KR102570452B1 - Body composition analysis method using 3D scan - Google Patents

Abstract

According to the present invention, a body composition analysis method using 3D scans comprises: a first measurement step in which a load cell provided on a turntable measures body weight; a second measurement step of measuring bioimpedance by using an electrode unit; a third measurement step of measuring the body shape of a subject through a scanning unit and by using the rotation of the turntable; and a body composition analysis step of extracting a first analysis value obtained by analyzing the body composition of the subject through a measured weight value, a bioimpedance value, and body shape data. The body composition analysis step includes: analyzing the first body fat mass of the first analysis value and a second body fat mass analyzed by underwater body weight measurement; comprising the first body fat mass with the second body fat mass to extract a correction rate; and reanalyzing the first analysis value according to the correction rate to extract a second analysis value. Therefore, the reliability of analysis results can be improved.

Description

Body composition analysis method using 3D scan {Body composition analysis method using 3D scan}

The present invention relates to a body composition analysis method using a 3D scan.

In general, bioimpedance measurement devices (or body composition analysis devices) are widely used to measure body fat and the like. Among the components of the body, muscle has a lot of water, whereas fat has no water. Accordingly, the bioimpedance value decreases when there is a lot of muscle and increases when there is a lot of fat.

By measuring bioimpedance, it is possible to easily calculate the amount of body water, muscle mass, body fat mass, etc. of the subject to be measured.

These devices attach electrodes to body parts, for example, both hands and feet, select one pair of the electrodes according to the measurement site, apply a current signal for measurement, and select an appropriate electrode pair according to the measurement site. The bioimpedance is measured by measuring the voltage at both ends thereof. For example, if a current is applied from the left arm to the right arm and then a voltage drop from the left arm to the left leg is measured, the bioimpedance of the left arm, which is an overlapping section, can be measured.

On the other hand, the above-described body composition analyzer using bioimpedance is commercialized in various ways and is classified in various ways according to the frequency or measurement algorithm used.

The body composition analysis method using such bioimpedance measures body resistance (Bio Impedence) due to moisture according to the difference in water content of fat and muscle constituting the body, and estimates the amount of fat and muscle according to the difference.

However, the amount of water contained in the body varies greatly from person to person, and even the same person inevitably has a large variation in moisture depending on the situation at the time of measurement.

In order to reduce this deviation, the body composition analysis is corrected by using various frequencies for each channel to distinguish differences or by statistical analysis of pre-entered auxiliary information such as age, gender, weight, and height of the user and pre-constructed big data. are doing

In addition, correction such as utilizing the volume through 3D modeling of the subject's body may be performed.

However, the above-described conventional body composition analysis has not yet solved the problem of being sensitive to variations in moisture.

Korean Registered Patent No. 10-1448562 Korean registered patent 10-0627240 Republic of Korea Patent Publication 10-2017-0108461

An object of the present invention, which was made to solve the above problems, is to analyze the first body fat mass using bioimpedance and the second body fat mass using underwater weighing method, and then compare the first body fat mass and the second body fat mass. By extracting the correction rate and correcting the first analysis value using bioimpedance according to the extracted correction rate to provide the second analysis value, more accurate body composition analysis is performed and the reliability of the analysis result can be improved. It is to provide a body composition analysis method using a scan.

According to the body composition analysis method using a 3D scan of the present invention for achieving the above object, a first measuring step of measuring weight by a load cell provided on a turntable; a second measuring step of measuring biological impedance with an electrode unit; a third measurement step of measuring a body shape of a subject through a scan unit by rotation of the turntable; and a body composition analysis step of extracting a first analysis value obtained by analyzing the subject's body composition through the measured weight value, bioimpedance value, and body shape data, wherein the body composition analysis step comprises: After analyzing the first fat mass and the second fat mass analyzed by the underwater weighing method, the first fat mass and the second fat mass are compared to extract a correction rate, and the first analysis value is reanalyzed according to the correction rate to obtain a second fat mass. It is characterized in that the analysis value is extracted.

In addition, the first body fat percentage and the first body fat amount are analyzed through the bioimpedance value and the weight value, and the second body fat percentage is the volume value and the weight value analyzed for each body of the subject from the 3D modeling data of the scan unit. It is analyzed by [Equation 1] or [Equation 2] according to the underwater body weight measurement method by using, and the second body fat mass is characterized in that it is analyzed through the second body fat percentage and weight value.

[Equation 1]

(Siri Formula) BF (%) = [4.95 ÷ ρ (g/cm ³ ) - 4.50] × 100

[Equation 2]

(Brozek Formula) BF (%) = [4.57 ÷ ρ (g/cm ³ ) - 4.142] × 100

(ρ = body density)

In addition, the correction rate is a value obtained by dividing a value obtained by subtracting the first body fat mass from the second body fat mass by the first body fat mass, and in the body composition analysis step, the pre-calculated first body fat rate, first muscle mass, first skeletal muscle mass, At least one of the second body fat percentage, the second muscle mass, the second skeletal muscle mass, the second body fat mass, and the second lean mass by correcting the first analysis value including at least one of the body fat mass and the first lean mass according to the correction rate. It is characterized by extracting a second analysis value including.

