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Table 1 Weight loss prevalence and magnitude in combat sports’ athletes

From: Weight loss in combat sports: physiological, psychological and performance effects

Sample Prevalence Magnitude Authors
Brazilian judo (n = 145) Males: 62.8% Malesa: 5.6 ± 2.2 kg Brito et al.[10]
8.5 ± 4.2%
Brazilian jujitsu (n = 155) Males: 56.8% Malesa: 2.9 ± 1.5 kg
4.1 ± 2.0%
Brazilian karate (n = 130) Males: 70.8% Malesa: 2.5 ± 1.1 kg
3.6 ± 2.2%
Brazilian taekwondo (n = 150) Males: 63.3% Malesa: 3.2 ± 1.2 kg
4.3 ± 3.2%
Iranian wrestling (n = 436) 62% 3.3 ± 1.8 kg (5.0 ± 2.6%) Kordi et al.[17]
Brazilian judo (n = 822) 86% (all categories) Most of the athletes reduced between 2–5% Artioli et al.[5]
89% (heavyweights excluded)
Brazilian judo (n = 105 males and 20 females) Males: 77.1% Males: 4.5 ± 3.5 kg Fabrini et al.[19]
Females: 55.0% Females: 1.7 ± 0.8 kg
USA judo (n = NR) 70–80% NR Horswill[20]
Brazilian Olympic Boxing Team 100% 5.8 kg Perón et al.[13]
Canadian taekwondo (n = 28) 53% NR Kazemi et al.[11]
USA high school wrestling (n = 2352) 62% 2.9 ± 1.3 kg Kinigham and Gorenflo[21]
4.3 ± 2.3%
USA college wrestling (n = 63) 89% 5 kg Steen and Brownell[6]
USA high school wrestling (n = 368) 70% 2.3 kg  
USA high school wrestling (n = 747) NR 3.1 ± 2.4 kg Tipton and Tcheng[22]
  1. NR = not reported; a = weight loss for the week before competition.