Lower-limb asymmetries in jump athletes during single-leg drop jump.

ABSTRACT:

Background

This study investigated lower-limb biomechanical asymmetries during single-leg drop jumps (SLDJ) in elite male long and high jumpers.

Methods

Twenty athletes performed SLDJ from 30-cm and 40-cm heights using dominant and non-dominant legs. Three-dimensional kinematic and kinetic data were collected using a motion capture system and force platforms. Measured variables included joint angles, moments, peak vertical ground reaction force (Peak vGRF), loading rate, reactive strength index (RSI), and absolute symmetry index (ASI%). Data were analyzed using a two-way repeated-measures ANOVA.

Results

The dominant leg exhibited significantly greater ankle range of motion (p < 0.05), hip joint moment (p < 0.05), ankle joint moment (p < 0.001), an

SUBMITTER: Li Y 

PROVIDER: S-EPMC12658979 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature