Browsing by Author "Costa Ferreira, Willian"

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    Overweight in adolescents: a possible association between sleep quality and eating behavior according to sex
    (2023-07-26) Almeida, Letícia; Nanuncio Capucho, Virgínia Benedetti; de Souza Marques, Déborah Cristina; Costa Ferreira, Willian; Ferrari Silva, Bruno; Valdés-Badilla, Pablo; Magnani Branco, Braulio Henrique
    Introduction: Obesity is a multifactorial disease affecting adolescent sleep quality and binge eating. Objective: to analyze adolescents’ sleep quality and possible binge eating according to sex and nutritional status. Methods: 108 adolescents (n = 51 male and n = 57 female) aged between 10 to 18 years were recruited. Body composition was assessed by bioelectrical impedance, in which the following variables were collected: body weight, body fat percentage, and resting metabolic rate. The Z-score was calculated and classified by height and weight as eutrophic and overweight. Subsequently, the adolescents answered the Brazilian version of the Pittsburgh Sleep Quality Index (PSQI) questionnaire and the binge eating - Periodic Eating Compulsion Scale (BES) questionnaire to assess possible periodic eating compulsion. Results: In the anthropometric analysis, male adolescents showed greater height (p<0.0001), body weight (p<0.05), resting metabolic rate (p<0.0001), total body water (p<0.0001), lean mass (p<0.0001), fat-free mass (p<0.0001) and skeletal muscle mass (p= 0.01) compared to female adolescents. However, female adolescents had a higher body fat percentage when compared to male adolescents (p= 0.01). In addition, overweight adolescents of both sexes had higher BES scores compared to eutrophic ones (p<0.05), with higher scores for females compared to males (p<0.05). However, no differences were observed between overweight and eutrophic individuals of both sexes for PQSI (p>0.05). Conclusion: Binge eating was identified in both sexes and may be related to poor sleep quality.
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    Proposal of a Normative Table for Classification of Body Fat Percentage in Brazilian Jiu-Jitsu Athletes
    (2022) de Souza Cerqueira, Beatriz; Baú Cerqueira, Mateus; Costa Ferreira, Willian; Mendes de Oliveira, Fabiano; Vidal Andreato, Leonardo; dos Santos-Junior, Rubens Batista; Valdés-Badilla, Pablo; Magnani Branco, Braulio Henrique
    Previous evidence indicates that body fat can distinguish Brazilian jiu-jitsu (BJJ) athletes according to the competitive level. However, propositions of cut-off points for establishing classifications of body fat percentage for combat sports athletes and, specifically, for BJJ athletes are still incipient in the literature. In this sense, the main aim of the present study was to establish a normative table for the classification of body fat percentage in BJJ athletes. As a secondary aim, athletes were compared according to competitive level. Ninety male BJJ athletes (aged: 29.0 ± 8.2 years; practice time: 6.0 ± 2.1 years; body mass: 82.1 ± 12.7 kg; height: 175.9 ± 6.5 cm; fat mass: 16.0 ± 8.9 kg; bone mineral content: 3.7 ± 0.6 kg; muscle mass: 37.9 ± 5.4 kg; body fat percentage: 17.3 ± 6.8 %; basal metabolic rate: 1811.4 ± 193.4 kcal) from different competitive levels: state (n= 42), national (n= 26) and international (n= 22) took part in this study. All athletes had their body composition measured via tetrapolar bioelectrical impedance. Percentiles p10, p25, p50, p75, and p90 were used to establish the classification. As a result, the following classification was obtained: <7.7 % (very low); ≥7.7-11.5 % (low); 11.6-17.0 % (medium); 17.1-24.0 % (high) and ≥24.1 % (very high). State-level athletes had a higher fat percentage than national and international-level athletes (p<0.05). The proposed cut-off points can help professionals responsible for sports training and nutritional prescription in monitoring the body fat of BJJ athletes.