KR20040011847A - Body composition analyzing device and measuring method - Google Patents

Abstract

PURPOSE: A body component analyzer and a method for measuring a body component are provided to measure accurately the impedance of human body by using an electrode installed at an upper part of a body weight measuring scale. CONSTITUTION: A body component analyzer measures impedance and weight by using the current and analyzes a body component by using the measured values. The body component analyzer includes a couple of heel guide parts and a plurality of electrodes(21a,21b,21c,21d). The electrodes(21a,21b,21c,21d) are installed at both ends of the heel guide parts. The body component analyzer further includes the impedance measurement part, a weight measurement part, a data input part, and a central calculation process part. The impedance measurement part is formed with a drive circuit and an impedance detector.

Description

Body composition analyzing device and measuring method

The present invention measures the body weight while measuring the impedance of the human body in close contact with the heel side of the upper side of the body scale, and calculates the body composition to increase the accuracy by analyzing the body composition and at the same time have a high reproducibility body composition analyzer and body composition analysis It is about a method.

In general, a method of determining obesity by setting the weight minus 90 as the standard weight has been widely used, but this measurement value has been developed by various body composition methods because there is a problem that the error is too great for each individual. . Such body composition measurement methods are known as underwater weight method, skin hold method, heavy water dilution method, ultrasonic method and bioelectrical impedance analysis method.

Here, the bioelectrical impedance analysis method is a method of analyzing the body components by measuring the impedance of the human body while supplying a minute current to the human body, the body fat tissue containing the body moisture, electrolytes, muscles, etc. is assumed to be a conductor, human body components The fat part with low conductivity is a method of analyzing body composition based on the measured impedance, assuming an insulator.

1 and 2 are schematic views showing a body composition analyzer and a body composition analysis method according to the prior art.

In the conventional body composition analysis method, as shown in FIG. 1, the electrodes 2 and 3 are attached to the hands 1a and the feet 1b of the subject 1 by using an attachment tool such as a clip or an adhesive tool. After measuring the impedance by energizing and then calculating the measured value to analyze the body composition, it is called a four-electrode bioimpedance analysis method.

The conventional four-electrode analysis method has a problem that accurate measurement by the public is difficult because the measurement result is accurate, but it is necessary to attach the electrodes (2,3) at the correct position to enable accurate measurement. The position at which the electrodes 2 and 3 are attached is changed every time the measurement causes an error, thereby reducing the reliability of the measured value.

As another conventional method, there is a method of fixing the position of the electrode to the scaffold as shown in Figure 2 and measuring the body weight while measuring the body impedance at the same time by contacting the sole of the foot, but the sole contact with the electrode Moisture such as sweat is easily generated, calluses and other contaminants can be easily generated, and measurement error occurs depending on the size of the foot of the measurer.

The present invention has been made to solve the above problems of the prior art, as shown in Figures 3 and 4 the heel portion on the electrodes (21a, 21b, 21c, 21d) installed on the upper portion of the body scale 20 of the body composition analyzer It has the advantage of being able to measure human impedance at the same position at all times regardless of the size of the foot, and it is possible to measure body composition analyzer and analysis method that can not only make accurate measurement without expert assistance but also improve the reproducibility of the measured value. The purpose is to provide.

1 is an exemplary view of a body composition analysis method according to the prior art.

Figure 2 is an illustration of another body composition analysis method according to the prior art.

3 is an exemplary view showing a configuration of a body composition analyzer according to the present invention.

4A is a side view of a body composition analyzer according to the present invention.

4b is a plan view of a body composition analyzer according to the present invention.

5 is a block diagram of a body composition analyzer according to the present invention;

6 is a view for explaining the body composition analysis method according to the present invention.