In addition, the first measurement step and the third measurement step are measured at different time periods, and the first measurement step measures the weight in a state where the turntable is stopped for a certain period of time before or after the turntable rotates, In the second measuring step, the bioimpedance is measured at different time points while the first measuring step and the third measuring step are performed, respectively, and the second measuring step and the third measuring step are measured at the same time point. In the body composition analysis step, after analyzing the first body fat amount of the first analysis value and the second body fat mass analyzed by the underwater weighing method, the first body fat mass and the second body fat mass are compared to extract a correction rate, and the first body fat mass is extracted. A second analysis value is extracted by reanalyzing the analysis value according to the correction rate, and the load cell includes two or more weight sensors provided on both sides of the turntable, each at a predetermined weight measurement time interval at a predetermined number of times. A weight balance analysis step of measuring weight values from weight sensors of each and analyzing the weight balance of the subject from the measured weight values; is further included.

As described above, the effect of the present invention is to analyze the first body fat mass using bioimpedance and the second body fat mass using underwater weighing method, compare the first body fat mass and the second body fat mass, extract the correction rate, and extract the extracted By correcting the first analysis value using the bioimpedance according to the correction rate and providing the second analysis value, a body composition analysis method using 3D scan can not only achieve more accurate body composition analysis but also improve the reliability of the analysis result. can provide

In addition, the present invention relates to the first measurement step of measuring bio-impedance and the measurement of the subject's body composition in order to compensate for the disadvantage that conventional body composition analysis by impedance measurement fluctuates according to the moisture deviation of the subject's metabolic state at the time of measurement. By making the time zone of the third measuring step for measuring body volume the same, the first body fat mass based on the bio-impedance value measured at the same time point in the subject's metabolic state at the same time and the second body fat mass based on the underwater weighing method are compared and corrected. A body composition analysis method using a 3D scan capable of providing a second analysis value by extracting the ratio and correcting the first analysis value according to the extracted correction rate may be provided.

1 is a perspective view showing a body composition analyzer according to a preferred embodiment of the present invention.
2 is a perspective view showing a turntable of a body composition analyzer according to a preferred embodiment of the present invention.
3 is a block diagram showing a body composition analyzer according to a preferred embodiment of the present invention.
4 is a flowchart illustrating a body composition analysis method using a 3D scan according to a preferred embodiment of the present invention.
5 is a diagram showing a static center of gravity analysis according to a body composition analysis method using a 3D scan according to a preferred embodiment of the present invention.
6 is a diagram showing a dynamic center of gravity analysis according to a body composition analysis method using a 3D scan according to a preferred embodiment of the present invention.
7 is a diagram for explaining an additional embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining a body composition analysis method using 3D scan according to embodiments of the present invention.

First, the body composition analyzer 100 for explaining a body composition analysis method using a turntable will be described with reference to FIGS. 1 to 3 .

The body composition analyzer 100 includes a turntable 110, a handle part 120, a rotation part 130, a body composition measurement part 140, a scan part 150, a controller 160, a body composition analyzer 170, and a body weight. A balance analysis unit 180 is included.

The turntable 110 is rotatably provided and includes a load cell 111 and a first electrode unit 113.

The load cell 111 may include two or more weight sensors 112 provided on both sides of the turntable 110, respectively. The use of a plurality of weight sensors 112 is to minimize bias on weight values.

For example, when the subject is standing on the turntable 110, the weight sensors 112 may be provided at positions corresponding to the left and right feet. At this time, the upper and lower parts of the left foot may be distinguished, and weight sensors 112 may be provided on the left and right sides of each of the upper and lower parts of the left foot. That is, four weight sensors 112 may be provided on the left foot and four weight sensors on the right foot. Here, since the number of weight sensors 112 may be provided with 8 or more or less, it is not limited thereto.

The first electrode unit 113 may include electrode terminals capable of measuring bio impedance.

For example, the first electrode unit 113 includes a left foot electrode terminal consisting of a pair of electrodes for measuring the bio impedance of the left foot and a right foot electrode terminal consisting of a pair of electrodes for measuring the bio impedance of the right foot. can do.

At this time, the pair of electrodes described above is composed of a voltage electrode for detecting voltage and a current electrode for detecting current. In addition, an AC signal of 1KHz to 1MHz may be applied to each electrode at a fine current size of about 0.1 to 3.0mA. In addition, since a method for measuring bio-impedance is a known technique, a detailed description thereof will be omitted.

The handle part 120 is provided on both sides of the turntable 110, and the second electrode part 122 is provided so that it may be formed as a pair.

At this time, in the handle part 120, the gripping part 121 formed so that the subject can grip the palm of the subject may be formed at the top, and the gripping part 121 may be provided with the second electrode part 122. there is. Also, the length of the handle 120 may be adjusted vertically.

For example, the second electrode unit 122 is a left hand electrode terminal composed of a pair of electrodes for measuring the bio impedance of the left hand on the left grip part 121, and the bio impedance of the right hand on the right grip part 121. A right hand electrode terminal consisting of a pair of electrodes for measurement may be included.

