Doherty Colin S, Fortington Lauren V, Barley Oliver R
School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA 6027, Australia.
Sports (Basel). 2024 Oct 16;12(10):280. doi: 10.3390/sports12100280.
This study investigates the rapid weight loss (RWL) and rapid weight gain (RWG) of contest winners and losers from Muay Thai (MT) and mixed martial arts (MMA) events. The relationship between rapid weight change variables of males and females, and competitive success is also examined. Data from a weight management questionnaire was collected one day post-competition from 185 participants across 24 fight events, resulting in 263 responses (MMA: n = 78, MT: n = 185). Official and secondary weigh-in data were provided by the Combat Sports Commission. The results show that in MT, contest winners compared to losers had significantly greater RWL-7 days (5.9 ± 2.6% vs. 4.6 ± 2.7%, = 0.01), RWG (6.2 ± 2.9% vs. 4.7 ± 2.8%, = 0.003), and RWG/RWL ratio (108% [86-132%] vs. 86% [60-119%], = 0.038), while no significant differences were observed for MMA. Mixed logistic regression models that controlled for age showed that a 1% increase in female RWL-24 h ([OR = 1.57, R = 0.105, = 0.001]) was associated with a 1.6 times higher likelihood of winning compared to female athletes without this increase. We emphasise that associations do not imply causation, and it is possible that other factors which align with rapid weight change practices may impact the observed relationship. Nonetheless, MT contest winners show greater RWL, RWG, and RWG/RWL ratio than losers, and female rapid weight changes appear to be associated with competitive success in this cohort.
本研究调查了泰拳（MT）和综合格斗（MMA）赛事中比赛胜负者的快速体重减轻（RWL）和快速体重增加（RWG）情况。同时还研究了男性和女性快速体重变化变量与比赛成功之间的关系。在24场格斗赛事结束后的一天，从185名参与者那里收集了体重管理问卷数据，共得到263份回复（MMA：n = 78，MT：n = 185）。格斗运动委员会提供了官方和二次称重数据。结果显示，在泰拳比赛中，与失利者相比，获胜者的7天RWL显著更高（5.9±2.6%对4.6±2.7%，P = 0.01），RWG更高（6.2±2.9%对4.7±2.8%，P = 0.003），RWG/RWL比率更高（108%[86 - 132%]对86%[60 - 119%]，P = 0.038），而综合格斗赛事中未观察到显著差异。控制年龄的混合逻辑回归模型表明，与未出现这种增加的女运动员相比，女性24小时RWL每增加1%（[OR = 1.57，R = 0.105，P = 0.001]），获胜的可能性就高出1.6倍。我们强调，关联并不意味着因果关系，与快速体重变化做法相关的其他因素可能会影响所观察到的关系。尽管如此，泰拳比赛获胜者的RWL、RWG和RWG/RWL比率比失利者更高，并且在这一队列中，女性的快速体重变化似乎与比赛成功相关。
