TecnoCampus, Departament de Ciències de la Salut, Grup de Recerca Tecnologia Aplicada a l'Alt Rendiment i la Salut (TAARS), Universitat Pompeu Fabra, Mataró, Spain.
Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain.
J Sports Sci. 2024 Jun;42(12):1130-1146. doi: 10.1080/02640414.2024.2386209. Epub 2024 Aug 1.
This study aimed to assess acute and residual changes in sprint-related hamstring injury (HSI) risk factors after a football (soccer) match, focusing on recovery within the commonly observed 72-h timeframe between elite football matches. We used a multifactorial approach within a football context, incorporating optical and ultrastructural microscopic analysis of BFlh (biceps femoris long head) muscle fibres, along with an examination of BFlh fibre composition. Changes in sprint performance-related factors and HSI modifiable risk factors were examined until 3 days after the match (MD ) in 20 football players. BFlh biopsy specimens were obtained before and at MD in 10 players. The findings indicated that at MD , sprint-related performance and HSI risk factors had not fully recovered, with notable increases in localized BFlh fibre disruptions. Interestingly, match load (both external and internal) did not correlate with changes in sprint performance or HSI risk factors nor with BFlh fibre disruption. Furthermore, our study revealed a balanced distribution of ATPase-based fibre types in BFlh, with type-II fibres associated with sprint performance. Overall, the results suggest that a 72-h recovery period may not be adequate for hamstring muscles in terms of both HSI risk factors and BFlh fibre structure following a football match.
本研究旨在评估足球比赛后与短跑相关的腘绳肌损伤(HSI)风险因素的急性和残留变化,重点关注在精英足球比赛之间常见的 72 小时观察期内的恢复情况。我们在足球环境中采用多因素方法,结合 BFlh(股二头肌长头)肌肉纤维的光学和超微结构分析,以及 BFlh 纤维成分的检查。在 20 名足球运动员中,我们检查了与冲刺表现相关的因素和 HSI 可改变的风险因素的变化,直到比赛后 3 天(MD)。在 10 名运动员中,我们在比赛前和 MD 时获取了 BFlh 活检样本。研究结果表明,在 MD 时,与短跑相关的表现和 HSI 风险因素尚未完全恢复,局部 BFlh 纤维中断明显增加。有趣的是,比赛负荷(外部和内部)与冲刺表现或 HSI 风险因素的变化以及 BFlh 纤维中断均无相关性。此外,我们的研究还揭示了 BFlh 中基于 ATPase 的纤维类型的平衡分布,其中 II 型纤维与短跑表现相关。总的来说,这些结果表明,在足球比赛后,72 小时的恢复期可能不足以使腘绳肌恢复到 HSI 风险因素和 BFlh 纤维结构的正常状态。