The rotating unit 130 may rotate the turntable 110 . At this time, the rotation unit 130 may rotate the turntable 110 by 360°.

The body composition measurement unit 140 may measure bioimpedance measured by the first electrode unit 113 and the second electrode unit 122 .

For example, the body composition measurement unit 140 may measure lower body impedance between the left and right feet from the first electrode unit 113 and upper body impedance between the left and right hands from the second electrode unit 122 . In addition, from the first electrode unit 113 and the second electrode unit 122, the diagonal impedance between the left foot and the right hand, the right foot and the left hand, the vertical impedance between the left foot and the left hand, and the right foot and the right hand. may, but is not limited thereto.

The scan unit 150 may 3D scan the body of the subject located on the turntable 110 .

At this time, the scanning unit 150 is provided apart from the turntable 110, and includes three or more 3D scanner sensors 151 and 3D scanner sensors 151 to scan the body of the subject in upper, middle, and lower parts. The 3D modeling unit 152 that models the subject's body with the scanned data and analyzes the 3D modeling data modeled from the 3D modeling unit 152 to determine the subject's height, chest circumference, waist circumference, arm length, and lower body length , a body shape analysis unit 153 that analyzes a body shape by measuring the size of each body part, such as upper body length and thigh circumference.

That is, when the scan unit 150 scans the subject with the 3D scanner sensor 151, the subject's body is modeled with a pre-programmed program, and the size of the subject's body is measured by analyzing the modeled 3D modeling data. can do.

The controller 160 may control the rotation unit 130 , the body composition measuring unit 140 , and the scanning unit 150 .

Specifically, the control unit 160 first controls the rotation unit 130 so that the turntable 110 does not rotate when standing on the turntable 110, so that the subject's weight is measured by the load cell 111, and then, After the measurement of the measurer's weight is completed, the turntable 110 may be rotated 360° by controlling the rotation unit 130 so that the body of the measureee may be 3D scanned from the scan unit 150 .

Conversely, when the subject gets on the turntable 110, the control unit 160 controls the rotation unit 130 to rotate the turntable 110 360° so that the subject's body is 3D scanned from the scan unit 150. Then, after the turntable 110 rotates 360°, the weight of the subject can be controlled to be measured from the load cell 111.

That is, the control unit 160 may control the rotation unit 130 for rotating the turntable 110 and the scanning unit 150 not to be performed simultaneously.

Here, the controller 160 may control the body composition measuring unit 140 to operate while the rotating unit 130 and the scanning unit 150 operate respectively.

For example, if the weight is measured while the turntable 110 rotates by the rotation unit 130, resistance, that is, the body may partially shake while the subject rotates, and the gripper 121 is strongly gripped by the shaking. As a result, weight may be measured inaccurately.

In other words, in order to prevent inaccurate measurement of body weight, the control unit 160 controls the rotation unit 130 so that the turntable 110 before or after scanning the subject on the turntable 110 does not rotate, so that the turntable ( 110) can measure the weight for a certain period of time when it does not rotate.

Here, in the body composition analyzer 170, which will be described later, when the time for measuring and analyzing bioimpedance is about 60 seconds, it may be desirable to perform the weight and scan within 60 seconds.

For example, while the subject is standing on the turntable 110, the control unit 160 may allow the weight to be measured without rotating the turntable 110 for about 10 seconds. After 10 seconds have elapsed, if the turntable 110 is rotated by 360° in about 50 seconds, the scan of the subject's body is completed.

That is, since the measurement of bioimpedance can be completed in 60 seconds, if the time for weight measurement and scanning are divided and proceeded at different times, the measurement of body weight, body scan, and measurement of bioimpedance can be performed in about 60 seconds at the minimum time. Since the body composition can be accurately measured while in the body, not only can the body composition be measured and analyzed efficiently, but also the reliability of the analysis result can be secured.

The body composition analyzer 170 may analyze body composition through the weight value measured by the load cell 111, the bioimpedance value measured by the body composition measurement unit 140, and the 3D modeling data generated by the scan unit 150. , the result of the analysis may be referred to as a first analysis value.

For example, the body composition analyzer 170 may analyze the subject's body composition and degree of obesity through bioimpedance values, weight values, and 3D modeling data. Body composition can be divided into first body water, first muscle mass (protein, mineral), and first body fat mass, and through first skeletal muscle and fat analysis, first skeletal muscle mass and first body fat mass can be analyzed, and through obesity analysis The first BMI (body density index) and the first body fat percentage can be analyzed.

Meanwhile, the body composition analyzer 100 may further include a weight balance analyzer 180 .

The weight balance analysis unit 180 may measure weight values from each weight sensor 112 at a preset weight measurement time interval at a preset number of times, and analyze the weight balance of the subject from the measured weight values. there is.

For example, the preset number of times is 6 times, and the preset weighing time may be 0.5 to 1.5 seconds.

That is, the weight value is measured for each preset number of times, and one weight sensor 112 may measure a total of six weight values for each preset weight measurement time.

Here, the weight balance analyzer 180 may analyze the static center of gravity.

