5JT performance was expressed in absolute terms (m), and relative to leg length (5JT LL) and body mass (5JT BM). Forty volleyball players (boys, mean age: 12.4 ± 0.8 years) were tested for 5JT, CMJ, and SJ tests. This study aimed to test the relationship between 5JT performance and two specific laboratory tests for explosive power (i.e., countermovement jump and squat jump ). It appears that no previous study has investigated the 5JT performance components in volleyball players. The 5-jump test (5JT) was suggested to assess lower limb explosive power of athletes competing in some disciplines (e.g., soccer, judo, running). Volleyball involves movements with and/or without horizontal approaches (i.e., spike jumps, jump setting, blocking).
