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Category

Athletics

Document Type

Paper

Abstract

The purpose of the study was to determine the association between trunk energy flow (proximal energy inflow (IF) and distal energy outflow (OF) on the pitching arm side) and peak shoulder distraction force during the acceleration phase of the windmill softball pitch. Fifty-five collegiate softball pitchers participated. Regression analysis revealed proximal energy IF was not associated with peak shoulder distraction force during the acceleration phase of the pitch [F (1,53) = .026; p = .87), r = .02]. Distal trunk OF was also not associated with peak shoulder distraction force during the acceleration phase of the pitch [F (1,53) = .920; p = .342), r = .13]. Thus, it was concluded proximal trunk energy IF and distal trunk energy OF on the pitching arm side are not associated with peak shoulder distraction force during the acceleration phase of the pitch.

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