In the static center of gravity analysis, the first average weight value is analyzed from the weight values measured from each weight sensor 112 for each number of times, and the first average weight value analyzed for each weight sensor 112 is analyzed. The static weight balance of the subject can be determined by analyzing the coordinates of the static center of gravity. At this time, the first weight average value means a value obtained by dividing by 6 (the number of times) after adding the six weight values measured by one weight sensor 112 .

For example, a first average weight value is analyzed from six weight values measured for each weight sensor 112 by number of times. At this time, the first weight average value of each weight sensor 112 may be analyzed. In addition, among the plurality of first average weight values corresponding to the plurality of weight sensors 112, the largest value may be analyzed as a static center of gravity coordinate.

Referring to FIG. 5 , static barycentric coordinates may be displayed on the display unit.

Also, the weight balance analyzer 180 may analyze the dynamic center of gravity.

In the dynamic center of gravity analysis, a plurality of dynamic center of gravity coordinates of the subject may be analyzed from weight values measured from each weight sensor 112 for each number of times.

For example, among the weight values measured once, the largest value may be analyzed as dynamic center of gravity coordinates. Since a total of 6 weight measurements are performed, the dynamic center of gravity coordinates may be 6.

At this time, referring to FIG. 6 , in the dynamic center of gravity analysis, the static weight balance of the subject may be determined by connecting the dynamic center of gravity coordinates every number of times (at the time of analysis) and analyzing the movement path of the dynamic center of gravity coordinates.

In this way, by measuring the weight balance of the subject, the posture of the subject can be grasped. In addition, for posture distortion, the weight balance of the subject is analyzed as a specific position, which can be predicted as distortion of the spine, pelvis, and the like. In addition, through 3D modeling data, posture distortion information can be accurately determined, and the risk of musculoskeletal disorders can be determined. An exercise prescription service capable of correcting posture may be provided based on such analysis and judgment.

For example, drifting in an upright position can occur if the lower body muscles are weak. In order to understand this drifting, the static center of gravity and the dynamic center of gravity are analyzed.

In addition, even if the static center of gravity and the dynamic center of gravity are close to the center of the body, if the drifting is severe, it can be determined that there is a problem in developing the muscles of the lower body, and an exercise prescription service can be provided to correct this.

For reference, a desirable weight balance may refer to a state in which the turntable 110 is standing upright corresponding to a previously displayed sole mark, and the static and dynamic center of gravity coordinates are located at the center based on the sole mark.

Here, the body composition analyzer 170 analyzes the second average weight value of the weight values measured by each weight sensor 112 for each number of times, and takes the average of the second average weight values for each number of analyzed times as the body weight value. can be analyzed. At this time, the second weight average value refers to a value obtained by adding the weight values measured by the plurality of weight sensors 112 and dividing by the number of weight sensors 112 . And, the weight value refers to a value obtained by dividing the 6 second average weight values by 6 (number of times).

Also, the body composition analyzer 170 may analyze a value obtained by summing a plurality of first average weight values and dividing the result by the number of weight sensors 112 as a weight value.

As described above, since the measured weight value can be used to analyze the weight value of the subject in various ways, it is not limited to the above description.

Meanwhile, the body composition analyzer 170 analyzes the first body fat mass and the second body fat mass, compares the first body fat mass and the second body fat mass, extracts a correction rate, and corrects the first analysis value according to the extracted correction rate. It can be re-analyzed with the second analysis value. In this case, the correction rate may be expressed as a percentage, but is not limited thereto.

The first body fat percentage may be analyzed through the aforementioned bioimpedance value, weight value, and 3D modeling data. In addition, the first body fat mass may also be analyzed.

The second body fat percentage can be analyzed by the underwater weighing method using the volume value and weight value analyzed for each body of the subject from the 3D modeling data of the scan unit 150 .

The formula of the underwater body weight measurement method is as follows [Equation 1] and [Equation 2], and the second body fat percentage can be analyzed with either one.

[Equation 1]

(Siri Formula) BF (%) = [4.95 ÷ ρ (g/cm3) - 4.50] × 100

[Equation 2]

(Brozek Formula) BF (%) = [4.57 ÷ ρ (g/cm3) - 4.142] × 100

(ρ = body density)

Also, body density can be analyzed as the product of body weight and body surface area. At this time, the weight value measured and analyzed by the load cell 111, and the body surface area may use the volume value analyzed from 3D modeling data.

In addition, the second body fat amount may be analyzed through the weight value and the second body fat rate. At this time, the second body fat mass can be analyzed through [Equation 3], but is not limited thereto. At this time, since [Equation 3] is a well-known equation, a detailed description thereof will be omitted. That is, the second body fat amount can be analyzed through the second body fat percentage and the weight value.

[Equation 3]

Body fat percentage: (fat mass ÷ body weight) × 100

That is, the second body fat percentage and the second body fat mass can be analyzed using the underwater weighing method.

