Abstract
Background: Rapid weight loss (RWL) practices are common amongst strength-sport athletes to 'make weight' for a chosen weight class. Aim: This study compared the RWL practices of International Powerlifting Federation (IPF) powerlifters from Great Britain. Methods: Participants (n = 69, male = 36, female = 33) were recruited from IPF lifting populations (mandatory <2-hour competition weigh-in). Participants were categorised based on highest level of competition (regional, national and international) and also sex (male and female). The previously validated 'Rapid Weight Loss Questionnaire' established RWL practices, however also included an open-ended question regarding thoughts, feeling and mood during RWL. Results: Nearly all participants (97%) had purposely acutely reduced body mass to compete, with an average typical pre-competition loss of 4.2%. Regional competitors reported a higher 'typical' body mass loss compared to international competitors (5.5% vs 3.3%, p = 0.004). Females reported a greater 'highest' body mass loss than males (6.7% vs 5.3%, p = 0.028). Fluid restriction (86.5%), water loading (67.2%) and increased exercise (49.2%) were the RWL methods most commonly used 'always' or 'sometimes'. Content analysis revealed a predominance of negative perceptions during RWL with the emergence of codes; fatigue, sensations, anxiety, low mood and irritation, accounting for ∼70% of responses. Conclusion: Prevalence of RWL is high amongst competitive powerlifters, with many competitors attributing negative perceptions during the weight-cutting process. The magnitude of reported acute RWL within regional lifters was beyond where performance decrements are commonly seen (>5%), this should be cautioned against given the IPF's mandatory <2-hour competition weigh-in.