Department of Physical Education and Sport Sciences, Islamic Azad University of Karaj Branch, Karaj, Iran.
Department of Sports Biomechanics, Central Tehran branch, Islamic Azad University, Tehran, Iran.
BMC Musculoskelet Disord. 2023 Jul 29;24(1):619. doi: 10.1186/s12891-023-06757-4.
This study examined the relationships between impulse and kinetic variables during jumping and landing in elite young male volleyball players.
Eighteen players were recruited and asked to jump on a force plate, which allowed for the direct extraction of jump and landing kinetic data. The data was then analysed using stepwise regression to explore the relationship between landing impulse and various kinetic variables.
Our findings revealed a significant positive relationship between the peak rate of force development concentric (PRFD ) and impulse at landing (β = 0.537, p = 0.02). In a secondary analysis, we found that PRFD (β = 0.497, p = 0.01) and time to peak power concentric (TPPC) (β = 0.424, p = 0.04) were also positively correlated with landing impulse. Importantly, PRFD and TPPC were the variables that had the most muscular predictive power for impulse at landing.
These findings offer crucial insights into the biomechanics of jumping and landing in elite young male volleyball players, informing the development of more effective training programs. Our study identifies PRFD and TPPC as critical factors for improving landing impulse, emphasizing the need to consider multiple kinetic variables when designing training programs for explosive skills. These insights can help optimize performance and reduce the risk of injury in elite young male volleyball players.
本研究旨在探讨优秀年轻男性排球运动员在跳跃和落地过程中冲动和动力变量之间的关系。
招募了 18 名运动员，要求他们在力量板上跳跃，以便直接提取跳跃和落地动力学数据。然后使用逐步回归分析来分析数据，以探索落地冲动与各种动力变量之间的关系。
我们的研究结果表明，峰值力发展速率向心（PRFD）与落地冲动之间存在显著的正相关关系（β=0.537，p=0.02）。在二次分析中，我们发现 PRFD（β=0.497，p=0.01）和向心最大功率时间（TPPC）（β=0.424，p=0.04）也与落地冲动呈正相关。重要的是，PRFD 和 TPPC 是对落地冲动具有最强肌肉预测能力的变量。
这些发现为优秀年轻男性排球运动员跳跃和落地的生物力学提供了重要的见解，为更有效的训练计划的制定提供了信息。我们的研究确定 PRFD 和 TPPC 是提高落地冲动的关键因素，强调在设计爆发力技能训练计划时需要考虑多个动力学变量。这些见解有助于优化表现并降低优秀年轻男性排球运动员受伤的风险。
