Effect of the COVID-19 quarantine on body weight among combat sports athletes

Abstract

Introduction: Due to the high prevalence of overweight and obesity new strategies are needed for its prevention and treatment. Nutritional coaching (NC) has been shown to be effective in weight reduction although, due to the novelty of this concept, it's not always used properly. Objective: To verify if NC, in addition to dietary assessment, is an effective approach to weight loss in overweight or obese population compared to technical dietary assessment. Material and methods: We performed a search for papers related to NC to establish quality parameters for this intervention. A systematic review was conducted, including randomized controlled trials that apply CN according to the selected parameters and comparing it with technical dietary assessment. Results: Eight high quality studies were included in the analysis. Among these, six revealed statistical differences on behalf of the group that received NC. Conclusion: Nutritional coaching is an effective approach for weight reduction. Future nutritional coaching intervention research would benefit from clear definitions of this new model.

Monitoring body mass status during the COVID-19 quarantine in combat and aesthetic sports

“…The findings of this study, that combat sports athletes experienced body mass increase during the pandemic, support a previous study by Herrera-Valenzuela [21]. In Herrera-Valenzuela's study [21], it was concluded that Brazilian Jiu-Jitsu, boxing, Judo, Karate, Kickboxing & Muay Thai, Mixed Martial Arts, and Taekwondo athletes had experienced body mass increase during the 20-day quarantine period in the COVID-19 pandemic.…”

“…The findings of this study, that combat sports athletes experienced body mass increase during the pandemic, support a previous study by Herrera-Valenzuela [21]. In Herrera-Valenzuela's study [21], it was concluded that Brazilian Jiu-Jitsu, boxing, Judo, Karate, Kickboxing & Muay Thai, Mixed Martial Arts, and Taekwondo athletes had experienced body mass increase during the 20-day quarantine period in the COVID-19 pandemic. Although the findings of the present study were similar to previous studies, this study presents certain novel aspects such as (1) the inclusion of certain combat sports such as Pencak Silat, (2) the measurement of a longer quarantine period, (3) and the comparisons with aesthetics sports.…”

“…This especially happens to combat sports athletes who cannot do real training due to physical distancing policies. We interested to study that conducted by Herrera-Valenzuela et al [21]. The study evaluated the effect of COVID-19 quarantine on body mass in 234 men's combat sports athletes, and concluded that combat sports athletes experienced an increase in body mass during the COVID-19 quarantine.…”

Basal metabolic rate for high-performance female karate athletes

“…In an OCS such as karate athletes compete according to body weight divisions in order to promote sports equity in terms of body mass, and many use rapid weight loss procedures (2-10 % reduction in body mass during the week before the competition) to compete in lighter divisions and against smaller and weaker opponents. Therefore, most athletes train with a body mass greater than their competition division, and after the official weigh-in there is a rapid weight gain to compete, thus generating continuous changes in body mass (4). According to Reale et al (5) "although some have called for the cessation of AWL altogether (6), another more pragmatic approach is to educate athletes about safer practices around AWL and recovery to reduce the potential health risks and performance decrements".…”

O Índice de Adiposidade Central (IAC) é uma alternativa para avaliação de atletas femininas de Karatê de alto rendimento durante a pandemia de COVID-19?

“…Uma recente investigação com 234 atletas do sexo masculino com experiência de 14 anos nos diferentes esportes de combate (Brazilian Jiu-Jitsu, Boxe, Judô, Karatê, Kick Boxing, Muay Thai, Mixed Martial Arts: MMA, Taekwondo), provenientes da Argentina (n=38); Bolívia (n=1); Brasil (n=105); Chile (n=30); El Salvador (n=1); Espanha (n=22); México (n=22) e Peru (n=15), constatou que estes ganharam em média 2% do peso inicial (~1,7 kg) em 20 ± 5 dias de quarentena (Herrera-Valenzuela et al, 2020). A hipótese mais aceita, frente ao quadro de redução de atividade física e concomitante aumento do consumo alimentar; é o ganho de peso em gordura corporal, indicando a necessidade do emprego da avaliação da composição corporal, para melhor definição desta suposição.…”