Efeitos de aspectos motivacionais nos níveis de atividade física de crianças com excesso de peso após uma intervenção multicomponente com ênfase na iniciação esportiva

Abstract

The aim of this study was to examine the effect of a multicomponent intervention with emphasis on sports initiation in the level of physical activity (PA) of the overweight children. The study comprised79 65 children aged nine to 12 years (10.2 ± 1.07) allocated non-randomly into intervention (IG; n = 31) and control group (CG; n = 34). The intervention program lasted 16 weeks having 32 sports initiation and health education sessions in addition to regular communication between parents and researchers. The mean of time per hour in light, moderate and vigorous PA was measured by accelerometry at pre and post-intervention moments. Analyzes were performed by protocol (at least frequency of 70% on the intervention sessions) and by intent to treat (all participants). There were not identified difference between groups (p>.05) at pre-intervention moment. Most participants were male (69.2%) and overweight (66.7%). After intervention period, compared to base line, the IG improved all intensities of PA (p<.05), while the CG had no changes (p>.05). These results were found both in the analysis by protocol and in the analysis by intent to treat. In conclusion, an extra class multicomponent intervention program with emphasis on sports initiation performed for 16 weeks improves the level of all PA intensities of overweight children