KR101880693B1 - Apparatus and method of calculating push-off angle using human motion data - Google Patents

Abstract

The present invention is a technique for calculating a push-off angle using motion information of a human body, and an apparatus for analyzing skating ability evaluation index according to one embodiment comprises: a sensing data collection unit collecting at least one sensing information measured at at least one human body part; a calculation unit calculating the push-off angle from the collected sensing information; and an analyzer analyzing the skating ability evaluation index based on the calculated push-off angle.

Description

[0001] APPARATUS AND METHOD OF CALCULATING PUSH-OFF ANGLE USING HUMAN MOTION DATA [0002] BACKGROUND OF THE INVENTION [0003]

The present invention relates to a technique for calculating a push-off angle using human body motion information, and relates to a technical idea that can develop evaluation and training of a skating, will be.

And a recovery operation. Of these, the push-off operation is also referred to as a pushing operation, which is a pushing operation until the knee is straightened at a right angle in the advancing direction.

On the other hand, the turning operation is a step in which the pushed foot is turned back while leaving the glazing surface, and the burning operation which occupies about 80% in the entire stroke time is an operation to move toward the proceeding direction by the pushing-off driving force.

In the straight line, the push-off operation, the turning operation, and the burning operation are repeated, and this repetition operation is an important factor for determining the skating speed. Particularly, the push-off operation is an operation that can obtain a driving force not only in skating but also in a racing game such as running, and can be a most important factor for increasing the speed.

The push-off operation can generate various forces in the three-dimensional direction around the surface of the earth. The push-off angle is directly related to the effective push-off operation. Therefore, the push-off angle is used as an important index for evaluating the skating ability.

To measure the push-off angle, a ground reaction force should be measured. To do this, a force plate should be installed on the ice link, a low pressure sensor should be inserted into the skate shoes of the athletes, or a strain gauge should be installed on the skate shoes.

However, it is not technically possible to install a force plate on the ice link, and skate shoes are manufactured to fit the feet of the athletes, making it difficult to insert a low pressure sensor.

In addition, attaching strain gauges to skate shoes can interfere with the skater's movement.

Conventionally, the push-off angle has been calculated by measuring the ground reaction force and the human body motion together, but it is difficult to apply to the actual skating coaching due to the difficulty in measuring the ground reaction force.

US Patent No. 5052682 entitled "Skating motion simulator" US Patent Publication No. US20030100422 "Method and device for stacking flat-folded boxes"

The object of the present invention is to measure only the human body motion and calculate a precise push-off angle.

The present invention aims at accurately evaluating skill levels of athletes by scientific and quantitative evaluation of athlete's skating technique.

The present invention aims at improving the skill of skater players by enabling problem analysis and scientific training of the skater technique of the athletes.

The present invention aims at enabling an accurate and convenient evaluation of a terrestrial equiprinting item in which a push-off angle is used as an important evaluation index.

The apparatus for analyzing skating ability evaluation index according to an embodiment includes a sensing data collecting unit for collecting at least one sensing information measured at at least one or more human body parts, a push-off angle calculating unit for calculating a push-off angle from the collected sensing information, And an analyzer for analyzing the skating ability evaluation index based on the calculated push-off angle.

The calculation unit may calculate the push-off angle from the center-of-gravity position and the ankle center position, which are identifiable from the collected sensing information.

The calculation unit may calculate a push-off vector in a direction from the ankle center position to the center of gravity position.

The calculation unit may calculate a first component in the surface projection direction of the force generated in the skating blade and a second component in the direction perpendicular to the surface of the ground from the ankle center position and the center of gravity position, The push-off vector may be calculated by applying a unit unit to each of the first component and the second component.

The calculation unit may calculate a magnitude of the push-off vector from the calculated first component and the second component.

The calculation unit may calculate a weight distribution of the human body part and a posture of the human body from the at least one human body part information collected from the plurality of sensors, The position of the center of gravity can be calculated in consideration of the attitude of the human body.

The calculator according to an embodiment may estimate the ankle center position from measurement data on body size.

The calculation unit may estimate the ankle center position of the right leg and the ankle center position of the left leg separately from the measurement data of the body size and discriminate the ankle center position of the left leg from the measured ankle center position using the separately estimated ankle center position A push-off angle can be calculated.

The calculation unit may estimate an ankle center position of the right leg based on an inner peach bone position of the right leg and calculate an ankle center position of the left leg based on an outer peach bone position of the left leg, Can be estimated.

