Post-game recovery of isometric hamstring strength in a high-risk hamstring strain injury group throughout an Australian Football League season

Thomas Sutherland, Jarryd Heasman, Brent Rogalski, Jack Fahey-Gilmour, Peter Peeling

Research output: Contribution to journalArticlepeer-review

Abstract

This study sought to investigate post-game hamstring strength recovery of 26 Australian Football League (AFL) players with a previous hamstring strain injury (HSI) across an AFL season. Maximal unilateral isometric knee flexion strength was assessed using an externally fixed dynamometer, and inter-session reliability was measured during the pre-season period. Linear mixed effects models investigated the influence of numerous variables on post-game hamstring strength decrement (relative change between initial weekly test and individual baseline) and individual within-week strength change following gameplay. The test demonstrated good inter-tester reliability (ICC = 0.81-0.88; CV = 6.73-7.33), and an acceptable level of error (MAE = 5.77-7.14%). Player as a random effect strongly influenced post-game strength decrement and within-week strength change (marginal R-2 = 0.185-0.407; conditional R-2 = 0.455-0.654). Within-week hamstring strength change was strongly determined by post-game strength decrement alone (estimate = 0.51, 95% CI = -0.66- -0.36 ; eta(2) = 0.32; P=

Original languageEnglish
Pages (from-to)138-144
Number of pages7
JournalScience and Medicine in Football
Volume8
Issue number2
Early online dateDec 2022
DOIs
Publication statusPublished - 2024

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