Here, the underwater weight measurement method (underwater body density method) measures the body weight and volume underwater while the subject is submerged in water, and then measures the body weight again outside the water. The volume is calculated by calculating the difference in volume of the water before and after the subject enters the water in consideration of the temperature of the water, and then measuring or calculating the remaining volume of the subject (the amount of air remaining in the lungs, intestines, and other parts of the body) to correct the volume. value to get the final volume (body density). Using the obtained body density value, the body fat percentage is calculated. This underwater weighing method can analyze body fat percentage with an accuracy of less than 2% through the average density of the body calculated from weight and volume. In other words, by using the formula of the underwater body weight measurement method with high accuracy, a correction rate is extracted through comparison between the first body fat mass and the second body fat mass to be described later, and the extracted correction rate is applied to other analysis values, A second analysis value more accurate than the first analysis value may be finally calculated.

A correction rate may be extracted by comparing the first body fat mass and the second body fat mass.

For example, the correction rate may be a value obtained by subtracting the first body fat mass from the second body fat mass by the first body fat mass, but is not limited thereto. At this time, in the correction rate, the second body fat amount may be used as a true value and the first body fat amount may be used as a measured value.

According to the correction rate extracted in this way, the body composition analyzer 170 includes the first body fat percentage, the first muscle mass, the first skeletal muscle mass, the first body fat mass, and the first lean body mass already analyzed by the body composition analyzer 170. The second analysis value including the second body fat percentage, the second muscle mass, the second skeletal muscle mass, the second body fat mass, and the second lean mass may be extracted by correcting the first analysis value according to the correction rate.

Accordingly, the finally analyzed second body fat percentage, second muscle mass, second skeletal muscle mass, second body fat mass, and second lean fat mass are more accurate second analysis values, and reliability in body composition analysis can be improved.

Meanwhile, the body composition analyzer 100 includes a display unit for displaying measurement results, a storage unit for storing measurement result data, a control unit capable of manipulating each component, and information necessary for body composition analysis or for managing the subject. An input unit for input may be further included.

Hereinafter, a body composition analysis method using 3D scan using the above-described body composition analyzer 100 will be described in detail, but the same description as the above-described body composition analyzer 100 analysis method will be omitted.

Referring to FIG. 4 , the body composition analysis method using 3D scan according to the present invention includes a first measurement step (S10), a second measurement step (S20), a third measurement step (S30), and a body composition analysis step (S40). can include

First, in the first measuring step (S10), the load cell 111 provided on the turntable 110 measures the body weight.

In the second measuring step (S20), bioimpedance is measured by the electrode unit.

In the third measuring step ( S30 ), the body shape of the subject is measured through the scanning unit 150 by rotating the turntable 110 .

In the body composition analysis step (S40), a first analysis value obtained by analyzing the subject's body composition may be extracted through the measured weight value, bioimpedance value, and body shape data. At this time, the body composition analysis step (S40) may be analyzed by the body composition analysis unit 170.

At this time, in the body composition analysis step (S40), after analyzing the first body fat amount of the first analysis value and the second body fat amount analyzed by the underwater weighing method, the first body fat amount and the second body fat amount are compared to extract a correction rate, A second analysis value may be extracted by reanalyzing the first analysis value according to the correction rate.

Also, the first body fat percentage and the first body fat amount may be analyzed through a bioimpedance value and a weight value.

[Equation 1] or [Equation 2] can be analyzed as

In addition, the second body fat mass can be analyzed by [Equation 3] through the second body fat percentage and the weight value.

The aforementioned correction rate may be a value obtained by dividing a value obtained by subtracting the first body fat mass from the second body fat mass by the first body fat mass.

At this time, in the body composition analysis step (S40), the first analysis value including any one or more of the previously calculated first body fat percentage, first muscle mass, first skeletal muscle mass, first body fat mass, and first lean body mass is determined according to a correction rate. After correction, a second analysis value including any one or more of the second body fat percentage, the second muscle mass, the second skeletal muscle mass, the second body fat mass, and the second lean mass may be extracted.

Meanwhile, it is preferable to measure the first measuring step (S10) and the third measuring step (S30) at different time zones.

For example, after the first measuring step (S10) has been performed for a certain time, the third measuring step (S30) is performed, or after the third measuring step (S30) has been performed, the first measuring step (S10) is performed for a certain time can be made, so it is not limited to either one.

That is, in the first measuring step (S10), before or after the turntable 110 rotates, the weight is measured in a state where the turntable 110 is stopped for a predetermined time.

In the second measuring step (S20), the bio impedance is measured while the first measuring step (S10) and the third measuring step (S30) are respectively performed at different times.

Then, the second measuring step (S20) and the third measuring step (S30) are measured in the same time zone.

For example, when the subject stands on the turntable 110 and holds the gripping part 121 with both hands, the weight of the subject is measured by the load cell 111 and the bio impedance measurement starts. Then, the bioimpedance measurement is continuously maintained, and the turntable 110 rotates after a predetermined time after the weight is measured, and the body of the subject is scanned. At this time, the measurement of the body impedance is completed when the body scan is completed.

Meanwhile, the body composition analysis method using the 3D scan of the present invention may further include a weight balance analysis step (S50).

The weight balance analysis step (S50) is analyzed by the weight balance analysis unit 180. That is, in the weight balance analysis step (S50), each weight value is measured from each weight sensor 112 at a preset weight measurement time interval at a preset number of times, and the weight balance of the subject is analyzed from the measured weight values. can do.

