KR20030091052A - Scale for Measuring Body Posture Balance - Google Patents

Abstract

PURPOSE: A weight scale for measuring balance of a stance of a human body is provided to perform simultaneously a process for measuring the body fat and a process for measuring the balance of the stance of the human body by using a bioelectrical impedance analysis method. CONSTITUTION: A weight scale for measuring balance of a stance of a human body includes a support portion(5), a load sensor(4), a load measuring portion(3), a left foot electrode(1), and a right foot electrode(2). The support portion(5) supports the weight scale. The load sensor(4) is installed on an upper surface of the support portion(5). The load measuring portion(3) is installed on an upper surface of the load sensor(4). The left foot electrode(1) comes in contact with a left foot of the testee. The right foot electrode(2) comes in contact with a right foot of the testee.

Description

Scale for measuring body posture balance {Scale for Measuring Body Posture Balance}

Field of invention

The present invention relates to a weight scale having a function of analyzing body fat using a bioelectrical impedance analysis (BIA) method, and a function of measuring a body's posture balance with a load sensor.

Background of the Invention

The bioelectrical impedance method is based on the principle that current flows through a muscle containing water, and flows a weak alternating current in the human body, thereby measuring the electrical resistance or electrical conductivity of the human body, measuring height and weight, and from there It is a method of calculating the amount of moisture and body fat. Conventional scales for analyzing body fat by using the bioelectrical impedance method, as shown in Figures 8 (a) and 8 (b), the support 5 and the load provided on the support 5 to support the entire device The sensor 4 and the measuring table 3 provided on the load sensor 4 are comprised. The measuring table 3 is provided with two electrodes 1 and 2 in contact with the soles of the feet, so that the subject can measure the weight and impedance by coming up to the measuring table 3.

Postural balance in physical activity is the ability to control exercise by receiving strength, biomechanical and neurological sensory information. This postural balance is essential for people to live daily life, to maintain a stable posture, to maximize the ability of sports activities and to prevent injuries. The loss of postural balance is not correct posture, nervous system This is the basic information for determining abnormalities, imbalances in physical development, and the like. The postural balance test is used for the examination and rehabilitation of injured athletes and patients in the field of sports medicine and rehabilitation in relation to clinical practice. In the conventional apparatus for measuring the posture balance, a load sensor 4 is usually installed below both feet as shown in Fig. 9, and a method of measuring the load applied to both feet for a predetermined time is adopted.

Both the body fat measurement and the posture balance test described above are both basic and very versatile in clinical practice. In addition, the two tests are highly correlated with each other, and the body composition of each part is closely related to postural balance. Therefore, it is more clinically useful to have both tests performed simultaneously so that the results can be cross-referenced. However, it is cumbersome and wasteful of time to perform the test separately by using a weight scale having a function of measuring a conventional body fat and a device for measuring a conventional posture balance separately. Accordingly, the inventor of the present patent application has developed a weight scale which combines the function of measuring body fat using the bioelectrical impedance method and the function of measuring the posture balance of the body as one method for solving the above-mentioned drawbacks.

SUMMARY OF THE INVENTION An object of the present invention is to provide a scale for measuring body fat, and for measuring the body posture balance with a single device.

The above and other objects of the present invention can be achieved by the present invention described in detail below.

1 is a schematic diagram of a constituent device of the present invention.

2 is a schematic diagram of an electric circuit of the present invention.

3 is a view showing a change in the posture balance of the subject over time according to the present invention.

Figure 4 is a schematic diagram of the load sensor installed in front of and behind the foot in the present invention.

Figure 5 is a schematic diagram showing how the subject measures the body fat and posture balance using a weight scale according to the present invention.

Figure 6 is a schematic diagram of further installing a hand electrode in contact with the palm in the present invention.

Figure 7 is a schematic diagram of a subject using a hand electrode further installed in the measurement of body fat and postural balance using a weight scale according to the present invention.

8 is a schematic diagram of a conventional weight scale for measuring body fat using the bioelectrical impedance method.

9 is a schematic diagram of a conventional apparatus for measuring the posture balance of the left and right body.

Brief description of the main symbols in the drawing

1 electrode for left foot 2 electrode for right foot

3: measuring table 4: load sensor

5: support base 6: electronic circuit part

7: Input key 8: Display screen

9: hand electrode 10: electric wire

11: printer

Summary of the Invention

The body fat analyzer using the bioelectrical impedance method according to the present invention includes the left foot electrode 1 provided on the measuring table 3, the right foot electrode 2 provided on the support table 5, the electronic circuit unit 6, and the test subject. An input key 7 for inputting personal information, a display screen 8, and a load sensor 4 provided only at the lower end of the electrode for the left foot are characterized in that it is provided.

