| Kinetics of the upper limb during table tennis topspin forehands in advanced and intermediate players. | |
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MedLine Citation:
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PMID: 22303787 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The purpose of this study was to determine the significance of mechanical energy generation and transfer in the upper limb in generating the racket speed during table tennis topspin forehands. Nine advanced and eight intermediate table tennis players performed the forehand stroke at maximum effort against light and heavy backspin balls. Five high-speed video cameras operating at 200 fps were used to record the motions of the upper body of the players. The joint forces and torques of the racket arm were determined with inverse dynamics, and the amount of mechanical energy generated and transferred in the arm was determined. The shoulder internal rotation torque exerted by advanced players was significantly larger than that exerted by the intermediate players. Owing to a larger shoulder internal rotation torque, the advanced players transferred mechanical energy from the trunk of the body to the upper arm at a higher rate than the intermediate players could. Regression of the racket speed at ball impact on the energy transfer to the upper arm suggests that increase in the energy transfer may be an important factor for enabling intermediate players to generate a higher racket speed at impact in topspin forehands. |
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Authors:
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Yoichi Iino; Takeji Kojima |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Sports biomechanics / International Society of Biomechanics in Sports Volume: 10 ISSN: 1476-3141 ISO Abbreviation: Sports Biomech Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2012-02-06 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101151352 Medline TA: Sports Biomech Country: Scotland |
Other Details:
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Languages: eng Pagination: 361-77 Citation Subset: IM |
Affiliation:
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Laboratory of Sports Sciences, Department of Life Sciences, The University of Tokyo, Tokyo, Japan. iino@idaten.c.u-tokyo.ac.jp |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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