Vertical jumps on sand and rigid surface

What is it about?

Arm swing vertical jumps are used at beach volley and volleyball. Their dynamic and kinematic differences are presented in this research

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Why is it important?

Countermovement jumping on sand is a convenient to adopt training modality for beach-volleyball players, since almost similar patterns, compared to countermovement jumping on a rigid surface, are utilized. Based on these findings, countermovement jumps on sand aiming for maximal height are suggested as an alternative training modality for acquiring explosiveness in jumping drills. Finally, sand comprises a training surface for a faster extension of the ankle joint over a larger range of motion during the upward phase of the countermovement jump, because it causes the hip to extend in a larger magnitude in order to maintain the vertical movement of the body during the push-off. Thus, conditioning training programs on sand surfaces should include a substantial volume of strengthening the muscular system around the hip joint and the lower back.