<Explanation of symbols on main parts of the drawings>

1-Subject 2, 3, 21a, 21b, 21c, 21d-Electrode

20-Scale 30-Impedance measurement unit

31-Drive circuit 32-Impedance detector

33-Load sensors 35a, 35b-Heel guide

40-memory section

50-Data input unit 60-Main operation processing unit

71-display unit 100-body composition analyzer

Body composition analyzer according to the present invention in close contact with the side of the heel on the electrode of the upper body weight, and through the close electrode to the current through the human body to measure the body impedance and at the same time to measure the body composition to the body composition analyzer In the electrode for measuring the impedance of the human body is characterized in that the heel side of both feet contact.

In addition, the body composition analyzer according to the present invention is characterized in that the electrode to which the foot is connected is installed on the upper part of the scale.

In addition, the body composition analysis method according to another aspect of the present invention in the body composition analysis method for analyzing the body composition by measuring the impedance by making the heel side of both feet close to the electrode and through the current, measuring the impedance while measuring the weight at the same time In order to conduct the current to the current, the measurer comprises the step of contacting the heel side of both feet to the installed electrode of the scale.

Hereinafter, an embodiment of the body composition analyzer 100 of the present invention will be described with reference to the accompanying drawings.

3 is a view showing the configuration of a body composition analyzer according to the present invention, FIG. 4A is a side view of the body composition analyzer according to the present invention, FIG. 4B is a plan view of the body composition analyzer according to the present invention, and FIG. 5. Is a block diagram of a body composition analyzer according to the present invention, and FIG. 6 is a view for explaining a method for analyzing body composition according to the present invention.

In the body composition analyzer according to the present invention, as shown in FIGS. 3 to 4, the subject 1 closely contacts the sides of the heel to the electrodes 21a, 21b, 21c, and 21d installed on the upper part of the scale, and the height of the subject, After inputting personal data such as age and gender, if the measurement start button is pressed and held, the weight and impedance of the subject are automatically measured at the same time, and the measured values are input to the main calculation processing unit 60 and used as information for body composition analysis. It is supposed to be.

At this time, especially the part where the subject 1 and the electrodes 21a, 21b, 21c, and 21d are in contact with each other at the side of the heel may have high reproducibility because they are in contact with each other at almost the same position. In addition, the side of the heel close to the electrode has a low moisture content such as sweat, and it is an area that is almost free of calluses or other contaminants. You can have it.

Heel guide parts 35a and 35b that can be inserted by heel guide to the rear of the body composition analyzer of the present invention, that is, the rear of the body scale 20 in order to have high precision and reproducibility in analyzing the body composition as described above. ), And each of the electrodes 21a, 21b, 21c, and 21d in contact with the heel side portions on both sides of the heel guide portion. Each of the electrodes should be configured on the side surface of the guide portion spaced apart by a predetermined distance from the bottom surface of the guide portion.

FIG. 5 is a block diagram illustrating the composition of the body composition analyzer according to the present invention. The drive circuit 31 is configured to conduct a microcurrent to two current electrodes of the electrodes 21a, 21b, 21c, and 21d and another two voltages of the electrodes. Through an electrode, the impedance of the human body (1) to be measured is connected to an impedance measuring unit (30) consisting of a human body impedance detecting unit (32) for detecting the human body's impedance by measuring the voltage of the human body generated by energizing a human body. Is measured, and at the same time the weight is measured through the load sensor 33 of the scale, and the measured value is stored in the memory unit 40. The memory 40 may store various other information in addition to the weight and human body impedance measurement values, such as height, gender, age, etc. of the subject 1. The personal information of the subject 1 may be directly input by the subject 1 through the data input unit 50.

The memory unit 40 is connected to the main operation processor 60, and measures personal data such as height, age, and gender of the subject 1 input through the data input unit 50, and measures weight and body impedance. Various information such as values are stored, and the stored data is moved to the main operation processing unit 60. The main operation processing unit 60 may calculate various types of information stored in the memory unit 40 to analyze the body composition and output the same through the display unit 71. Of course, this configuration is the same as the principle of the conventional body composition analyzer of the bioimpedance method.

