Rehabilitation Department, Aspetar Orthopaedic and Sports Medicine Hospital, Aspire Zone Foundation, Doha, Qatar.
Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Scand J Med Sci Sports. 2018 Oct;28(10):2153-2163. doi: 10.1111/sms.13224. Epub 2018 Jun 8.
Hamstring injuries remain a significant burden in sports that involve high-speed running. In elite male football, hamstring injury has repeatedly been identified as the most common non-contact injury, representing 12% of all injuries. As the incidence remains high, investigations are aimed at better understanding how to improve prevention efforts. Intrinsic risk factors such as strength have been investigated extensively in a cohort of professional football players; however, other intrinsic measures of neuromuscular function have not been studied in this cohort. This study aims to investigate the association between timing of hamstring muscle activity onset and the rate of torque development during the early phase of isokinetic strength testing with risk of hamstring injury in professional football players in a prospective cohort study. All teams (n = 18) eligible to compete in the premier football league in Qatar underwent a comprehensive strength assessment during their annual periodic health evaluation at Aspetar Orthopaedic and Sports Medicine Hospital in Doha, Qatar. Variables included rate of torque development and timing of muscle activity onset. A total of 367 unique players (60.6% of all QSL players) competed for 514 player seasons (103 players competed both seasons) and sustained 65 hamstring injuries. There was no difference in the onset of muscle activity between the biceps femoris and medial hamstrings comparing the injured to uninjured players. For both onset of muscle activity and rate of torque development, there were no significant differences between any of the variables (P > .05), with small effect sizes detected across all the different variables (d < 0.3). Rate of torque development and onset of muscle activity were not associated with a risk of future hamstring injury. The use of these measures as part of a periodic health evaluation to identify risk of hamstring injury is unsupported.
腘绳肌损伤仍然是涉及高速奔跑的运动中的一个重大负担。在精英男性足球中，腘绳肌损伤已反复被确定为最常见的非接触性损伤，占所有损伤的 12%。由于发病率仍然很高，因此研究旨在更好地了解如何加强预防措施。在职业足球运动员队列中，已经广泛研究了内在风险因素（如力量）；然而，在该队列中尚未研究其他内在的神经肌肉功能测量值。本研究旨在探讨在职业足球运动员的前瞻性队列研究中，腘绳肌肌肉活动起始时间与等速力量测试早期阶段的扭矩发展率之间的关联与腘绳肌损伤的风险。所有有资格参加卡塔尔顶级足球联赛的球队（n=18）都在卡塔尔多哈的 Aspetar 骨科和运动医学医院进行了全面的力量评估。变量包括扭矩发展率和肌肉活动起始时间。共有 367 名独特的球员（60.6%的所有 QSL 球员）参加了 514 个球员赛季（103 名球员参加了两个赛季），并遭受了 65 次腘绳肌损伤。受伤和未受伤的运动员相比，股二头肌和内侧腘绳肌的肌肉活动起始时间没有差异。在肌肉活动起始时间和扭矩发展率方面，所有变量之间均无显着差异（P>.05），所有不同变量的效应量均较小（d<0.3）。扭矩发展率和肌肉活动起始时间与未来腘绳肌损伤的风险无关。这些措施作为定期健康评估的一部分，用于识别腘绳肌损伤的风险是没有依据的。
