Football Research Group, Linköping University, Linköping, Sweden.
Br J Sports Med. 2013 Aug;47(12):743-7. doi: 10.1136/bjsports-2013-092383.
The influence of fixture congestion on injury rates and team performance has only been scarcely investigated.
To study associations between recovery time and match load and injury rates and team performance in professional football.
Exposure and time loss injuries were registered prospectively from 27 teams over 11 seasons. Matches were grouped according to recovery days before each match (≤3 vs >3 days, and ≤4 vs ≥6 days). Injury rates and team performance were compared between groups. Match load in match sequences containing five consecutive matches was determined by the number of days separating the first match and the last training session during that match sequence. Linear regression was used to study associations between match load and injury rates and team performance.
Team performance showed no association with match load, or recovery days prior to matches, except for Europa League matches that indicated more matches lost with short recovery (≤3 days) (p=0.048). Total injury rates and muscle injury rates were increased in league matches with ≤4 days compared with ≥6 days' recovery (RR 1.09, 95% CI 1.00 to 1.18, and RR 1.32, 95% CI 1.15 to 1.51, respectively), specifically hamstring and quadriceps injuries. High match load was associated with increase in muscle injury rate in matches in the same match sequence (p=0.012), and increase in ligament injury rate in training in the subsequent match sequence (p=0.003).
Fixture congestion was associated with increased muscle injury rates but had no, or very limited, influence on team performance.
固定装置拥挤对受伤率和团队表现的影响仅得到了很少的研究。
研究职业足球中恢复时间与比赛负荷以及受伤率和团队表现之间的关系。
前瞻性地从 27 支球队的 11 个赛季中登记了曝光和时间损失伤。根据每场比赛前的恢复天数将比赛分组（≤3 天与>3 天，以及≤4 天与≥6 天）。比较组间的受伤率和团队表现。在包含连续五场比赛的比赛序列中，通过在该比赛序列中第一场比赛和最后一次训练之间相隔的天数来确定比赛负荷。使用线性回归研究比赛负荷与受伤率和团队表现之间的关系。
团队表现与比赛负荷或比赛前的恢复天数没有关联，但与欧洲联赛的比赛除外，在这些比赛中，恢复时间较短（≤3 天）时，输掉的比赛更多（p=0.048）。与≥6 天的恢复相比，联赛中≤4 天的比赛总受伤率和肌肉受伤率更高（RR 1.09，95%CI 1.00 至 1.18，和 RR 1.32，95%CI 1.15 至 1.51，分别），尤其是腘绳肌和股四头肌损伤。在同一比赛序列中的比赛中，高比赛负荷与肌肉受伤率的增加相关（p=0.012），而在随后的比赛序列中的训练中，与韧带受伤率的增加相关（p=0.003）。
赛程密集与肌肉受伤率增加有关，但对团队表现没有影响，或影响非常有限。
