Comparison of Coefficients of Variation in Performance Tests Performed by Healthy Males

Abstract

[Purpose] This study aimed to compare the coefficients of variation of joint angles and joint moments in the Single Drop Jump Test (SDJ), Single Hop Test (SHT), and Triple Hop Test (THT). [Participants and Methods] Twelve healthy male subjects who were members of high school or university athletic teams were included in the study. Their joint angles and joint moments of the trunk and lower limbs were measured, and the sagittal and coronal directions were calculated. The analysis was performed at 40 ms after landing. [Results] The coefficients of variation for the trunk, hip and knee joint angles, and ankle joint moment were significantly larger in SHT and THT than those in SDJ, while the coefficients of variation for the ankle joint angle and knee joint moment were significantly larger in SDJ. [Conclusion] It was clear that the coefficients of variation differed depending on the performance test.