The body composition analysis performed in the main calculation processing unit 60 may be performed by various methods. As in the usual case, the correction formula used in the calculation is determined based on clinical data, and as a result, the body water amount, body fat amount, and body fat percentage. , Obesity, body mass index, basic metabolic rate, and the like.

The body composition analysis method according to the present invention is well represented in the flow chart of FIG. As shown, the subject 1 inputs data such as height, gender, and age, which are personal information, through the data input unit 50. The subject 1 inputs the above information and then maintains the standing posture by placing the heel side of both feet at the measurement position.

As described above, when the subject 1 is positioned at the measurement position, the weight of the subject 1 transmitted to the scale 20 is measured by the scale 20, and other information is stored in the memory unit 40. In the same manner as described above, the drive circuit 31 conducts a microcurrent to the human body through two current electrodes of the electrodes. Thereafter, the human body's impedance is detected by the human body impedance detecting unit 32 by measuring the voltage of the human body generated when the current is energized through two voltage electrodes among the power poles of the drive circuit 31, and the result is the memory unit. 40 is stored.

In this way, the information stored in the memory unit 40 is transmitted to the main operation processing unit 60, the main operation processing unit 60 analyzes the body composition of the subject 1 on the basis of the input personal information and weight and body impedance measurement values Done. Thereafter, the result is output through the display unit 71.

On the other hand, the method of the measuring electrode can be configured as a two-electrode method using a common electrode as well as a current electrode and a voltage electrode as described above, and the shape of the electrode is a rectangular shape for convenience Various modifications can be used.

An example of the results of the body composition analysis measured using the present invention using the method as described above and the conventional clip or attachment tool is shown in Table 1 below.

Measure Prior art Invention One 385 370 390 371 370 371 388 370 384 371 2 621 615 618 614 630 615 634 615 628 614 3 501 498 505 497 499 499 508 498 510 498 4 720 725 728 726 725 725 720 725 719 726 5 325 318 327 319 330 318 334 318 331 318

As shown in Table 1, five impedances were measured for each of five subjects, and the results obtained using the body composition analyzer according to the present invention were different from those measured in the prior art. It can be seen that there is little high reproducibility.

As described above, the body composition analyzer and the body composition analysis method according to the present invention measure the human impedance through the heel side of both feet using the electrode installed on the upper part of the scale, so that the contact area is less polluted by moisture or foreign matter. Since the heel side has almost no callus, the contact resistance generated during the measurement is small, so accurate measurement is possible. In addition, the impedance of the human body is measured by closely attaching the heel side of both feet to the electrode regardless of the size or shape of the foot, so that accurate measurement can be performed without the help of an expert. Because of this, it provides an effect having high reproducibility.

The present invention is not limited to the above embodiments, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

Claims (3)

In the body composition analyzer which analyzes body composition by measuring the impedance and measuring the weight at the same time through the current, A pair of heel guide portions 35a and 35b which protrude from the rear portion of the scale that constitutes the body composition analyzer to guide the heel portion of the subject to be inserted are configured, respectively, at both ends of the pair of heel guide portions. And an electrode (21a, 21b, 21c, 21d) configured to be in contact with the heel of the subject. The method of claim 1, The body composition analyzer includes a central operation processor 60 for processing the information input from the impedance measuring unit 30, the load measuring unit 33, and the information input from the data input unit 50, The impedance measuring unit 30 may include a drive circuit 31 for applying a microcurrent to a pair of electrodes selected from the pair of electrodes, and a pair of electrodes, and another pair of electrodes may be used to supply current to a human body. Body composition analyzer, characterized in that it consists of an impedance detector (32) for measuring the impedance. In the body composition analysis method which analyzes the body composition by measuring the body impedance and measuring the body impedance while passing a current through the body at the same time, Both heels of the subject are inserted into the heel guide portions 35a and 35b respectively protruding from the rear portion of the weight scale constituting the body composition analyzer to insert the heel portion of the subject. And measuring the body impedance when the current flows through the electrode through the electrode after being in close contact with the electrodes 21a, 21b, 21c, and 21d respectively configured at the stage. .