• 제목/요약/키워드: INVERSE DYNAMICS FUNCTION(MOTION-DEPENDENT INTERACTION)

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Inverse Dynamics 함수를 이용한 골프스윙 3분절 시스템의 적용 (An Application of Triple Segmental System in Golf Swing through an Inverse Dynamics Function)

  • 임정;문건필
    • 한국운동역학회지
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    • 제15권2호
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    • pp.57-67
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    • 2005
  • The purpose of this study was to analyze the kinetic factors of the golf driver swing using the Inverse Dynamics function. For this purpose, joint force were calculated. In order to test the possibility of Inverse Dynamics function(motion-dependent interaction), a triple segmental system was set for wrist, left shoulder and lumbar and joint force working on the anatomical joint region was estimated. For this study, 7 professional golfers were sampled, and then, their driver swings were recorded with two high-speed digital video cameras (180 frames/sec.) to be synthesized into 3-dimensional images and coordinated. Then, Eular's equation was used to produce some kinematic data, which were used to calculate joint force and torque with Newton's function. All data were calculated using LabVIEW 6.1 graphic program. The results of this study can be summarized as follows; It was found that the joint force was generated on wrist, shoulder and lumbar joints in the direction of the target, and that the joint force was stronger in the direction of target immediately before impact. The joint force was generated towards the target to activate the nodes, and then, it was generated in the reverse direction to increase the speed during impact.