Abstract
The present study examined the relationship between the muscle strength of the legs and performance in two types of vertical jump by gender: jumps performed using the recoil action (FVJ) and limited recoil action (LVJ). FVJ and LVJ performances and the strength of leg muscles were measured, and their relationships in male and female groups were examined using Pearsonʼs correlation coefficient. In the male group, no significant correlation was noted between FMJ performance and muscle strength of the legs, although LVJ performance was significantly correlated with the plantar flexor strength. Among females, FVJ and LVJ performances were significantly correlated with muscle strength related to extension of the knee joints, but not the plantar flexor strength. The results suggested that, among males, the recoil action and strength of the plantar flexor were efficiently reflected in jump performance, whereas females may have failed to efficiently utilize the recoil action when jumping and relied solely on muscle strength related to extension of the knee joints.