The processor includes a calculation unit for calculating a current center of gravity position from at least one or more posture information of a human body part, and an identification unit for identifying an ankle center position from at least one or more ankle markers attached to the center of the ankle, The identifying unit identifies and identifies the ankle center position of the right leg and the ankle center position of the left leg, and the calculating unit can calculate the push-off angle using the separately estimated ankle center position have.

The identification unit may identify a right ankle center position from an ankle marker attached to an inner peach bone of the right leg and identify a left ankle center position from an ankle marker attached to an outer peach bone of the left leg Wherein the calculation unit calculates a push-off angle with respect to the right leg using the center-of-gravity position and the identified right-ankle center position, and calculates a push-off angle with respect to the center- A push-off angle with respect to the left leg can be calculated using the center position.

A method of analyzing a skating ability evaluation index according to an embodiment includes the steps of collecting at least one sensing information measured at at least one human body part, calculating a push-off angle from the collected sensing information, And analyzing the skating ability evaluation index based on the calculated push-off angle.

According to an exemplary embodiment of the present invention, the calculating step further includes the steps of: identifying a center-of-gravity position and an ankle center position from the collected sensing information, and determining the push-off angle ), And calculate a push-off vector in a direction from the ankle center position to the center of gravity position.

Calculating the first component in the surface projection direction of the force generated in the skating blade from the ankle center position and the center of gravity position and the second component in the direction perpendicular to the surface of the ground, And calculating the push-off vector by applying a unit unit to each of the calculated first component and the second component.

The calculating step according to an embodiment may include a step of confirming a weight distribution of a human body part and a posture of a human body from the information of the at least one human body part collected from a plurality of sensors, Calculating a position of the center of gravity in consideration of the attitude of the human body, estimating the ankle center position of the right leg and the ankle center position of the left leg separately from the measurement data on the body size, And calculating the push-off angle using the separately estimated ankle center position.

According to one embodiment, a precise push-off angle can be calculated by measuring only human motion.

According to one embodiment, the scientific and quantitative evaluation of the athlete's skating technique can accurately assess the athlete's skill level.

According to one embodiment, problem analysis and scientific training of the skating technique of the athletes is possible, and the skill of the skating athletes can be improved.

According to one embodiment, an accurate and convenient evaluation of a land is sprinting item in which the push-off angle is used as an important evaluation index is possible.

1 is a view for explaining a skating ability evaluation index analyzing apparatus according to an embodiment.
2 is a view for explaining a push-off angle measured from a human body part during skating.
3 is a view for explaining the ankle center position according to the characteristics of the skating blade.
4 is a diagram illustrating a processor according to one embodiment.
5 is a view for explaining a method of analyzing a skating ability evaluation index according to an embodiment.
FIGS. 6 and 7 are graphs for comparing the push-off angle based on the ground reaction force and the calculated push-off angle according to the present invention.

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are presented for the purpose of describing embodiments only in accordance with the concepts of the present invention, May be embodied in various forms and are not limited to the embodiments described herein.

Embodiments in accordance with the concepts of the present invention are capable of various modifications and may take various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that there is no intention to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes modifications, equivalents, or alternatives falling within the spirit and scope of the present invention.

The terms first, second, or the like may be used to describe various elements, but the elements should not be limited by the terms. The terms may be named for the purpose of distinguishing one element from another, for example without departing from the scope of the right according to the concept of the present invention, the first element being referred to as the second element, Similarly, the second component may also be referred to as the first component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Expressions that describe the relationship between components, for example, "between" and "immediately" or "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", and the like, are used to specify one or more of the features, numbers, steps, operations, elements, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

1 is a view for explaining an apparatus 100 for analyzing a skating ability evaluation index according to an embodiment.

The present invention can calculate a precise push-off angle by measuring only human motion.

Specifically, in the present invention, the push-off angle can be calculated using the center of gravity defined by the weight distribution of the human body part and the posture of the human body, and the ankle center position measured by the body size measurement data.

For this purpose, the apparatus 100 for analyzing skating ability evaluation index according to an embodiment may include a sensing data collection unit 110, a calculation unit 120, and an analysis unit 130.

The sensing data collection unit 110 may collect at least one sensing information measured in at least one human body region.

The calculation unit 120 may calculate a push-off angle from the collected sensing information.

For example, the calculation unit 120 may calculate a push-off angle from the center-of-gravity position and the ankle center position, which are identifiable from the collected sensing information.

At this time, a push-off vector in a direction from the ankle center position toward the center of gravity position can be calculated.

Generally, the short track skating blade is not positioned precisely in the center of the skating shoe but is biased inward toward the skating movement direction. In consideration of this, the calculation unit 120 may calculate the first component of the surface projection direction of the force generated on the skating blade from the ankle center position and the gravity center position. Further, the calculation unit 120 may calculate the push-off vector by calculating a second component in the direction perpendicular to the surface and applying a unit unit to each of the calculated first component and second component.

