Human Performance & Biomechanics Laboratory, Texas Tech University, Lubbock, TX, USA.
Department of Exercise Science and Pre-Health Professions, Creighton University, Omaha, NE, USA.
Sports Biomech. 2024 Aug;23(8):1009-1027. doi: 10.1080/14763141.2021.1908412. Epub 2021 May 5.
Dependent variables commonly studied during countermovement vertical jump (CMVJ) tests largely stem from male-only studies despite females'distinct energy storage and reutilisation strategies. This could limit progress among females seeking increased CMVJ performance through targeted changes in certain variables. We explored relationships between CMVJ performance metrics (jump height, modified reactive strength index, jump power, and takeoff momentum) and (a) temporal and force application variables and (b) inter-limb force and yank (i.e., rate of force development) asymmetry in 31 recreationally active females. Participants performed eight CMVJs while ground reaction force (GRF) data were obtained. Pearson product-moment correlation coefficients assessed the strength and direction of the associations. Twenty-six significant relationships (r ≥ ±0.357; p < 0.05) were detected across the CMVJ performance variables. The significantly correlated variables were generally isolated to only one of the four performance metrics. Only the percentage of concentric phase inter-limb force asymmetry was significantly associated with CMVJ performance, specifically jump power and takeoff momentum. Coaches and physical performance professionals should be aware of popular strategy variables' association or lack of association with commonly studied performance metrics when seeking to understand or improve specific CMVJ jumping abilities in females.
尽管女性有独特的储能和再利用策略，但在反跳垂直跳跃（CMVJ）测试中，常用的因变量主要源自仅针对男性的研究。这可能会限制女性通过针对某些变量的特定改变来提高 CMVJ 表现的进展。我们探索了 CMVJ 表现指标（跳跃高度、改良反应强度指数、跳跃力量和起飞动量）与（a）时间和力应用变量，以及（b）肢体间力量和拉力（即力发展率）不对称性之间的关系，研究对象是 31 名休闲活跃的女性。参与者进行了 8 次 CMVJ，同时获得了地面反作用力（GRF）数据。皮尔逊积矩相关系数评估了关联的强度和方向。在 CMVJ 表现变量中，共检测到 26 个显著的相关关系（r≥±0.357；p<0.05）。这些显著相关的变量通常仅与四个表现指标中的一个有关。只有同心相肢体间力量不对称的百分比与 CMVJ 表现显著相关，特别是跳跃力量和起飞动量。教练和体能表现专业人员在试图理解或提高女性特定的 CMVJ 跳跃能力时，应该意识到流行的策略变量与常用的表现指标之间的关联或缺乏关联。
