High consumption of ultra-processed foods is associated with lower muscle mass in Brazilian adolescents in the RPS birth cohort.

OBJECTIVE: The aim of this study was to investigate the association between percent contribution of ultra-processed foods to total dietary energy intake and measurements of body composition obtained using high-validity methods. METHODS: This was a cross-sectional study with 1525 adolescents 18 to 19 y of age from the second follow-up of the 1997/98 São Luís birth cohort, Brazil. To evaluate nutritional status and body composition, the body mass index (BMI)-for-age was used, along with waist circumference, total and android body fat percentage, muscle mass, and the lean mass index (LMI). Food consumption was evaluated by a food frequency questionnaire. Food items were grouped according to the level of processing as per the NOVA classification. Through semi-structured questionnaires, sociodemographic and lifestyle data were abstracted. Adjusted linear regression models were used to evaluate the associations between consumption of ultra-processed foods and body composition measurements. RESULTS: Total average energy consumption was 2919.7 kcal, with 58% (1634.9 kcal) derived from natural or minimally processed foods and 37% (1136.5 kcal) from ultra-processed products. In the adjusted analyses, BMI, muscle mass, and LMI were inversely associated with consumption of ultra-processed foods. A 1% increase in the percent contribution of ultra-processed items to total dietary energy intake was associated with a 0.04 kg decrease in muscle mass (ß = -0.04; 95% confidence interval [CI], -0.06 to -0.02; P < 0.001) and a 0.01 kg/m2 decrease in lean body mass (ß = -0.01; 95% CI, -0.02 to -0.01; P < 0.001). CONCLUSION: The contribution of ultra-processed foods to total dietary energy intake of Brazilian adolescents was associated with body composition, especially with decreasing lean body mass.

Transtornos alimentares e insatisfação com a imagem corporal em bailarinos / Eating disorders and dissatisfaction with body image in ballet dancers / Trastornos alimentarios e insatisfacción con la imagen corporal en bailarines

INTRODUÇÃO: Os transtornos alimentares (TA) tornaram-se um problema relevante de saúde pública. Paralelamente a esse fato, observa-se aumento na frequência de problemas associados à percepção da imagem corporal. Esses transtornos alimentares são mais incidentes em praticantes de esportes que preconizam o baixo peso corporal, como o balé clássico. OBJETIVO: Determinar a prevalência de comportamentos de risco de transtornos alimentares e insatisfação com a imagem corporal em bailarinos adolescentes na cidade de São Luís, MA, Brasil. MÉTODOS: Realizou-se estudo transversal com 30 bailarinos clássicos, não profissionais de ambos os sexos, com idade de 15 a 19 anos. Para avaliação do comportamento de risco de anorexia nervosa, utilizou-se o teste de atitudes alimentares (EAT-26), e para o comportamento de risco de bulimia nervosa, o teste de investigação bulímica de Edimburgo (BITE). A imagem corporal foi avaliada por meio do questionário de imagem corporal (BSQ). RESULTADOS: A prevalência de comportamentos de risco de TA foi de 30,0% para anorexia nervosa, de acordo com o EAT-26 e, segundo a escala de sintomas do BITE, 40,0% apresentaram comportamento de risco de bulimia nervosa. Além disso, o BSQ identificou que 26,7% dos bailarinos estavam insatisfeitos com sua imagem. Analisando o comportamento de risco de TA e a insatisfação com a imagem corporal, por sexo, não houve diferença estatisticamente significante (p > 0,05). CONCLUSÃO: A alta incidência de insatisfação com a imagem corporal associada à grande prevalência de comportamentos de risco de TA encontrada neste estudo ratifica que a prática do balé parece ser um fator primordial para o aumento da suscetibilidade desses bailarinos desenvolverem TA. .

INTRODUCTION: Eating disorders (ED) have become an important public health problem. Alongside this fact, there is an increase in the frequency of problems associated with the perception of body image. These eating disorders are more incident in sports practitioners who advocate low body weight as classical ballet. OBJECTIVE: This study aimed to determine the prevalence of risk behaviors of eating disorders and body image dissatisfaction in adolescent ballet dancers in the city of São Luís, MA, Brazil. METHODS: A cross-sectional study was conducted with 30 non-professional classical ballet dancers of both sexes, aged between 15 and 19 years. To evaluate the risk behavior of anorexia nervosa, we used the eating attitudes test (EAT-26), and the risk behavior of bulimia nervosa, the Bulimic investigatory test, Edinburgh (BITE). Body image was evaluated using the body shape questionnaire (BSQ). RESULTS: The prevalence of risk behaviors for eating disorders was 30.0% for anorexia nervosa, according to the EAT-26 and, second the BITE symptom scale, 40.0% had risk behavior of bulimia nervosa. In addition, the BSQ identified that 26.7% of the dancers were dissatisfied with their image. Analyzing the risk behaviors of eating disorders and the body image dissatisfaction by gender, there was no statistically significant difference (p>0.05). CONCLUSION: The high incidence of dissatisfaction with the body image associated with the high prevalence of risk behaviors of ED found in this study confirms that the practice of ballet seems to be a primary factor for the increased susceptibility these ballet dancers to develop eating disorders. .

INTRODUCCIÓN: Los trastornos alimentarios (TA) se han vuelto un problema relevante de salud pública. Paralelamente a ese hecho, se observa aumento en la frecuencia de problemas asociados a la percepción de la imagen corporal. Esos TA son más incidentes en practicantes de deportes que preconizan el bajo peso corporal, como el balé clásico. OBJETIVO: Determinar la prevalencia de comportamientos de riesgo de trastornos alimentarios e insatisfacción con la imagen corporal en bailarines adolescentes en la ciudad de São Luís, MA, Brasil. MÉTODOS: Se realizó estudio transversal con 30 bailarines clásicos, no profesionales de ambos sexos, con edad de 15 a 19 años. Para evaluación del comportamiento de riesgo de anorexia nerviosa, se usó el test de actitudes alimentarias (EAT-26), y para el comportamiento de riesgo de bulimia nerviosa, el test de investigación bulímica de Edimburgo (BITE). La imagen corporal fue evaluada por medio del cuestionario de imagen corporal (BSQ). RESULTADOS: La prevalencia de comportamientos de riesgo de TA fue de 30,0% para anorexia nerviosa, de acuerdo con el EAT-26 y, según la escala de síntomas de BITE, 40,0% presentó comportamiento de riesgo de bulimia nerviosa. Además, el BSQ identificó que 26,7% de los bailarines estaba insatisfecho con su imagen. Analizando el comportamiento de riesgo de TA y la insatisfacción con la imagen corporal, por sexo, no hubo diferencia estadísticamente significativa (p > 0,05). CONCLUSIÓN: La alta incidencia de insatisfacción con la imagen corporal asociada a la gran prevalencia de comportamientos de riesgo de TA encontrada en este estudio ratifica que la práctica de balé parece ser un factor primordial para el aumento de la susceptibilidad de que esos bailarines desarrollen TA. .