The purpose of this study was to investigate the effects on college basketball athletes' leg strength and muscle damage after six weeks' plyometric training in water and on land. Methods: take seventeen male basketball players represent Chinese Culture University in UBA (University Basketball Association) 2008 as subjects. Then separate into two groups randomly. Nine for six weeks' plyometric training in water, and eight on land. The training frequency is twice a week, and gives the tests before and after six weeks. Analyses of variance (two-way ANOVA) with measures (2×2) are used to examine changes in peak torque, power and muscle damage. Taking α=.05 as a significance level. The results of this study discovers that after six weeks' plyometric training both in water and on land can make significant increase in peak torque production and peak power (60°•S^(-1) & 180°•S^(-1) knee extension and flexion) (p＜.05), and there's no any differences in two groups. Besides, in muscle damage, the on land training group shows more serious damage than the in water training group. As a conclusion, aquatics provided the same performance enhancement benefits as land plyometrics with significantly less muscle damage.
