Lower limb muscle activation and biomechanics during single-leg hopping in different directions.

ABSTRACT:

Background

Single-leg forward and vertical hopping are commonly employed to evaluate knee neuromuscular function following anterior cruciate ligament reconstruction. However, similar hopping performance between limbs does not ensure full knee recovery. Single-leg backward hopping has been suggested to impose greater knee kinetics, but its effects on lower limb muscle activation and kinematics remain unclear.

Purpose

To quantify the effect of hopping directions on lower limb muscle activation and biomechanics during jumping, focusing on the knee joint.

Methods

Forty-eight injury-free participants performed single-leg forward/vertical/backward hopping with motion, force, and surface electromyography data collected. Peak and mean muscle activation of quadriceps, hamstrin

SUBMITTER: Gu Y 

PROVIDER: S-EPMC12827753 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature