Doherty Colin S, Barley Oliver R, Fortington Lauren V
School of Medical and Health Sciences, Edith Cowan University, Australia.
School of Medical and Health Sciences, Edith Cowan University, Australia.
J Sci Med Sport. 2025 Jun;28(6):465-474. doi: 10.1016/j.jsams.2025.01.007. Epub 2025 Jan 22.
To explore the potential association between rapid weight changes and self-reported injury status (presence or absence of injury) 7 days following competitive events among male and female combat sports competitors.
A 14-month study of 24 events.
A weight management questionnaire was completed 1-day post-competition, and an injury questionnaire was completed 7 days post-competition. These online questionnaires provided data on body mass and injury status. Mixed effects logistic regression models were used to analyse the odds ratios of rapid weight change variables and their impact on athletes' self-reporting as injured or non-injured.
There were 172 responses (155 athletes) to both questionnaires (37 females (24 %) and 118 males (76 %)); 88 athletes (51 %) reported no injury, and 84 (49 %) reported injury. Rapid weight loss 7 days (RWL -7 days) and 24 h (RWL -24 h) before weigh-ins was 4.9 % ± 3.4 % and 2.6 % ± 2.1 % for females, and 6.1 % ± 3.2 % and 3.0 % ± 1.9 % for males. Mixed effects logistic regression models returned the highest odds ratio for male RWL -24 h (odds ratio: 1.20, 95 % confidence interval: 1.00-1.43, p = 0.044). This indicates that for a 1 % increase in male RWL -24 h before official weigh-ins, the likelihood of reporting an injury increases by a factor of 1.2.
Male RWL -24 h before weigh-ins is associated with reporting an injury at 7 days post-competition. Therefore, athletes and coaches should carefully consider and aim to limit pre-competition rapid weight loss to minimise the likelihood of injury.
探讨男女格斗运动参赛者在竞技赛事7天后体重快速变化与自我报告的受伤状况（受伤或未受伤）之间的潜在关联。
一项针对24场赛事的为期14个月的研究。
赛后1天完成一份体重管理问卷，赛后7天完成一份受伤情况问卷。这些在线问卷提供了体重和受伤状况的数据。使用混合效应逻辑回归模型分析体重快速变化变量的比值比及其对运动员自我报告受伤或未受伤的影响。
两份问卷共收到172份回复（155名运动员）；37名女性（24%）和118名男性（76%）；88名运动员（51%）报告未受伤，84名（49%）报告受伤。称重前7天（RWL -7天）和24小时（RWL -24小时）女性的快速体重减轻分别为4.9%±3.4%和2.6%±2.1%，男性分别为6.1%±3.2%和3.0%±1.9%。混合效应逻辑回归模型得出男性RWL -24小时的比值比最高（比值比：1.20，95%置信区间：1.00 - 1.43，p = 0.044）。这表明在官方称重前男性RWL -24小时每增加1%，报告受伤的可能性增加1.2倍。
称重前男性RWL -24小时与赛后7天报告受伤有关。因此，运动员和教练应仔细考虑并旨在限制赛前快速减重，以尽量减少受伤的可能性。
