Weight cutting in athletes
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Prevalence and Methods of Weight Cutting in Athletes
Weight cutting is a widespread practice among athletes in weight-class sports such as combat sports, powerlifting, taekwondo, and judo. Studies show that a large majority of athletes, including 83% of world-class powerlifters and 77% of adolescent judoka, engage in weight cutting before competitions, often starting at a young age and regardless of experience level 210. Common methods include gradual dieting, fluid restriction, fasting, increased activity, use of saunas, diuretics, laxatives, and wearing rubber suits 210. In combat sports, athletes may also use extreme dehydration and energy restriction to achieve rapid weight loss 1346.
Physical and Performance Effects of Weight Cutting
The impact of weight cutting on exercise performance is mixed. Some research finds that rapid weight loss (RWL) can cause small reductions in maximal strength and repeated high-intensity performance immediately after cutting, but these effects may be restored after a period of rehydration and refueling before competition 13. However, larger and more extreme weight cuts (about 5% of body mass in less than 24 hours) are more likely to impair repeat-effort performance and physical capacity . Biomechanical studies suggest that weight regain after cutting may speed up reaction time but can also worsen striking accuracy and possibly decrease strike power, with overall effects remaining inconclusive .
Health Risks and Adverse Effects
Weight cutting, especially when extreme, poses significant health risks. Documented dangers include dehydration, electrolyte imbalances, acute kidney injury, and relative energy deficiency, as well as hormonal disturbances and increased cholesterol . Female athletes who engage in severe weight cutting are at increased risk for the female athlete triad, a syndrome involving low energy availability, menstrual dysfunction, and decreased bone mineral density . Adolescents are particularly vulnerable, as rapid weight loss methods can be harmful during growth and development .
Psychological and Behavioral Consequences
Most athletes report negative psychological effects from weight cutting, including fatigue, anger, anxiety, and feelings of isolation 259. Disordered eating behaviors are more common among athletes who cut weight, and the process is often described as unpleasant and challenging, though many believe it provides a competitive advantage 59. The psychological burden is compounded by societal and sport-specific pressures regarding body image and performance expectations .
Sources of Advice and Education
Athletes often rely on coaches, teammates, and social media for weight cutting advice, with only a minority consulting registered dietitian nutritionists 610. Those who use professional nutrition guidance tend to use fewer and potentially safer methods for weight cutting . There is a clear need for better education and evidence-based recommendations to minimize health risks and performance decrements 2310.
Conclusion
Weight cutting is a common and culturally ingrained practice in many weight-class sports, but it carries significant physical, psychological, and health risks, especially when performed rapidly or without professional guidance. While some athletes believe it offers a competitive edge, the evidence for performance benefits is mixed, and the potential for harm is well-documented. Improved education, safer practices, and professional support are essential to protect athlete health and well-being.
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