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3-Dimensional Performance Optimization Model of Snatch Weightlifting
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 Title & Authors
3-Dimensional Performance Optimization Model of Snatch Weightlifting
Moon, Young-Jin; Darren, Stefanyshyn;
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 Abstract
Object : The goals of this research were to make Performance Enhanced Model(PE) taken the largest performance index (PI) through artificial variation of principle components calculated by principle component analysis for trial data, and to verify the effect through comparing kinematic factors between trial data (Raw) and PE. Method : Ten subjects (5 men, 5 women) were recruited and 80% of their maximal record was considered. The PI is a regression equation. In order to develop PE, we extracted Principle components from trial position data (by Principle Components Analysis (PCA)). Before PCA, we made 17 position data to 3 row matrix according to components. We calculated 3 eigen value (principle components) through PCA. And except Y (medial-lateral direction) component (because motion of Y component is small), principle components of X (anterior-posterior direction) and Z (vertical direction) components were changed as following. Changed principle components
 Keywords
Weightlifting;Optimization;Performance Enhanced Model;Performance Index;Principle Component Analysis;
 Language
English
 Cited by
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