The acute effect of functional fatigue on knee and trunk kinematics in female soccer players with and without dynamic knee valgus during single-leg landing

Articles in Press

Document Type : Research Paper

Authors

1 Master's student of Tehran University

2 Department Sport Injuries and Biomechanics, Faculty of Sport Sciences and Health, University of Tehran, Tehran, Iran

3 University of Tehran, Faculty of Physical Education and Sport Sciences, Department of Health and Sport Medicine, Tehran, Iran

Abstract

Dynamic knee valgus (DKV) is due to the weakness of the hep abductor and the vastus medialis muscles, which increases possibility of anterior cruciate ligament (ACL) injury.
The aim of the present study was the effect of acute soccer functional fatigue on knee and trunk kinematic factors in female soccer players with and without DKV during single leg landing.
The present study is quasi-experimental research conducted on 28 female soccer players who were selected using purposeful and convenience sampling. They were classified into two groups. The kinematic changes of the participants' trunk and knees were recorded through high-speed video cameras in two sagittal and frontal planes in single leg landing . The data were analyzed in SPSS-26 using a mixed ANOVA statistical test.
The results revealed a significant interaction effect between fatigue conditions and groups on knee and trunk joint angles in frontal plane. The results showed that fatigue significantly reduced knee flexion and increased knee valgus and trunk The results indicated the acute effect of fatigue on knee and trunk kinematics of female soccer players with DKV. Therefore, by increasing the amount of knee and trunk flexion , the possibility of ACL injury in fatigue can be reduced.

Keywords

Sport Sciences and Health Research

Articles in Press, Accepted Manuscript
Available Online from 19 August 2024

Files

Share

How to cite

Statistics