Effect of 10% weight loss on simulated taekwondo match performance: a randomized trial

Fortes, Leonardo de Sousa; Vasconcelos, Gustavo César; Costa, Bruna; Paes, Pedro Pinheiro; Franchini, Émerson

doi:10.12965/jer.1735134.567

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…In the study by Fortes et al, they reported that a 10% reduction in body weight of the taekwondo athletes before the competition had no effect on match performance and did not improve taekwondo skills (Fortes, Vasconcelos, Costa, Paes and Franchini, 2017). In this study, the highest average weight loss rate of taekwondo athletes before the competition during the season is 4.52±2,77 kg in males and 4.40±5.36 kg in females.…”

Section: Discussionmentioning

confidence: 41%

Evaluation of the Rapid Weight Loss Practices of Taekwando Athletes and Their Effects

Seyhan¹

2018

JETS

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This study was conducted to determine the physiological and psychological effects of the weight loss by determining the weight loss methods commonly used by taekwondo athletes. Of the questionnaires evaluated, 107 belonged to female taekwondo athletes and 195 belonged to male taekwondo athletes. The arithmetic average, standard deviation and percent frequency (%) distributions of the obtained data were calculated. It was determined that the; first weight loss age for the competition is 15,66±3,84(kg) in males and 15,95±3,16(kg) in females; the highest weight loss rate before the competition is 4,52±2,77 (kg) in males and 4,40±5,36 (kg) in females. It was stated that 30.3% of male athletes and 41.1% of female athletes start to lose weight 3-4 weeks before the competition, that male and female athletes prefer the diet method most frequently as a rapid weight loss method and 21.5% of athletes who use the weight loss method with fluid loss prefer to run with raincoat. The athletes do not use ergogenic aids and the frequency percentage of physiological (muscle cramps, body temperature increase, heart throb, dyspnea, injury) and psychological (excessive nervousness, low performance due to high fatigue, stress) adverse effects of fast weight loss is very low.Conclusion: Unlike other martial athletes, it has been determined that Taekwondo athletes do not start to lose weight at an early age and that the majority of them try to reach the weight they want by applying the diet method among rapid weight loss methods in a very short time before the competition.

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Section: Discussionmentioning

confidence: 41%

Evaluation of the Rapid Weight Loss Practices of Taekwando Athletes and Their Effects

Seyhan¹

2018

JETS

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“…There are three positions on sport performance and RWL. The first posits an improvement in sport performance (Reale et al, 2016b;Coswig et al, 2018), the second suggests no changes (Choma et al, 1995;Yang et al, 2018), while the third supports a decrease in sport performance (e.g., Camarço et al, 2016;de Fortes et al, 2017;Zubac et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Multilevel Evaluation of Rapid Weight Loss in Wrestling and Taekwondo

2021

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The practice of strategies for rapid weight loss (RWL) involve diverse factors, such as individual expectations, social interactions, structural elements, etc., conforming to a “culture” of RWL, which must be evaluated and understood in a broad sense. Based on the need of a comprehensive evaluation of the use of RWL in practitioners of combat sports, an ad hoc questionnaire designed for this study, which includes the types and detailed descriptions of RWL strategies, that athletes currently use, the prevalence and frequency of use, the physiological and psychological consequences, the perception of the effect of RWL on their own performance and finally, the individuals who influence the adoption of this practice. One hundred and sixty combat athletes from wrestling and taekwondo disciplines, from Mexico, filled out this questionnaire. Data collected for their statistical analyses. Results revealed a RWL strategies prevalence of 96% across the participants. Our results revealed that 57% of those athletes using RWL lose more than 5% of their body mass. Across the athletes, the most commonly used RWL strategies and with higher intensity were increased exercise and training with plastic or thick clothes. The greater the relative weight loss, the greater the presence of physiological symptoms in athletes, such as rapid breathing and blood pressure. Athletes also mentioned mood states such as tiredness, sadness, confusion, fatigue and vigor, these last two positive and negative mood states are associated with the relative weight loss, respectively. Finally, the people who most influenced the adoption of RWL strategies were the coaches, parents and nutritionists. In conclusion, the questionnaire prepared for this study allowed us to obtain valuable information about the several factors, and their interactions, involved in the practice of RWL in combat athletes. This type of practice could increase health risks and decrease their performance. Therefore, here we state the importance of a comprehensive evaluation of RWL strategies that allows the development of psycho-educational and social-based interventions and programs for the promotion of proper weight maintenance, and prevention against RWL strategies, involving the individuals who influence the adoption of these practices and supporting it with the help of communication technologies.

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“…There has been a substantial but limited body of scientific research investigating the prevalence of weight-cutting in different combat sports [3,4,5,6], the different methods of weight loss [3,4,5,6,7,8], the influence on competitive performance [9,10,11,12], the physiological changes associated with weight-cutting [9,13,14,15,16,17] and methods to improve performance following weight-cutting [2,18]. Within this body of literature, there are conflicting findings on many of the topics mentioned above.…”

Section: Introductionmentioning

confidence: 99%

The Current State of Weight-Cutting in Combat Sports

Barley

Chapman

Abbiss

2019

Sports

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In combat sports, athletes are divided into categories based on gender and body mass. Athletes attempt to compete against a lighter opponent by losing body mass prior to being weighed (i.e., ‘weight-cutting’). The purpose of this narrative review was to explore the current body of literature on weight-cutting and outline gaps for further research. Methods of weight-loss include energy intake restriction, total body fluid reduction and pseudo extreme/abusive medical practice (e.g., diuretics). The influence of weight-cutting on performance is unclear, with studies suggesting a negative or no effect. However, larger weight-cuts (~5% of body mass in <24 h) do impair repeat-effort performance. It is unclear if the benefit from competing against a smaller opponent outweighs the observed reduction in physical capacity. Many mechanisms have been proposed for the observed reductions in performance, ranging from reduced glycogen availability to increased perceptions of fatigue. Athletes undertaking weight-cutting may be able to utilise strategies around glycogen, total body water and electrolyte replenishment to prepare for competition. Despite substantial discussion on managing weight-cutting in combat sports, no clear solution has been offered. Given the prevalence of weight-cutting, it is important to develop a deeper understanding of such practices so appropriate advice can be given.

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Effect of 10% weight loss on simulated taekwondo match performance: a randomized trial

Cited by 8 publications

References 19 publications

Evaluation of the Rapid Weight Loss Practices of Taekwando Athletes and Their Effects

Evaluation of the Rapid Weight Loss Practices of Taekwando Athletes and Their Effects

Multilevel Evaluation of Rapid Weight Loss in Wrestling and Taekwondo

The Current State of Weight-Cutting in Combat Sports

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