철봉 몸 펴 Jaeger 동작의 운동학적 분석

강순용 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study was to investigate the kinematical variables of the Jaeger Stretched motion on the horizontal bar using the 2-dimensional cinematographic method. Subjects were 4 National ranked gymnasts of H University. The subject's Jaeger stretched motion was filmed with S-VHS camera at the speed of 60fields per second and digitized the each field from 5 fields before the start the handstand motion to landing. And the Kwon3D 2.1 version program was employed to obtain 2-dimensional data. Based on the results of this study, the following conclusions are drawn: 1. In the down swing phase, it is considered that the maintained of appropriated shoulder and hip joint angle and the fast angular velocity, upward and downward velocity are the important variables an the handstand motion. These will affect the large hip angle and fast downward velocity7 on the Whip motion for the Whip swing phase. The duration in this phase was average 0.4 second. 2. In the Whip swing phase, the fast angular velocity of hip joint on the moment of Whip swing, the fast upward velocity and the fast angular velocity of hip joint on the moment of upswing will positively affect the upswing phase. And the duration in this phase was average 0.4 seond. 3. In the Fullback phase, it showed the long horizontal and vertical displacement on the Fullback motion after achieved the large hip angle and fast upward velocity of CM on the moment of Up motion. These will be the important factor to increase the vertical height of body at the airborne phase, Also the duration of this phase was average 0.3 second. 4. In the airborne phase, the fast horizontal, vertical velocity of CM and fast hyper-extension of the hip and shoulder joint on the Pullback motion(the instant of release) appeared to increase the vertical height of CM and to take a long time at the Airborne phase. And the duration in this phase was average 0.7 second. In summary, it is important to appear the higher vertical height of CM and to take a long time at the Airborne phase after the Pullback motion(the instant of release). For example, the appropriateness angle of hip and shoulder joint on the handstand motion, fast downward velocity in the Down swing phase, fasthorizontal velocity of CM and fast angular velocity of hip joint in the Whipswing phase, fast hyper-extension motion of hip joint and fast upward velocity onthe Fullback phase appeared the higher height in the Pullback motion and longer duration.

세계 우수 여자선수들의 평균대운동 난이도 분석

강순용,권오석 한국스포츠리서치 2007 한국 스포츠 리서치 Vol.18 No.1

남자 도마 경기의 쿠에르보와 츠카하라 2회전 비틀기의 운동학적 비교분석

강순용 한국스포츠리서치 2006 한국 스포츠 리서치 Vol.17 No.4

철봉 드가체프 동작의 운동학적 분석

강순용,박종진,김창욱,최성진 한국운동역학회 2001 한국운동역학회지 Vol.11 No.1

The purpose of this study is to investigate the kinematical variables of the Tkatchev motion on the horizontal bar and the effects of kinematical variables of 1 phase on 2, 3, 4 phases and the effects of kinematical characteristics of every phase on motion the air and re-grasping. The subjects Tkatchev motion were filmed with S-VHS camera at the speed of 60 fields per second and each field is digitalized to 5 fields with from the sum of handstand motion to landing. The Kwon 3D 2.1 version program is employed to obtain 3-dimensional data. Based on the results of this study, the following conclusions are drawn. 1. In the Down swing phase, the maintenance of great vertical downward velocity is an important variable to achieve large angular velocity of body center and it is also proved that the fast downward motion gives advantage in spreading body joints to get great motion power in the next Whip swing motion. 2. In the Whip swing phase, fast upward velocity and fast angular velocity of hip joint will positively affect upswing movement in t he phase. To shorten the distance between horizontal bar and body center helps effective upward motion as well. These also work beneficially in the next phase. 3. In the Releases phase, fast vertical upward velocity until pull back after curving shoulder joint and hip joint at the whip swing and large change of position of body center are important variables to perform high and long flight duration. 4. In the Re-grasp phase, the maximum spread of shoulder joint and hip and the spread of body center to the opposite direction of it helps body center to stay in higher place and to perform large circular flight motion with extended length of time. This ultimately makes effective re-grasping motion happen and connects next motion smoothly.

