Aspire Academy, Football Performance & Science Department, Qatar; Football Exchange, Research Institute of Sport Sciences, Liverpool John Moores University, UK.
Aspire Academy, Football Performance & Science Department, Qatar; Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Italy.
J Sci Med Sport. 2020 Feb;23(2):134-138. doi: 10.1016/j.jsams.2019.08.289. Epub 2019 Sep 18.
To investigate the impact of physical efforts performed in the period preceding activity as a potential risk factor of muscle injury during match-play within a sample of professional soccer players.
Observational cohort study.
Match load (running [>14.4-19.8km/h], high-speed running [>19.8-25.2km/h], sprinting [>25.2km/h], leading and explosive sprint type) averaged in 1-min and 5-min periods prior to an event or non event for 29 professional outfield soccer players. Conditional logistic and Poisson regression models estimated the relationship between load and injury for a 2 within-subject standard deviation in match load or 1-action increment in the number of sprinting activities, respectively. Associations were deemed beneficial or harmful based on non-overlap of the 95% confidence intervals against thresholds of 0.90 and 1.11, respectively.
An increment in sprinting distance [+2-SDs=11m] covered over a 1-min period (odds ratio [OR]: 1.22, 95%CI, 1.12 to 1.33) increased the odds of muscle injury.
Our study provides novel exploratory evidence that the volume of sprinting during competitive soccer match-play has a harmful association with muscle injury occurrence.
探究比赛前的体力活动对职业足球运动员比赛中肌肉损伤的潜在风险因素的影响。
观察性队列研究。
对 29 名职业外场足球运动员在比赛或非比赛前 1 分钟和 5 分钟内的平均比赛负荷（跑动速度[>14.4-19.8km/h]、高速跑动速度[>19.8-25.2km/h]、冲刺速度[>25.2km/h]、领先和爆发性冲刺类型）进行分析。条件逻辑回归和泊松回归模型分别估计了负荷与损伤之间的关系，以比赛负荷增加 2 个标准差或冲刺活动次数增加 1 次为单位。根据 95%置信区间与阈值 0.90 和 1.11 的非重叠情况，将关联判定为有益或有害。
1 分钟内冲刺距离增加 2 个标准差[+2-SDs=11m]会增加肌肉损伤的几率（比值比[OR]：1.22，95%CI：1.12 至 1.33）。
本研究提供了新的探索性证据，表明比赛中冲刺的总量与肌肉损伤的发生存在有害关联。
