to estimate the amount of fat from the heat distribution on the surface of the body and use it as a reference for calculation of body type measurement. Furthermore, it is also possible to measure the skin state by infrared measurement. Thereby, it is possible to obtain a correlation between the body composition, the body shape, and the age of the skin, and to perform a comprehensive evaluation on “youthfulness”. Therefore, the measuring device X can be effectively used in an esthetic salon or the like.

In addition, of course, a configuration of a measuring device without a sauna is also possible.
In this case, as a body type sensor, for example, a non-contact type radio wave that is a body type measuring radar that measures a body size, such as the technology of Intellifit Inc. (http://www.intellifit.com/Intellifit/Home.aspx). It is preferable to use the body size measuring means of the formula.
This body measurement radar generates a radio wave such as a microwave from a radio wave generating element while rotating the body measurement bar at a predetermined speed, and receives the radio wave absorbed and reflected by the moisture on the surface of the body of the subject. To do. Thereby, the distance to the body can be measured by capturing the radio wave that reacts to the moisture of the body.
Since the radio wave passes through the clothes and is reflected and absorbed by the surface of the body, the body size can be measured even with the clothes on, and the burden on the subject can be reduced.

Furthermore, a sphygmomanometer, a pulse wave meter, or the like can be mounted on the bar 3 or the bar 4 according to the embodiment of the present invention. Thereby, the body composition can be measured in consideration of the moisture change during the sauna, and arteriosclerosis and the like can also be measured.
This makes it possible to provide advice on body shape, metabolic syndrome, etc., together with measurement of the body size.

  In addition, the touch panel 9 according to the embodiment of the present invention can be added with a TV function, a video / music playback function, and a radio function. Thereby, it becomes possible to spend the time to relax in the sauna after a body shape measurement significantly, and it becomes possible to raise the motivation which performs a body shape measurement. In addition, this video playback function can play educational programs related to body composition and body shape, and can promote affiliated fitness clubs and the like.

  Note that the configuration and operation of the above-described embodiment are examples, and it is needless to say that the configuration and operation can be appropriately changed and executed without departing from the gist of the present invention.

It is an external view which shows the structure of the measuring apparatus X which concerns on embodiment of this invention. It is a block diagram which shows the control structure of the measuring apparatus X which concerns on embodiment of this invention. It is a flowchart which shows the outline | summary of the measurement procedure and operation | movement of the measuring apparatus X which concerns on embodiment of this invention. It is a figure which shows the body shape measurement specification of the measuring apparatus X which concerns on embodiment of this invention. It is a figure which shows the body composition measurement specification of the measuring apparatus X which concerns on embodiment of this invention. It is a conceptual diagram shown about the measuring method by the bioelectrical impedance measuring apparatus of 8 electrodes. It is an equivalent circuit diagram showing bioelectrical impedance. It is a graph showing a bioelectrical impedance vector locus. It is a conceptual diagram which shows the example of a display of the result of the body shape measurement which concerns on embodiment of this invention. It is a conceptual diagram which shows the example of a display of the measurement of the body size which concerns on embodiment of this invention.

Explanation of symbols

3, 4 Bars 3a, 4a, 13a, 14a Current supply electrodes (current application means)
3b, 4b, 13b, 14b Voltage measuring electrode (voltage measuring means)
6 Input unit 7 Display device 8 Printing device 9 Touch panel 10 Code 20 Electrode switching device 21 Current supply device 22 Voltage measurement device 23 Control unit 24 Storage device 25 Calculation control device 26 Weight measurement device 28 Power supply device 30 Wall 40 Door 50 Body sensor 55 -1 to 55-n Distance measuring element 60, 61 Communication unit 71, 72 Heater 100 Control unit 200 Measuring room X Measuring device

Claims (11)

Body size measuring means for measuring the body size;
Current applying means for applying current to the living body and voltage measuring means for measuring the voltage;
A body composition measuring apparatus comprising: an arithmetic means for obtaining a body composition from the body size measured by the body size measuring means and the bioelectrical impedance measured by the current applying means and the voltage measuring means.   The body composition measuring apparatus according to claim 1, wherein the arithmetic means calculates a body composition of any one of a whole body, a left arm, a right arm, a left foot, a right foot, a left half body, a right half body, and a trunk. A left hand bar for holding with the left hand and a right hand bar for holding with the right hand,
The said current application means and a voltage measurement means are equipped with the said left hand bar, the said right hand bar, the bottom face which contacts a left foot, and the bottom face which contacts a right foot, The Claim 1 or 2 characterized by the above-mentioned. Body composition measuring device.   The body composition measuring device according to any one of claims 1 to 3, wherein the left hand bar and the right hand bar are a left hand bar and a right hand bar that are adjustable in length.   The body composition measuring device according to any one of claims 1 to 4, wherein the body size measuring means is a non-contact type body size measuring means.   6. The body composition measuring apparatus according to claim 5, wherein the non-contact type body size measuring means is an optical body size measuring means.   6. The body composition measuring apparatus according to claim 5, wherein the non-contact type body size measuring means is a radio wave type body size measuring means.   The body composition measuring device according to any one of claims 1 to 7, further comprising sauna means for realizing a sauna function. Body size measuring means for measuring the body size of the whole body;
Current applying means for applying current to the living body and voltage measuring means for measuring the voltage;
Calculating means for obtaining a body composition from a body size measured by the body size measuring means, a bioelectrical impedance obtained from values measured by the current applying means and the voltage measuring means, and a communication means for transmitting the body composition. A body composition measuring device comprising:
A body composition measuring system comprising: an advice unit including a communication unit capable of receiving the body composition and transmitting a corresponding advice.   The bioelectrical impedance value corresponding to the whole body, left arm, right arm, left foot, right foot, left half body, right half body, or trunk, and the whole body, left arm, right arm, left foot, right foot, left half body, right half body, or trunk A program characterized by obtaining body composition using a corresponding body size. Measure body size with non-contact body size measuring means,
Measure bioelectrical impedance,
A body composition measurement method, comprising: obtaining a body composition from the body size and the bioelectrical impedance.

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