Association between lower extremity muscle strength and acute ankle injury in youth team-sports athletes.

To investigate lower extremity muscle strength as risk factor for an acute ankle injury in youth athletes. Cohort study. Basketball and floorball clubs. 188 youth (≤21) male and 174 female athletes. 1RM leg press, maximal concentric isokinetic quadriceps and hamstrings as well as maximal isometric hip abductor strength were measured and athletes were followed for an acute ankle injury up to three years. Cox regression models were used in statistical analyses. In males, greater 1RM leg press and maximal quadriceps strength increased the risk of any type of acute ankle injury (Hazard ratio [HR] for 1 SD increase, 1.63 [95% CI, 1.12-2.39] and 1.43 [95% CI, 1.01-2.01], respectively). In females, greater 1RM leg press and difference between legs in hip abduction strength increased the risk of acute non-contact ankle injury (HR for 1 SD increase, 1.44 [95% CI, 1.03-2.02] and 1.44 [95% CI, 1.03-2.00], respectively). However, ROC curve analyses showed AUC:s of 0.57-0.64 indicating "fail" to "poor" combined sensitivity and specifity of these tests. Greater strength in both sexes along with asymmetry in hip abductor strength in females increased the risk of acute ankle injury.

Informations de copyright

Copyright © 2021 Elsevier Ltd. All rights reserved.

Déclaration de conflit d'intérêts

Declaration of competing interest The authors declare that the results of the study are presented clearly, honestly, and without fabrication, calcification, or inappropriate data manipulation, and statement that results of the present study do not constitute endorsement by ACSM. The authors declare that there is no conflict of interest regarding the publication of this paper.