Abstract
The purpose of this study was to identify factors determining agility in female junior high school soccer players from the perspectives of sprinting, jumping ability, and change of direction ability. Twenty-seven female junior high school soccer players participated in this study. Measurements included reactive shuttle test time, proagility test time, linear sprint time, countermovement jump height, rebound jump reactive strength index (RSI), and standing long jump distance. Reaction time at the start of the reactive shuttle test was also measured, and the change of direction (COD) deficit was calculated as the difference between the pro-agility test time and the linear sprint time. A multiple regression analysis was conducted with the reactive shuttle test time as the dependent variable and reaction time at the start of the reactive shuttle test, 10-yard sprint time, COD deficit, countermovement jump height, rebound jump-RSI and standing long jump distance as independent variables. The results of the multiple regression analysis revealed that10-yard sprint time, reaction time and COD deficit were selected as explanatory variables for the reactive shuttle test time, with an adjusted R² of 0.90. These findings suggest that agility in junior high school female soccer players is largely determined by change of direction ability and physical capacities.
