| The planarity of the stickface motion in the field hockey hit. | |
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MedLine Citation:
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PMID: 22221186 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract The field hockey hit is an important but poorly understood stroke. In this study, we investigated the planarity of the stickface motion during the downswing to better characterize the kinematics and to assess the suitability of planar pendulum models for simulating the hit. Thirteen experienced female field hockey players were filmed executing hits with a single approach step, and the kinematics of the centre of the stickface were measured. A method was developed for identifying how far back from impact the stickface motion was planar. Orthogonal regression was used to fit least-squares planes to the stickface path during sections of the downswing of varying length, with each section ending at impact. A section was considered planar if the root mean square residual between the stickface path and the fitted plane was less than 0.25% of the distance travelled by the stickface during that period. On average, the stickface motion was planar for the last 83 ± 12% of its downswing path, with the length of the planar section ranging from 1.85 m to 2.70 m. The suitability of a planar model for the stickface motion was supported, but further investigation of the stick and arm kinematics is warranted. |
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Authors:
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Alexander P Willmott; Jesús Dapena |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-5 |
Journal Detail:
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Title: Journal of sports sciences Volume: - ISSN: 1466-447X ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8405364 Medline TA: J Sports Sci Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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a Department of Kinesiology , Indiana University , Bloomington , Indiana , USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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