The calculation unit 120 may calculate the magnitude of the push-off vector from the calculated first component and the second component, for example, by using the first and second components as factors, The magnitude of the off vector can be calculated.

The sensing information can be interpreted as gyro sensor, RFID, marker identification information, and the like, and can be interpreted as information that can represent movement of a human body part.

The calculation unit 120 can check the weight distribution of the human body part and the posture of the human body from the at least one human body part information collected from the plurality of sensors. In addition, the center of gravity position can be calculated by considering the weight distribution of the identified human body parts and the attitude of the human body.

The analysis unit 130 according to an embodiment may analyze the skating ability evaluation index based on the calculated push-off angle.

The calculator 120 may estimate the ankle center position from measurement data on body size. At this time, the calculation unit 120 can estimate the ankle center position of the right leg and the ankle center position of the left leg separately from the measurement data on the body size in consideration of the position of the skate blade. Further, the calculation unit 120 may calculate the push-off angle using the separately estimated ankle center position.

As a specific example, the calculation unit 120 may separately estimate the ankle center position of the right leg and the ankle center position of the left leg from the measurement data on the body size, and use the estimated ankle center position to determine the push- the push-off angle can be calculated. In particular, the calculation unit 120 may estimate the ankle center position of the right leg based on the inner peach bone position of the right leg. Conversely, the calculation unit 120 can estimate the ankle center position of the left leg based on the outer peach bone position of the left leg.

As a result, the skating ability evaluation index analyzing apparatus 100 according to an embodiment calculates the push-off angle using the center of gravity defined by the weight distribution of the human body part and the body posture and the ankle center position measured by the body size measurement data Can be calculated. This makes it possible to accurately assess the skill level of the athletes through a scientific and quantitative assessment of the athlete's skating skills. In addition, it is possible to evaluate the competitiveness of the athlete's skating technique and scientific training to improve the competence of the skater, and to make accurate and convenient evaluation of the athletic sprinting event where the push-off angle is used as an important evaluation index Do.

2 is a view 200 illustrating a push-off angle measured from a human body part during skating.

Referring to FIG. 2, the skating ability evaluation index analyzing apparatus can calculate the push-off angle a using the center-of-gravity position 210 through the calculation unit.

For example, the skating ability evaluation index analyzing apparatus can check the weight distribution of the human body part and the posture of the human body from the information of the at least one human body part collected from the plurality of sensors through the calculation unit, And the position of the center of gravity in consideration of the attitude of the recognized human body.

)를 계산할 수 있다.In a more specific embodiment, the calculation unit first calculates the push-off angle (a) using Equation (1)

) Can be calculated.

[Equation 1]

와

는 각각 y축 z축 방향으로의 단위 방향 벡터(unit direction vector)에 해당한다. 또한,

는 지표면 투영 방향의 제1 콤포넌트,

는 지표면 수직 방향의 제2 콤포넌트로 해석될 수 있다.In Equation (1)

Wow

Correspond to unit direction vectors in the y-axis and z-axis directions, respectively. Also,

A first component in the surface projection direction,

Can be interpreted as a second component in the surface normal direction.

)를 계산할 수 있다.Next, the calculation unit calculates the size of the push-off vector (

) Can be calculated.

&Quot; (2) "

는 지표면 투영 방향의 제1 콤포넌트,

는 지표면 수직 방향의 제2 콤포넌트로 해석될 수 있다.Also,

A first component in the surface projection direction,

Can be interpreted as a second component in the surface normal direction.

)를 계산할 수 있다.That is, the calculation unit applies the Pythagorean theorem to the first component in the direction of the ground surface projection and the second component in the direction perpendicular to the ground surface to determine the size of the push-

) Can be calculated.

)와 [수학식 2]에서 계산한 푸시오프 벡터의 크기(

)를 이용해서 푸시오프 각도를 계산할 수 있다.Further, the calculation unit may calculate the push-off vector (

) And the size of the push-off vector calculated in [Equation 2] (

) Can be used to calculate the push-off angle.

The calculation unit can calculate the push-off angle through the following equation (3).

&Quot; (3) "

3 is a view for explaining the ankle center position according to the characteristics of the skating blade.

In the present invention, as shown in reference numeral 310, the ankle center position is estimated in consideration of the structural characteristics of the short track skating shoe. Specifically, as shown at reference numeral 320, the ankle center position of the right leg can be identified as the right ankle center position corresponding to the inner peach bone corresponding to the reference numeral 321. [ In addition, the outer peach bone corresponding to reference numeral 322 can be identified as the left ankle center position.

