Determining the best combination of ground reaction force parameters for maximising power during the power snatch

Sangwoo Lee, Kyle D. DeRosia and Landon M. Lamie

International Journal of Performance Analysis in Sport, 2019, vol. 19, issue 3, 313-322

Abstract: The purpose of this study was to determine the best combination of ground reaction force (GRF) parameters for maximising power during the power snatch. Ten skilled weightlifters (five males and five females) completed a total of five power snatch trials with 60% of one repetition maximum. Vertical GRF (VGRF), horizontal GRF (HGRF), rate of vertical force development (VFD), rate of horizontal force development (HFD) and horizontal centre-of-pressure (HCOP) were extracted through a three-dimensional motion analyses and used as the GRF parameters. Multiple-regression (stepwise) analyses were conducted to evaluate the prediction of power with the GRF parameters being independent variables and determine the above-mentioned best combination. VGRF, VFD and HCOP were identified as significant predictors of power during the power snatch with up to 72% of the variance in power explained (VGRF and VFD: p

Date: 2019
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DOI: 10.1080/24748668.2019.1602440

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