Centre for Human and Applied Physiology, School of Medicine, University of Wollongong, Wollongong, NSW, Australia.
NSW Football Medicine Association, Sydney, NSW, Australia.
Scand J Med Sci Sports. 2019 Dec;29(12):1941-1951. doi: 10.1111/sms.13532. Epub 2019 Aug 22.
Although the 11+ program has been shown to reduce injuries in sub-elite football, program compliance is typically poor, suggesting that strategies to optimize delivery are necessary. This study investigated the effect of rescheduling Part 2 of the three-part 11+ program on program effectiveness. Twenty-five semi-professional football clubs were randomly allocated to either a Standard-11+ (n = 398 players) or P2 group (n = 408 players). Both groups performed the 11+ program at least twice a week throughout the 2017 football season. The Standard-11+ group performed the entire 11+ program before training activities commenced, whereas the P2 group performed Parts 1 and 3 of the 11+ program before and Part 2 after training. Injuries, exposure, and individual player 11+ dose were monitored throughout the season. No significant between group difference in injury incidence rate (P2 vs Standard-11+ = 11.8 vs 12.3 injuries/1000 h) was observed. Severe time loss injuries > 28 days (33 vs 58 injuries; P < .002) and total days lost to injury (4303 vs 5815 days; P < .001) were lower in the P2 group. A higher 11+ program dose was observed in the P2 (29.1 doses; 95% CI 27.9-30.1) versus Standard-11+ group (18.9 doses; 95% CI 17.6-20.2; P < .001). In semi-professional football, rescheduling Part 2 of the 11+ program to the end of training maintained the effectiveness of the original 11+ program to reduce injury incidence. Importantly, rescheduling Part 2 improved player compliance and reduced the number of severe injuries and total injury burden, thereby enhancing effectiveness of the 11+ program.
尽管 11+ 项目已被证明可减少次精英足球中的受伤，但该项目的执行通常较差，这表明需要制定策略来优化其实施。本研究调查了重新安排三部分 11+ 项目的第 2 部分对项目效果的影响。25 家半职业足球俱乐部被随机分配到标准 11+ 组（n=398 名球员）或 P2 组（n=408 名球员）。两组在 2017 赛季的整个赛季中每周至少进行两次 11+ 项目训练。标准 11+ 组在训练活动开始前完成 11+ 项目的全部内容，而 P2 组在训练前完成 11+ 项目的第 1 部分和第 3 部分，然后完成第 2 部分。整个赛季中监测受伤、暴露和个人 11+ 剂量。未观察到损伤发生率的组间差异有统计学意义（P2 组 vs 标准 11+ 组=11.8 比 12.3 例/1000 小时）。严重的失时大于 28 天的损伤（33 比 58 例；P<.002）和总失时天数（4303 比 5815 天；P<.001）在 P2 组中较低。在 P2 组中观察到更高的 11+ 项目剂量（29.1 剂量；95%CI 27.9-30.1）与标准 11+ 组（18.9 剂量；95%CI 17.6-20.2；P<.001）。在半职业足球中，将 11+ 项目的第 2 部分重新安排到训练结束时，可保持原始 11+ 项目减少受伤发生率的效果。重要的是，重新安排第 2 部分提高了球员的依从性，并减少了严重受伤的数量和总受伤负担，从而提高了 11+ 项目的效果。