The apparatus part for measuring the posture balance of the left and right body of the present invention supports the entire apparatus and is installed on the support 5 for mounting the right foot, the load sensor 4 installed on the support 5, and the load sensor 4. It is characterized by consisting of the measuring table (3).

The device portion for measuring the posture balance of the left and right body of the present invention supports the entire device, and is installed on the support 5, the load sensor 4 installed on the support 5, the load sensor 4, the load sensor 4 mounted on the right foot. It is characterized by consisting of the measuring table (3).

The present invention is characterized in that in the two devices described above in one apparatus, the left foot is supported by the measuring table 3 to which the load sensor 4 is attached, and the right foot is supported by the support table 5. It is done. Unlike the weight scale having the function of measuring the body fat in the related art, the scale according to the present invention is provided with the two-foot electrodes 1 and 2 for measuring the bioimpedance divided on the measuring table 3 and the supporting table 5, respectively. . This is because, in order to measure the body posture balance, the load sensor 4 is independently installed below the left measuring table.

Hereinafter, with reference to the accompanying drawings will be described in detail the contents of the present invention.

Detailed Description of the Invention

Fig. 1 is a schematic diagram of a constituent device of the present invention, Fig. 1 (a) is a plan view, and Fig. 1 (b) is a front sectional view.

The analysis apparatus of the present invention measures the weight of the subject with a load sensor, such as a weight scale having a function of measuring a conventional body fat.

In the first operation, the examinee mounts on the scale of the present invention, places the left foot on the left foot electrode 1 provided on the measuring table 3, and places the right foot on the same measuring table 3 as the left foot. According to the first operation described above, the left foot and the right foot are simultaneously positioned on the measuring table 3 installed on the load sensor 4, but the left foot is placed in contact with the electrode 1 for the left foot, and the right foot is simply the measuring table 3. ) Only the weight is measured on the weight sensor (4).

When the weight measurement is completed, in the second operation, the subject spreads the right foot to move the right foot from the measuring table 3 to the right foot electrode 2 installed on the support 5. According to the second operation, the left foot is fixed to the electrode 1 for the left foot without moving, and the impedance is measured when the right foot is opened and moved to the electrode 2 for the right foot.

Impedance is measured at the foot, and the following body fat mass is measured using the impedance value and the input data.

FFM = f (h, w, R, sex, age)... ①

Fat free mass (FFM) is expressed as a function of height (h), weight (w), impedance (R), sex and age.

Specifically, FFM is determined as follows.

FFM = C ₁ h ² / R + C ₂ W + C ₃ . ②

Body fat mass,

FAT = Weit-FFM

Body fat percentage,

% BF = FAT / Weit × 100

So far, the measurement of impedance and the calculation of body fat amount have been discussed.

Since the left foot is still positioned on the measuring table 3 installed on the load sensor 4 during the impedance measurement by the above-described second operation or after the impedance measurement, a part of the weight of the test subject distributed on the left foot is measured by the load sensor 4. ), The function of measuring postural balance on the left and right of the body is performed.

Unlike the conventional apparatus, the posture balance measuring function of the present invention, unlike the conventional device, the load sensor 4 exists only on the left foot, and in grasping the change in posture balance, a part of the weight distributed to the left foot It is characterized by relatively grasping the weight of the left foot and the right foot.

Figure 3 shows the change over time of the balance of the posture of the left and right body, as shown in the graph a, the difference between the load added to the left foot and the load applied to the right foot changes within a certain range in a healthy person, As shown in b, those with problems with postural balance are beyond the standard range.

2 is a schematic diagram of an electric circuit of the present invention.

2, the device 12 and the electrode for generating the load sensor 4, the left foot electrode 1, the right foot electrode 2, and the sinusoidal wave alternating current I are shown in FIG. Impedance measurement circuit 14, which includes a device 13 for measuring the difference in voltage (V) of the liver, microprocessor 15 for controlling the calculation, storage, display, etc. using the measured and input data, gender, age, And an input key 7 for inputting subject information such as height, a display screen 8 for displaying results of body weight, body fat mass, posture balance, etc., and a printer 11 for outputting results. It measures the body fat amount by measuring the bioelectrical impedance and simultaneously measures the postural balance.