More specifically, the weight balance analysis step (S50) may include a static center of gravity analysis step and a dynamic center of gravity analysis step.

5, in the static center of gravity analysis step, the weight average value is analyzed from the weight values measured from each weight sensor 112 for each number of times, and the first weight analyzed for each weight sensor 112 is analyzed. The static weight balance of the subject may be determined by analyzing the coordinates of the center of gravity of the subject from the average values. In this case, the static center of gravity coordinates may be the position of the weight sensor 112 at which the largest value among the first average weight values is measured.

Referring to FIG. 6 , in the dynamic center of gravity analysis step, a plurality of dynamic center of gravity coordinates of the subject may be analyzed from the weight values measured by each weight sensor 112 for each number of times.

At this time, in the dynamic center of gravity analysis step, a static weight balance of the subject may be determined by connecting a plurality of dynamic center of gravity coordinates at each analysis and analyzing a movement path of the dynamic center of gravity coordinates.

Here, the coordinates may correspond to the position of the weight sensor 112.

On the other hand, in the body composition analysis step (S40), the second weight average value of the weight values measured from each weight sensor 112 is analyzed for each number of times, and the average of the second weight average values for each number of times analyzed is used as the weight value. can be analyzed.

Meanwhile, the turntable 110 may include a case in which the load cell 111 is provided, and a waterproof material (GS) and a functional additive (G) applied to the outer surface of the case.

The waterproof material GS is applied to the outer surface of the case and may include 5 parts by weight of urethane (compared to 0.1 parts by weight of polyurethane foam described later). The waterproof material GS adds waterproofness to the case by including urethane.

Referring to Figure 7, the functional additive (G) is a first buffer material (G1) containing 0.1 parts by weight of polyurethane foam; an endothelial material (G2) including 0.1 part by weight of polypropylene with respect to 0.1 part by weight of the polyurethane foam and surrounding the first cushioning material (G1); an outer cover material (G3) containing 0.1 part by weight of latex, wrapped around the inner cover material (G2), but having a fibrous shape, and mixed with the waterproof material (GS); a second cushioning material (G4) containing 0.2 parts by weight of tetradecane and disposed between the inner cover material (G2) and the outer cover material (G3); A plurality of posts (G5) including 0.1 part by weight of aluminum and provided on the outer side of the outer covering material (G3); a plurality of coupling members (G6) including 0.1 parts by weight of styrene butadiene rubber, provided on the outside of each of the plurality of posts (G5) and having a width decreasing toward the outside; an anionic polymer material (G7) containing 0.1 part by weight of p-styrenesulfonic acid (SSNa) and provided at either end of both ends of the outer covering material (G3); and a cationic material (G8) including 0.1 part by weight of polyethyleneimine and provided at the other end of both ends of the outer covering material (G3).

The weight parts of the functional additive (G), such as polypropylene, latex, tetradecane, aluminum, styrene butadiene rubber, p-styrenesulfonic acid, and polyethyleneimine, are described based on 0.1 parts by weight of the polyurethane foam.

As described above, the first cushioning material G1 includes polyurethane foam and is disposed inside an inner covering material G2 to be described later. Polyurethane foam is used in various fields and is porous, so it was used to add buffer and sound insulation in the functional additive (G).

The above polyurethane foam is preferably included in 0.1 parts by weight. If it is less than 0.1 parts by weight, the above buffering and soundproofing effects cannot be sufficiently expected, and if it exceeds 0.1 parts by weight, there is a risk of leaking from the inner cover material G2 by bursting the inner cover material G2 described later.

The inner skin material G2 is disposed inside the outer skin material G3 to be described later, and includes 0.1 parts by weight of polypropylene as described above and surrounds the first cushioning material G1.

If the amount of polypropylene is less than 0.1 parts by weight, the first buffer material (G1) may not be sufficiently covered and the first buffer material (G1) may be lost. can improve

The polypropylene described above may be manufactured in the form of a film and wrap the first buffer material G1 by a method such as thermal fusion in a state of wrapping the first buffer material G1. That is, the first cushioning material G1 may be disposed inside the inner covering material G2.

The outer skin material G3 is an extensible material containing 0.1 part by weight of latex, and may be fibrous while wrapping the inner skin material G2 (the inner skin material G2 and the second cushioning material G4 to be described later). The above covering material (G3) is mixed with the above waterproofing material (GS).

Since the outer covering material (G3) is fibrous, it is possible to add toughness to the functional additive (G).

As will be explained in more detail later in the description, a second cushioning material G4 is disposed between the outer cover material G3 and the inner cover material G2, so the outer cover material G3 will wrap the second buffer material G4. If the latex is less than 0.1 part by weight, the second buffer material (G4) cannot be sufficiently covered and there is a risk of loss of the second buffer material (G4), and if it exceeds 0.1 part by weight, the weight of the functional additive (G) By excessively increasing the dispersibility of the functional additive (G) may be reduced.

The second buffer material G4 contains 0.2 parts by weight of tetradecane and is disposed between the inner cover material G2 and the outer cover material G3.

