Jumping ability is one of the most important determinants of performance in volleyball. In the volleyball match game, vertical jumps (VJ) are performed frequently, setting and attacking players performing at least one jumping movement during a 12 s rally. Moreover, frontcourt players perform approximately four block jumps and three spike jumps, each of the players averaging nearly 22 jump-landings per game [9]. It was determined that players of better performing teams have higher VJ values [9]. The VJ height (spike and vertical) also influences the performance of beach volleyball players, and consequently the performance of their teams [10]. Beach volleyball (BVB), similarly to volleyball, is performed intermittently at moderate-to-high intensity with brief bouts of high intensity exercise interspersed by long low-intensity periods. Nevertheless, there are some biomechanical differences in movements performed on sand and a solid surface. It was shown that jumping on sand surfaces was characterized by significantly smaller jumping heights during squat jumps, countermovement jumps, volleyball spikes, and block jumps, compared with jumps on rigid surfaces [11]. Jumping height is significantly smaller on a sand surface than a rigid one due to compliance and instability of the sand, and this results in a reduction in maximum vertical forces, smaller maximum powers, vertical impulses and take-off velocity [12]. As a result of the compliance of the sand surface, during the spike jump the BVB players slow down their movements, especially during the phase of transition from knee flexion to extension and during the extension phase [13]. During the sprinting performance on a sand surface, successful sprinters are characterized by a greater angle of trajectory at start take-off than in non-elite sprinters. As Lockie and Vickery suggested, this could be facilitated by a longer start time that allows for more force generation, and a greater degree of hip flexion of the swing leg and trunk lean at start take-off [14].