2026-03-09T17:36:11Z https://kitami-it.repo.nii.ac.jp/oai

oai:kitami-it.repo.nii.ac.jp:00007507 2026-02-17T00:44:48Z 1:87

Skill Analysis of the Wrist Release in the Golf Swings Utilizing Shaft Elasticity SUZUKI, Soichiro HOSHINO, Yohei KOBAYASHI, Yukinori open access Skill Analysis Golf Swing Late Hitting Shaft Vibration Zero-Crossing Point This study analyzes the skill component of the wrist release in the golf swing by employing a three-dimensional dynamic model considering vibration of the club shaft. It is observed that professional and expert golfers relax their wrists in the swing motion as a "natural" or "late" release. Thus, the relationship between the timing of the wrist release and the shaft vibration is examined in this study. First, it is demonstrated that "natural release" at the zero-crossing point of the bending vibration of the shaft efficiently increases the head speed at impact. In the next step, the "late hitting" condition is imposed upon the model. It is demonstrated that "late hitting" could further improve the efficiency of the swing motion. Finally, the skill component in the wrist release for the long drive is experimentally verified by measuring the movement of the wrist and the dynamic deformation of the shaft during the downswing. application/pdf The Japan Society of Mechanical Engineers 2009 eng journal article VoR https://kitami-it.repo.nii.ac.jp/records/7507 http://doi.org/10.1299/jsdd.3.47 Journal of System Design and Dynamics 3 1 47 58 https://kitami-it.repo.nii.ac.jp/record/7507/files/kikai_suzukis_p_03.pdf application/pdf 616.2 kB 2016-11-22