Further, the calculation unit can calculate the push-off angle based on the position of the inner peach bone in the calculation of the push-off angle of the right leg and the position of the outer peach bone in the calculation of the push-off angle of the left leg.

In order to accurately identify the position of the inner peach bone and the outer peach bone, a marker may be used in the present invention. For example, the ankle center position can be estimated by attaching a marker to the inner peach bone position on the right leg and attaching a marker to the outer peach bone position on the left leg.

4 is a diagram illustrating a processor 400 in accordance with one embodiment.

The processor 400 according to an embodiment can calculate the push-off angle more precisely using the estimated ankle center position by distinguishing the left and right ankles.

To this end, the processor 400 may include a calculation unit 410 and an identification unit 420.

The calculation unit 410 may calculate the current center of gravity position from the posture information of at least one human body part.

In addition, the identification unit 420 according to an embodiment may identify an ankle center position from at least one or more ankle markers attached to the ankle center.

For example, the identification unit 420 distinguishes and identifies the ankle center position of the right leg and the ankle center position of the left leg, and the calculation unit 410 calculates the push-off angle &thetas; the push-off angle can be calculated.

Specifically, the identifying unit 420 can identify the ankle center position from the ankle marker attached to the inner peach bone of the right leg. In addition, the identifying unit 420 can identify the left ankle center position from the ankle marker attached to the outer peach bones of the left leg.

The calculation unit 410 may calculate a push-off angle with respect to the right leg using the center-of-gravity position and the identified right-ankle center position, and calculate the push-off angle with respect to the center- Can be used to calculate the push-off angle for the left leg.

5 is a view for explaining a method of analyzing a skating ability evaluation index according to an embodiment.

The method of analyzing skating ability evaluation index according to an exemplary embodiment may collect at least one sensing information measured in at least one human body region (step 501).

In addition, the skating ability evaluation index analysis method can identify the center of gravity position and the ankle center position (step 502), and calculate the first component in the surface projection direction and the second component in the surface vertical direction (step 503). That is, from the ankle center position and the center-of-gravity position, the first component in the surface projection direction and the second component in the vertical direction of the ground surface with respect to the force generated in the skating blade can be calculated.

Next, the method of analyzing the skating ability evaluation index according to an embodiment may calculate a push-off vector by applying a unit unit to each of the first component and the second component (step 504). For example, the method of analyzing the skating ability evaluation index includes calculating a push-off angle using the identified center-of-gravity position and ankle center position, and calculating a push-off angle in the direction from the ankle center position to the center- a push-off vector can be calculated.

The method of analyzing the skating ability evaluation index according to an exemplary embodiment may calculate a push-off vector by applying a unit unit to each of the calculated first component and second component.

Also, in order to calculate the center of gravity position, the method of analyzing the skating ability evaluation index can check the weight distribution of the human body part and the attitude of the human body from at least one human body part information collected from the plurality of sensors. That is, the position of the center of gravity can be calculated by considering the weight distribution of the identified human body part and the attitude of the human body.

On the other hand, the skating ability evaluation index analysis method can estimate the ankle center position of the right leg and the ankle center position of the left leg separately from the measurement data on the body size. In addition, the push-off angle can be calculated using the separately estimated ankle center position.

Further, the method of analyzing the skating ability evaluation index according to an embodiment may analyze the skating ability evaluation index based on the calculated push-off angle (step 505).

FIGS. 6 and 7 are graphs for comparing the push-off angle based on the ground reaction force and the calculated push-off angle according to the present invention.

6, the horizontal axis of the graph 610 represents the total straight phase in units of%, and the vertical axis represents the push-off angle in degrees.

The center portion of the graph showing the push-off phase is enlarged and more specifically, reference numeral 611 denotes the push-off phase measured with respect to the medial ankle marker. Reference numeral 612 denotes a push-off phase measured based on the external ankle marker, and 613 denotes a push-off angle based on a ground reaction force.

As shown in the graph 610, when the push-off angles calculated using only the push-off angle operation calculated by measuring both the ground reaction force and the human body movement are compared, the push-off angles calculated by using the inner peach bone position of the right leg Off angle using the ground reaction force and an error of less than 1.2 degrees can be seen.

On the other hand, the graph 620 of FIG. 7 shows that the push-off angle calculated using the outer peach bone position of the left leg shows an error of 1.8 degrees or less from the push-off angle using the ground reaction force.

Similarly, the horizontal axis of the graph 620 in FIG. 7 represents the total straight phase in units of%, and the vertical axis expresses the push-off angle in degrees.