철봉 드가체프 동작의 운동학적 분석

강순용 한국스포츠리서치 2006 한국 스포츠 리서치 Vol.17 No.4

세계 정상 여자선수들의 평균대운동 난이도 변화 분석

강순용,박정숙 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

In the competition in 1997, there were 72 performances of A, B and C in difficulty level, and the year 1999 competition had as many, In comparison, in 2001, although the number of the difficulty level decreased to 48, the players performed the movements of the difficulty level of performance link(CV) and D-E-Super E(DV). In case of CV, the year 1997 competition showed the total score 11 and the average 0.02, the year 1999 the total score 16 and the average 0.27, and the year 2001 the total score 22 and the average 0.37. In case of difficulty level D, the year 1997 showed 1B in number, the year 1999 22, and the year 2001 33, which showed a wide difference, The year 1997 saw two performances of difficulty level E and one of difficulty level SE, the year 1999 saw one performance of difficulty level E and one of SE, and the 2001 saw six performances of difficulty level E. This indicates that the players showed high techniques, since two players gave a performance of perfect score 10.00 and another two gave a performance of 9.90.

도마 운동 시 손 짚는 형태에 따른 공중 360도 비틀기의 운동학적 비교 분석

강순용 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

We can devide four situations on Cuervo motion and Tsukahara, 360° turn motion in Game of vault through analyzing image of third dimension. The four situations, that is, first, second situation, third situations (action in the air), forth situation (landing action) from the moment of touching on board to taking off vault. The purpose of this study is to analyze Cuervo motion and Tsukahara motion into four situations comparatively and beat out dynamically how each motion factor of four situations influence to third situation (rotary motion) and the characteristic of chock power which is assumed to be added on vault. The 9 persons who participated the final game of vault were chosen for this study as subjects. 1. Conclusion 1) We can fine out that the motion of Cuervo maintains long time from first situation (starting on board) to forth situation (loading), especially the motion of Tshkahara maintains a little long time on completion action on vault. This can be factor to obstruct the time of staying in the air as top point of body center on the third situation. It can be transferred to the action kicking the legs back strongly and rising exercise vertically, offers high position of body center on the third situation as shortening the time of completion on vault. It can lead circle and twist exercise to be comfort when taking descent by making to confirm circle and twist exercise largely on the top point of body center, lead stable loading action because of keeping the amount of each exercise. 2) The height of body center is similar in the first situation but rises quickly due to large motion of Cuervo on the second situation (starting on vault). The height of body center shows low position on starting on vault but high position on taking off vault, shows low position again on the third situation, shows high position on landing spot of forth situation in motion of Tsukahara. In motion of Tsukahara, the height of body center shows big change on horizontal movement but shows small on vertical movement. There is no big change of body center through total situations. This is useful for rotary motion and flying motion far away but is not useful for height of Gymnastics skill. In side of the movement distance of body center, the motion of Tsukahara appears for long time on starting on vault, movement distance is long on taking off vault. Because, the touching for long time on vault disturbs the action of fast taking off, so influences top point of body center in the third situation. 3) In the virtical speed of body center, the motion of Tsukahara appears quickly on starting on vault, the motion of Cuervo appears quickly on taking off vault and appears very quickly again on top point of third situation, and quickly on landing action of forth situation. So Cuervo is advantageous for top point of body center. In the horizontal speed of body center, the motion of Cuervo appears quickly on starting on vault, the motion of Tsukahara appears quickly on taking off vault, and the motion of Cuervo appears very quickly again on top point of third situation, and the motion of Tsukahara appears quickly again on landing action of forth situation. So Cuervo is advantageous for top point of body center and Tsukahara is advantageous for landing action. We can improve the skill of Gymnastics if we compose these two motions. 4) In the body angular momentum(X axis), generally the motion of Tsukahara appears strongly. The motion starts with side is useful for circle exercise from staying in the air to landing action. In the body angular momentum(Y axis and Z axis), the motion of Tsukahara appears strongly on taking off vault in the second situation, on the top point of body center in the third situation and on landing action in the forth situation. In the body angular momentum, the motion of Tsukahara which acts with side is useful in the whole situation.