Tetradecane is a Phase Change Material (PCM) with a melting point of about 4-6°C.

Phase change materials are energy storage materials that can actively store and release heat without external factors in the form of latent heat without temperature change when the phase changes according to the surrounding temperature.

In general, when a phase change occurs, latent heat, which is heat entering and leaving without a temperature change, has a significantly higher calorific value than sensible heat, which is heat entering and exiting with a temperature change without accompanying a phase change. Using this feature, it can be used to store a high amount of thermal energy or to maintain temperature.

In order to change the melting point, the second buffer material G4 includes undecane, dodecane, tridecane, pentadecane, hexadecane, hexadecane, At least one of heptadecane, octadecane, nonadecane, eicosane, and triacontane may be further included. The melting point of the second buffer material G4 may be controlled within the range of 1 to 30° C., which is room temperature.

The second cushioning material G4 may cover the inner covering material G2 in a solid state and may be accommodated inside the outer covering material G3. The latex may wrap the second cushioning material G4 in a solid state on a sheet and be fixed by various known methods such as adhesive or fusion (thermal fusion) to cover the second cushioning material G4.

The above-described first cushioning material G1 may contract or expand as the temperature changes, and in particular, the volume of air accommodated in the pores may also contract or expand. When the first shock absorbing material G1 is contracted, the shock absorbing effect of mitigating shock is reduced.

At this time, the second buffer material G4 supplies latent heat to the first buffer material G1 to suppress the thermal contraction of the second buffer material G4, thereby suppressing the decrease in buffering properties of the second buffer material G4. .

In addition, since the second cushioning material G4 absorbs external heat, the first buffering material G1 expands as the temperature rises, damages the inner covering material G2, and can be suppressed from being discharged to the outside.

As described above, the second buffer material (G4) has a melting point of 4 to 6 ° C, so that the waterproof material (GS) can be prevented from falling below 0 ° C., thereby preventing condensation from being formed, and the waterproof material (GS) can be By suppressing thermal contraction, wrinkling or cracking of the waterproofing material GS can be suppressed.

It is preferable that the second buffer material G4 is disposed outside the first buffer material G1. Since the first buffer material G1 has an insulating performance, the second buffer material G4 may be disposed on the outside of the first buffer material G1. ) When disposed on the inner side, it is difficult to expect the above-described effect by interfering with heat exchange between the waterproofing material GS and the second cushioning material G4.

As described above, the second buffer material (G4) includes 0.2 parts by weight of tetradecane. If it is less than 0.2 parts by weight, it is difficult to expect a heat buffering effect, and if it exceeds 0.2 parts by weight, it is difficult to expect the above-mentioned outer shell material (G3). difficult to place in

The anionic polymer material (G7) is provided on either end (the left end in FIG. x) of both ends of the outer shell (G3), and may include p-styrenesulfonic acid, in addition to the hydrogel pre-polymer may further include. The anionic polymer material (G7) may be a mixture of p-styrenesulfonic acid and a hydrogel pre-polymer (1:19 ratio) and UV curing.

P-styrenesulfonic acid is preferably included in an amount of 0.1 part by weight. If less than 0.1 part by weight is used, the negative charge is not sufficient, and if it exceeds 0.1 part by weight, the weight of the functional additive (G) is excessively increased to reduce dispersibility. There is a problem.

The cationic material G8 may be provided at the other end (right end in FIG. x) of both ends of the cover material G3.

Polyethyleneimine included in the cationic material (G8) is a polymer polymerized with ethyleneimine and is known to have the highest cationic density among existing materials.

Illustratively, each of the cationic material (G8) and the anionic polymer material (G7) is heat-sealed to the outer cover material (G3) in a state of being stacked on a polyethylene (PE) film or latex or attached by an adhesive to the outer cover material. It may be provided on the outside of (G3).

The posts G5 include 0.1 part by weight of aluminum, but are provided on the outside of the cover material G3, may have a column shape, and may be arranged in plurality at predetermined intervals on the outer surface of the cover material G3. Aluminum is used because it is a light metal, and when it exceeds 0.1 parts by weight, the functional additive (G) becomes too heavy and dispersibility deteriorates, and when it is less than 0.1 parts by weight, its length or width is excessively reduced, resulting in reduced durability.

Illustratively, the inner end of the post G5 may be attached to the outside of the outer covering material G3 by a known adhesive or the like. As another example, the outer cover material G3 may have a fitting groove recessed inward from an outer surface thereof, and an inner end portion of the post G5 may be inserted into and fitted into the fitting groove.

Each of the plurality of coupling members (G6) is provided on the outside of each of the plurality of posts (G5), but the width may decrease toward the outside.

Here, the inner side may mean the center side of the functional additive (G), and the outer side may mean the radial direction side from the center side.

A plurality of units (GU) of the functional additive (G) may be included in the waterproofing material (GS). When stirring in the waterproofing material (GS), neighboring units (GU) are separated by shear force and the waterproofing material (GU) is separated from the waterproofing material (GS). GS), functional additives (G) and other additives can improve agitation.

