GROUND REACTION FORCE AND LOADING RATE DURING SEPAKTAKRAW SPIKE LANDINGS

Abstract

Sepaktakraw spike landing is a sport-specific landing that may prone to injury due to high impact force. Because of there are limited research in sepaktakraw particularly when landing. To understand ground reaction forces can provide insights of sepaktakraw spike landings. Therefore, the purpose of this study was to investigate ground reaction forces (PVGRF), time to PVGRF (TTPF) and loading rate (LR) among different sepaktakraw spike landings. Ten collegiate male sepaktakraw athletes ( 19.6+2.8 years,  61.4+7.2 Kg and  1.74+0.04 m) performed three sepaktakraw spike landings (roll spike (RS), half roll spike (HS) and sunback spike (SS)) onto a force plate. Five successful trials of each spike landing were averaged. One-way repeated measurement ANOVA revealed significant differences of PVGRF, TTPF and LR among three spike landings (p<0.05).  Post-hoc analysis found significant differences of all parameters between RS vs. HS and RS vs. SS, but no significant difference between HS and SS. RS landing demonstrated the greatest PVGRF (3.97+0.76BW) and LR (158.8+64.8 BW/s)and the lowest TTPF (30+10 ms). In conclusion, roll spike may be at high risk of injury as compared to half-roll spike and sunback spike landings due to the high loading rate.

(Journal of Sports Science and Technology 2015;15(1): 1-8 )