철봉운동 드가체프 동작의 운동학적 분석

박정숙,강순용 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study is to investigate the kinematical variables of the Tkatchev of the Tkatchev motion on the horizontal bar and the effects of kinematical variables of l phase on 2. 3. 4 phases and the effects of kinematical characteristics of every phase on motionin the air and re-grasping. The subjects" Tkatchev motion were filmed with S-VHS camera at the speed of 8 fields per second and each field is digitalized to 5 fields from the start of handstand motion to landing. The Kwon 3D 2.1 version program is employed to obtain 3-dimensional data. Based on the results of this study, the Following conclusions are drawn: 1. In the Down swing phase. the maintenance of great vertical downward velocity is an important variable to achieve large angular velocity of body center and is id also proved that the fast downward motion gives advantage in spreading body joints to get great motion power in the next Whip swing motion. 2. In the Whip swing phase. fast upward velocity and fast angular velocity of hip joint will positively affect upswing movement in the phase. To shorten the distance between horizontal bar and body center helps effective upward motion as well. These also work beneficially in the next phase. 3. In the Releases phase. fast vertical upward velocity until pull back after curving shoulder joint and hip joint at the whip swing and large change of position of body center are important variables to perform high and long flight duration. 4. In the Re-grasp phase. the maximum spread of shoulder joint and hip joint and the spread of body center to the opposite direction of it helps body center to stay in higher place and to perform large circular flight motion with extended length of time. This ultimately makes effective re-grasping motion happen and connects next motion smoothly. In summary, it is desirable to move by using gravity power and maximize inertia by keeping body center away from horizontal bar and then achieving higher position in the phase four movement by moving upward fast which allows longer time of motion with power achieved fro, the inertia then just to move reverse by using shoulder joint and hip joint. To achieve this desirable movement, the velocity of body center needs to fast in the swing phase, but, on the contrary, in the Releases phase, nearly stalled movement make it eaes to circulate revers in the air. Also, to get by dramatic and desirable motion. body center must be in higher position by doing large circular excercise including not only vertical movement but also horizontal movement. 2. Suggstion This study is about the investigation of kinematical variables in Tkatchev motion by utilizing three-dimensional cinematographic method. The result of this study has a limitation in that it is drawn from an experimental situation and only with 10 male subjects. It is expected that another study deals with gymnastics motions more then more enlarged subject groups resulting in the contribution to the improvement of game techniques and training.

사이클링 선수의 슬관절각에 따른 하지동작의 운동학적 분석

류창엽,최성진,박종진,강순용 한국운동역학회 2001 한국운동역학회지 Vol.11 No.3

This study set out to evaluate the appropriateness of the height of a cycle saddle which was usually set based on a cyclist's experience and simple judgment. For this purpose, there was aroused a need to study what a cyclist's leg movements were according to the knee joint angle, that is, to study how a cyclist's leg joint angles and angular velocity would change at each pedaling. Seven male college cyclists were selected, and their pedaling movements were divided into four phases. The images were taped at 60fields/sec, using two video cameras. The KWON 3D 2.1 program was adopted to calculate and synchronize the 3D coordinates values which were calculated with DLT(Direct Liner Transformation), in order to analyze kinematical factors. The results were as follows: 1) There was found no difference between foot joint angles according to changes of knee joint angles in each phase. But it became clear that Phase 1 and 2 where the foot angle got bigger were the area where the foot joint was expanded and that Phase 3 and 4 where the foot angle got smaller were the area where the foot joint was bent. Accordingly, the area which gives a great indirect impact to the changes of foot joint angles is considered to be the first part of Phase 3 at which point the cycle of pedaling starts. 2) In terms of the difference of foot joint angular velocity according to knee joint angles, there was found a relatively stable deceleration in the decelerating area(Phase 3 and 4) while you could detect faster changes in the acceleration area(Phase 1 and 2) than in the decelerating area. 3) The changes in the angle difference of knee joints according to each knee joint angle showed almost similar patterns for every knee joint. But the patterns had the graph model of the opposite shape to that of the angle difference of foot joints. 4) The research went on to see what kind of difference the knee joint angle made as knee joint angular velocity changed. The changes were unlike the foot joint angular velocity and thus showed relatively slow deceleration and acceleration. And the higher the saddle was set, the bigger the difference of the angular velocity was. 5) The difference of hip joint angles according to knee joint angles made a graph pattern which showed no big correlation with the height of a saddle. 6) In considering how hip joint angular velocity would change according to knee joint angles, the higher a saddle was set, the bigger angular velocity was found in Phase 1 and 2, the area of joint expansion and the smaller angular velocity in Phase 3 and 4, the area of joint bending. Comparisons and analysis were made based on the results above mentioned. The conclusion was that the lower a saddle which was one of the three experiment conditions was set, the smoother the pedaling turned and the bigger the angular velocity was resulted. In other words, when you take a long road cycling with your saddle fixed at a little lower height than the average one, you will consume less physical strength and expect better performance.