THE INFLUENCE OF LOWER LIMB MUSCLE PRE-ACTIVATION ON KNEE JOINT DYNAMIC CONTROL DURING A SINGLE-LEG LANDING TASK IN BADMINTON

Authors

Pingping Zhu, School of Physical Education, Southwest Medical UniversityFollow
Yanjia Xu Wang, School of Physical Education, Southwest Medical University
Yanjia Xu, Department of Physical Education, Jeonbuk National University
Zhe Hu, School of Physical Education, Southwest Medical University

Category

Motor Control

Document Type

Paper

Abstract

Purpose: Lower limb neuromuscular strategies impact knee biomechanics, crucial for ACL injury prevention. Yet, the link between them remains unclear. In our randomized trial with 34 badminton players, we examined lower limb muscle preactivity during single-leg landings. Findings revealed that increased rectus femoris preactivation correlated with heightened knee valgus angle. Moreover, higher lateral hamstring/quadriceps co-contraction ratios predicted increased knee extension moments. These outcomes suggest potential benefits in ACL injury prevention through reduced quadriceps pre-activation and optimal lateral hamstring/quadriceps co-contraction ratios. Understanding these relationships aids in developing targeted prevention strategies for anterior cruciate knee injuries.

Recommended Citation

Zhu, Pingping; Wang, Yanjia Xu; Xu, Yanjia; and Hu, Zhe (2024) "THE INFLUENCE OF LOWER LIMB MUSCLE PRE-ACTIVATION ON KNEE JOINT DYNAMIC CONTROL DURING A SINGLE-LEG LANDING TASK IN BADMINTON," ISBS Proceedings Archive: Vol. 42: Iss. 1, Article 57.
Available at: https://commons.nmu.edu/isbs/vol42/iss1/57