Impacto de um programa de treino por estações de alta intensidade na qualidade e quantidade de sono em adolescentes com sobrepeso e obesidade.

Abstract

Introduction: Overweight and obesity are a very important health problem. Despite this awareness, the number of individuals being overweight and obese, even at paediatric ages, is growing every day. One of the complications associated with this condition is alteration of sleep in both quality and quantity. Regular physical activity is recognized as one of the ways to treat and prevent obesity, as well as help in improving sleep problems. However, there is still a shortage of studies that evaluate the influence of physical exercise on improving the quality and quantity of sleep at paediatric ages. Objective: The objective of this study is to verify if regular practice of physical exercise has an influence on the quality and quantity of sleep in adolescents. Material and Methods: This study has a sample composed of 13 students (4 males and 9 females, age = 17 ± 1 years, weight = 73.2 ± 16.4 kg, BMI = 26.6 ± 4, 9) from João Gonçalves Zarco Secondary School, who participated for 8 months in a high intensity circuit-training program, 3 times a week. Anthropometric evaluations were performed for the basaline characterization. Two questionnaires were used to assess sleep: the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale. Results: Our study suggests that high intensity circuit training improves sleep latency in males, being the only sleep component to present significant improvements from the 1st moment to the 2nd moment (1.5 ± 1.0 vs. 0.5 ± 1.1, p <0.05). As for daytime sleepiness, the "sitting to talk" variable worsened from the 1st moment to the 2nd moment (0.0 ± 0.0 vs. 0.3 ± 0.5; P = 0.046). The same was observed for the variable "sitting after lunch, without alcohol intake" (0.9 ± 0.8 vs. 1.3 ± 1.0, P = 0.025). When performing a subanalysis by gender, we did not observe differences in the boys' group. However, the girls' group continued to show a significant increase for the "sitting-to-talk" variables (0.0 ± 0.0 vs. 0.4 ± 0.5; P = 0.046) and "sitting after lunch, without alcohol intake "(1.0 ± 0.7 vs. 1.4 ± 1.0, P = 0.046). Conclusion: The present study does not allow us to clarify with certainty the impact of a physical exercise program on high intensity circuit in sleep quality of overweight adolescents.