Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Change of Impact by the Early Extension in during a Golf Driver Swing

골프 드라이버 스윙 시 Early Extension에 따른 임팩트 변화

  • So, Jae-Moo (Department of Physical Education, College of Education, Konkuk University) ;
  • Kim, Yong-Seok (Department of Physical Education, College of Education, Konkuk University) ;
  • Kim, Jae-Jung (Department of Physical Education, College of Education, Konkuk University) ;
  • Yoo, Kwang-Soo (Department of Physical Education, Graduate School of Konkuk University)
  • 소재무 (건국대학교 사범대학 체육교육과) ;
  • 김용석 (건국대학교 사범대학 체육교육과) ;
  • 김재정 (건국대학교 사범대학 체육교육과) ;
  • 유광수 (건국대학교 대학원 체육학과)
  • Published : 2010.03.31
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Abstract

The purpose of this study is to validate that change of impact by the Early Extension in during a golf driver swing. 13 golf players who were diagnosed with symptoms of Early Extension participated in a proactive corrective training programs that took place 3 times a week for a 4 month period. Data was collected by recording 5 pre and 5 post training driver swings and analyzing the data to calculate the change in velocity and its effect in the shot used the TRACK MAN. After the training, the changes of early extension were -0.21 cm in backswing section E2(take away), -0.64 cm in E3(halfway backswing), and -0.94 cm in E4(backswing top). The downswing section changes were -1.34 cm in event E5(halfway downswing), -1.74 cm in E6(impact). Impact force increased and thus club speed increased by 6.32 km/h, ball speed increased by 10.94 km/h, max height decreased by -6.22 m, carry increased by 10.85 m, carry side(left deviation) decreased by 4.84 m, flight time by increased by 0.4 sec, and total length increased by 17.96 m while landing angle decreased by -7.74 deg.

Keywords

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