Pengaruh Double Leg Box Bound terhadap Tinggi Lompatan Pemain Bola Voli

Abstract

This literature review aims to examine the influence of double leg box bound training on the vertical jump height of volleyball players by synthesizing evidence from fifteen reputable peer-reviewed journals. A structured literature search was conducted through international academic databases to identify studies focusing on plyometric training involving box jumps or double-leg bounding and its effects on lower-limb explosive performance. The review applies an inclusion framework emphasizing volleyball athletes, experimental designs, and interventions lasting at least four weeks. The findings indicate that double leg box bound training consistently enhances vertical jump performance, with reported improvements ranging from 2 to 15 cm depending on training duration, intensity, and progression. Most studies attribute these improvements to the optimization of the stretch–shortening cycle, which increases neuromuscular activation and force production during take-off. Moreover, cross-study comparisons show that double leg box bound training is effective, practical, and adaptable for volleyball players, although variations in program design contribute to differences in outcome magnitude. Overall, the reviewed literature supports the use of double leg box bound as a targeted plyometric method to improve vertical jump height, while highlighting the need for greater protocol standardization in future research.