Relationships among countermovement vertical jump performance metrics, strategy variables, and inter-limb asymmetry in females

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 metrics (jump height, modified reactive strength index, power, takeoff momentum) (a) temporal force application (b) inter-limb yank (i.e., rate of development) asymmetry 31 recreationally active females. Participants performed eight CMVJs while ground reaction (GRF) data were obtained. Pearson product-moment correlation coefficients assessed the direction associations. Twenty-six significant (r ≥ ±0.357; p < 0.05) detected across The significantly correlated generally isolated to only one four metrics. Only percentage concentric phase was associated with performance, specifically power momentum. Coaches physical professionals should be aware popular strategy variables’ association or lack when understand improve specific jumping abilities