In more detail, enlarging the center portion of the graph representing the push-off phase, reference numeral 621 denotes the push-off phase measured with respect to the medial ankle marker. Reference numeral 622 denotes a push-off phase measured based on the external ankle marker, and reference numeral 623 denotes a push-off angle based on a ground reaction force.

As a result, using the present invention, a precise push-off angle can be calculated by measuring only human motion. In addition, the scientific and quantitative evaluation of the athlete 's skating skill can accurately evaluate the skill level of the athletes, analyze the problem of the athlete' s skating skill, and enable scientific training, thereby improving the skill of the athlete. In addition, it is possible to evaluate accurately and conveniently on the land sprinting items where the push-off angle is used as an important evaluation index.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: Skating ability evaluation index analyzer
110: sensing data collecting unit
120:
130:

Claims (15)

A sensing data collecting unit collecting at least one sensing information measured at at least one human body part;
A calculation unit for calculating a push-off angle from the collected sensing information; And
And an analyzer for analyzing the skating ability evaluation index based on the calculated push-off angle,
The calculation unit may calculate,
And calculates the push-off angle from the center-of-gravity position and the ankle center position that are identifiable from the collected sensing information. delete The method according to claim 1,
The calculation unit may calculate,
And calculates a push-off vector in a direction from the ankle center position to the center of gravity position. The method of claim 3,
The calculation unit may calculate,
Calculating a first component in a surface projection direction of the force generated in the skating blade from the ankle center position and the gravity center position and a second component in a direction perpendicular to the surface of the ground,
And calculates the push-off vector by applying a unit unit to each of the first component and the second component. 5. The method of claim 4,
The calculation unit may calculate,
And calculates the size of the push-off vector from the calculated first component and the second component. The method according to claim 1,
The calculation unit may calculate,
The weight distribution of the human body part and the posture of the human body are confirmed from the at least one human body part information collected from the plurality of sensors and the weight distribution of the human body part and the determined attitude of the human body, An apparatus for analyzing a skating ability evaluation index for calculating a center position. The method according to claim 1,
The calculation unit may calculate,
And estimating the ankle center position from measured data on body size. 8. The method of claim 7,
The calculation unit may calculate,
The ankle center position of the right leg and the ankle center position of the left leg are separately discriminated from the measurement data on the body size,
And calculates the push-off angle using the separately estimated ankle center position. 9. The method of claim 8,
The calculation unit may calculate,
Estimating an ankle center position of the right leg based on an inner peach bone position of the right leg and estimating an ankle center position of the left leg based on an outer peach bone position of the left leg. A calculation unit for calculating a current center of gravity position from attitude information of at least one human body part; And
And an identification unit for identifying an ankle center position from at least one or more ankle markers attached to the ankle center,
Wherein the identification part identifies and identifies an ankle center position of a right leg and an ankle center position of a left leg,
Wherein the calculation unit calculates a push-off angle using the separately estimated ankle center position. 11. The method of claim 10,
Wherein,
Identifying a right ankle center position from an ankle marker attached to an inner peach bone of the right leg, identifying a left ankle center position from an ankle marker attached to an outer peach bone of the left leg,
The calculation unit may calculate,
Calculating a push-off angle with respect to the right leg using the center of gravity position and the identified right ankle center position,
And calculating a push-off angle for the left leg using the center of gravity position and the identified left ankle center position. Collecting at least one sensing information measured at at least one body part;
Calculating a push-off angle from the collected sensing information; And
And analyzing the skating ability evaluation index based on the calculated push-off angle,
Wherein the calculating step comprises:
Calculating a push-off angle using the identified center-of-gravity position and an ankle center position, identifying the center-of-gravity position and the ankle center position from the collected sensing information, And calculating a push-off vector in a direction toward the center of gravity position. delete 13. The method of claim 12,
Wherein the calculating step comprises:
Calculating from the ankle center position and the center-of-gravity position a first component in a surface projection direction with respect to a force generated in the skating blade and a second component in a direction perpendicular to the ground surface; And
And calculating the push-off vector by applying a unit unit to each of the calculated first component and the second component. 13. The method of claim 12,
Wherein the calculating step comprises:
Confirming a weight distribution of a human body part and a posture of a human body from the at least one human body part information collected from a plurality of sensors;
Calculating the center-of-gravity position in consideration of the determined weight distribution of the human body part and the determined posture of the human body;
Estimating distinction between an ankle center position of a right leg and an ankle center position of a left leg from measured data on a body size; And
And calculating the push-off angle using the separately estimated ankle center position.

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