Effect of a 1-year lifestyle intervention on physical activity in overweight and obese children

Abstract

Abstract This study evaluated the effect of a family-based multifactor intervention programme on physical activity among overweight or obese children. Children (n = 105, mean age 10.6 ± 1.07 years) with overweight or obesity were randomized into an intervention or control group. The intervention group participated in a 1-year programme aiming at lifestyle changes regarding food habits and physical activity. All children's physical activity was measured using SenseWear Armband at baseline and after 1 year. The children in both groups had a physical activity level (PAL) of 1.67 (0.27) at baseline. When comparing the intervention and control groups, no significant differences were found in physical activity outcome variables after 1 year of intervention. Contrarily to the hypotheses, both groups decreased their energy expenditure and time spent at >3 MET, and there was no change in steps and screen time after 1 year. Despite extensive efforts, the intervention showed no significant positive effect on overweight and obese children's PAL. Further studies are needed to obtain more knowledge on how to maintain or increase the PAL successfully among overweight and obese children.