Fig. 4 is a schematic diagram in which the load sensor 4 is provided before and after the foot in the present invention. Fig. 4 (a) is a plan view and Fig. 4 (b) is a front sectional view.

In installing the load sensor 4, unlike FIG. 1, it is installed before and after the foot, and it is possible to measure not only the balance of the left and right sides of the body, but also the posture balance of the front and rear of the body.

Figure 5 is a schematic diagram showing how the subject measures the body fat and posture balance using a weight scale according to the present invention.

The impedance value of the foot is measured through the left foot electrode 1 and the right foot electrode 2, and at the same time, the balance is measured by measuring the change of the center of the left foot loaded through the load sensor 4.

Fig. 6 is a schematic configuration diagram further providing a hand electrode 9 in contact with the palm of the present invention.

Fig. 6 (a) shows an example of the hand electrode 9 in which the electrodes 19a and 19a are arranged in the circumferential direction of the cylindrical body 20 held by hand, and Fig. 6 (b) shows the outer circumference of the cylindrical body 20. An example of the hand electrode 9 in which the electrodes 19b and 19b are disposed above and below the axial direction is shown in FIG. 6C. The thumb of the end of the electrode 19c and the cylindrical body 20 on the outer periphery of the cylindrical body 20 is shown. An example of the hand electrode 9 in which the contact electrode 9d is arranged is shown. In each drawing, the electrode 19 is connected to the electric circuit part 6 shown in FIG.

As shown in Fig. 7, the hand-held electrode 9 is held in the palm of the hand, the soles are brought into contact with the electrodes 1 and 2, and the switch of the electric circuit section 6 is switched to measure the impedance for each part. Therefore, the subject can measure the fat in the body for each part through the hand electrode 9 further installed in the measurement of body fat and postural balance using the weight scale according to the present invention.

The component of the present invention minimizes the components of the device by using the load sensor only on one foot, and can conveniently measure the body balance, the body composition, which affects the body composition, muscle strength, and nervous system disease, which are highly related to the mutual measurement. Can be. By simultaneously performing the time for impedance measurement of the human body and the time for monitoring the posture balance, there is an effect of the invention that two tests can be performed with one device of the present invention.

Simple modifications or changes of the present invention can be easily carried out by those skilled in the art, and all such modifications or changes can be seen to be included in the scope of the present invention.

Claims (9)

It consists of a load sensor 4, an electronic circuit section 6, an input key 7 for inputting personal information of the subject, and a display screen 8, and can measure body fat using a bioelectrical impedance method. In the scale having the function that there is, A support 5 for supporting the entire apparatus, a load sensor 4 provided on the support, a load measuring stand 3 provided on the load sensor, and a load measuring stand 3, which are mounted on the The left foot electrode 1 and the right foot electrode 2 installed on the support 5 and raising the right foot are in contact with each other. ) To measure body weight by stepping on the foot, and to measure body impedance by measuring the impedance when stepping on the right foot electrode 2 with the right foot open in the second operation, and to continuously measure the load on the left foot to measure postural balance. Scale having a function. The weight scale according to claim 1, wherein the load sensor has a posture balance measurement function installed on the right foot. The weight scale according to claim 1, wherein two or more load sensors provided on the left foot are provided before and after the foot, and have a function of measuring posture balance in the front and rear directions. The weight scale according to claim 3, wherein the load sensors provided on the left and right sides are mounted on the right foot to measure postural balance. According to claim 1, when holding with both hands, the palm and fingers are each provided with a pair of electrodes in contact with the hand further, using the electronic switch provided between the electrode and the electronic circuit to control the input of the current and the output of the voltage Body weight by having a posture balance measurement function having an impedance measurement function for each part. The weight scale according to claim 5, wherein a load sensor provided on the left foot is installed on the right foot to measure postural balance. The method according to claim 1, wherein the electrodes provided on the measuring table are removed, and the body fat is measured by measuring the impedance of the hand electrode of claim 5 with a pair of electrodes placed on each hand, and the posture is measured using a separate measuring table. A weight scale having a function of measuring balance. The weight scale according to claim 7, wherein a load sensor provided on the left foot is installed on the right foot to measure postural balance. The body composition weight scale according to any one of claims 1 to 7, wherein the load sensors are respectively installed at the lower part of the right foot and the left foot, and have a posture balance measuring capability in one operation.