RESUMEN
BACKGROUND: The present study examines the effects of the COVID-19 confinement on healthrelated behaviors (physical activity, sedentary behaviors) of young French children. METHODS: Parents of 348 French children under 6 years of age completed an online survey launched during the first days of the initial COVID-19-related confinement. They were asked to indicate whether their kids increased, decreased or maintained their physical activity level, time spent in sedentary behaviors, and sleep time. Information regarding the configuration of their home environment (access to outdoor facilities, implantation area) and lifestyle habits (solitary activity, parents' solicitation; nap time; night waking episodes and night duration) were also collected. RESULTS: A total of 25.0% of the children were reported to decrease, 24.7% maintained and 50.3% increase their physical activity during the confinement. Greater proportions of kids who had access to a collective (51.4%) or individual (53.7%) outdoor area increased their physical activity. Regardless of the housing situation (urban, suburban or rural) or access to outdoor facilities, the majority of children increased their screen time (60.4%). Two-thirds (66.7%) of parents reported nap time remained unchanged for their kids. Fifty-one percent of parents admitted a link between teleworking and their kids' screen time. CONCLUSIONS: Health behaviors were differentially impacted in very young kids during a confinement period. Importantly, a majority of parents admitted a causal effect of telecommuting on their kids' screen exposure. The present results also show that the proneness to increase physical activity during confinement is positively related to access to a favorable outdoor environment.
RESUMEN
High-intensity interval training (HIIT) has been suggested as an effective alternative to traditional moderate-intensity continuous training (MICT) that can yield improvements in a variety of health outcomes. Yet, despite the urgent need to find effective strategies for the treatment of pediatric obesity, only a few studies have addressed the impact of HIIT on eating behaviors and body composition in this population. This study aimed to compare the effect of HIIT versus MICT on eating behaviors in adolescents with obesity and to assess if the participants' baseline dietary status is associated with the success of the intervention. Forty-three adolescents with obesity were randomly assigned to a 16-week MICT or HIIT intervention. Body composition and 24-h ad libitum energy intake were assessed at baseline and at the end of the program. Restrained eating, emotional eating, and external eating were assessed using the Dutch Eating Behavior Questionnaire at baseline. Both interventions led to significant weight, body mass index (BMI), and fat mass percentage (FM%) reductions, with better improvements in FM% in the HIIT group; whereas 24-h ad libitum energy intake increased to a similar extent in both groups. HIIT provides better body composition improvements over MICT, despite a similar increase in energy intake. Restrained eaters experienced less weight loss and smaller BMI reduction compared with unrestrained eaters; higher baseline cognitively restrained adolescents showed a greater increase of their ad libitum energy intake. Novelty HIIT favors better body composition improvements compared with MICT. Both MICT and HIIT increased ad libitum energy intake in adolescents with obesity. Weight loss achievement is better among unrestrained eaters.