After mixing or in the process of applying the waterproof material (GS) to the case or after being applied to the case, neighboring units (GU) are brought closer to each other by the electrostatic attraction between the anionic polymer material (G7) and the cationic material (G8), , The coupling member (G6) of any one of the neighboring units (GU) (hereinafter referred to as the first unit) is elastically deformed (compressive deformation) by including styrene butadiene rubber (SBR), and the neighboring units ( GU) enters between a plurality of coupling members (G6) provided on the outside of the other (hereinafter referred to as the second unit).

When the coupling member (G6) of the first unit passes between the coupling members (G6) of the second unit, the anionic polymer material (G7) of the first unit and the cationic material (G8) of the second unit are electrostatically charged. They can be attached to each other by attraction, and the above-described coupling member G6 of the first unit unit can have an original shape in which the width decreases toward the outside after being elastically restored.

At this time, the inner end of the coupling member G6 of the first unit and the inner ends of the coupling members G6 of the second unit unit are mutually supported and interlocked (hung coupling) to prevent the first and second units from being separated from each other. Thus, adjacent units GUs are coupled to each other, and expansion of the waterproofing material GS due to heat is suppressed by the electrostatic attraction of the neighboring units GUs, and toughness can be added to the waterproofing material GS.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the scope of the claims to be described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are construed as being included in the scope of the present invention. It should be. In addition, the operation sequence of the components described in the above process does not necessarily have to be performed in a time-series order, and even if the execution sequence of each configuration and step is changed, if the gist of the present invention is satisfied, these processes will fall within the scope of the present invention. Of course you can.

100: body composition analyzer 110: turntable
111: load cell 112: weight sensor
113: first electrode part 120: handle part
121: grip part 122: second electrode part
130: rotating unit 140: body composition measuring unit
150: scan unit 151: 3D scanner sensor
152: 3D modeling unit 153: body shape analysis unit
160: control unit 170: body composition analysis unit
180: weight balance analysis unit
S10: first measurement step S20: second measurement step
S30: Third measurement step S40: Body composition analysis step
S50: Weight balance analysis step

Claims (4)

A first measuring step in which a load cell provided on the turntable measures weight;
a second measuring step of measuring biological impedance with an electrode unit;
a third measurement step of measuring a body shape of a subject through a scan unit by rotation of the turntable; and
A body composition analysis step of extracting a first analysis value obtained by analyzing the body composition of the subject through the measured weight value, bioimpedance value, and body shape data;
In the body composition analysis step, after analyzing the first body fat amount of the first analysis value and the second body fat amount analyzed by the underwater weighing method, the first body fat amount and the second body fat amount are compared to extract a correction rate, and the The first analysis value is reanalyzed according to the correction rate to extract the second analysis value,
The first body fat percentage and the first body fat mass are analyzed through the bioimpedance value and the weight value,
The second body fat percentage is analyzed by [Equation 1] or [Equation 2] according to the underwater weight measurement method using the volume value and weight value analyzed for each body of the subject from the 3D modeling data of the scan unit,
The second body fat mass is analyzed through the second body fat percentage and weight value,
[Equation 1]
(Siri Formula) BF (%) = [4.95 ÷ ρ (g/cm ³ ) - 4.50] × 100
[Equation 2]
(Brozek Formula) BF (%) = [4.57 ÷ ρ (g/cm ³ ) - 4.142] × 100
(ρ = body density)
The correction rate is a value obtained by subtracting the first body fat mass from the second body fat mass divided by the first body fat mass,
In the body composition analysis step, the first analysis value including any one or more of the pre-calculated first body fat percentage, first muscle mass, first skeletal muscle mass, first body fat mass, and first lean mass is corrected according to the correction rate, Extracting a second analysis value including any one or more of 2 body fat percentage, 2 muscle mass, 2 skeletal muscle mass, 2 body fat mass, and 2 lean body mass;
The first measurement step and the third measurement step are measured at different time zones,
In the first measuring step, before or after the turntable rotates, the weight is measured in a state where the turntable is stopped for a predetermined time,
In the second measuring step, the bioimpedance is measured during the first measuring step and the third measuring step at different times, respectively;
The second measurement step and the third measurement step are measured at the same time period,
The load cell includes two or more weight sensors provided on both sides of the turntable,
A weight balance analysis step of measuring a weight value from each weight sensor at a predetermined weight measurement time interval at a predetermined number of times and analyzing the weight balance of the subject from the measured weight values; further comprising,
The weight balance analysis step,
The first average weight value is analyzed from the weight values measured by each weight sensor for each number of times, and the static center of gravity coordinates of the subject are analyzed from the first average weight values analyzed for each weight sensor. A static center of gravity analysis step of determining a static weight balance; and
A dynamic center of gravity analysis step of analyzing a plurality of dynamic center of gravity coordinates of the subject from the weight values measured from each weight sensor for each number of times;
In the dynamic center of gravity analysis step, the static weight balance of the subject is determined by connecting the plurality of dynamic center of gravity coordinates at each analysis and analyzing the movement path of the dynamic center of gravity coordinates. Body composition analysis using 3D scan, characterized in that method. delete delete delete

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