Abstract
Introduction: Preventive and compulsory social isolation (PCSI), school closures and suspension of sports practice, have reduced physical activity and this could affect children of all ages causing changes in body mass index (BMI). The aim was to evaluate the effect of the PCSI (March-October 2020) on BMI changes, in 6 to 9 years of age children ,in a city of the province Buenos Aires.
Material and Methods: Longitudinal study of a prospective cohort. Children were assessed at the IDIP in November 2020 to evaluate anthropometric variables (weight, height, BMI) and lifestyle. A historical control group (GH) was constituted with anthropometric data of children who did not experience PCSI between 6 and 9 years of age. The protocol was approved by the Ethics Committee.
Results: 140 children were evaluated. During the PCSI they increased their weight (DzIMC/age: 0.47 vs GH 0.04; p<0.001) and reported less physical activity (52.3%), more screen time (75%) and more sleep (46.6%) than before the PCSI . Absolute weight gain was greater in overweight/obese children prior to PCSI (6.25 vs. 3.0 kg in normal weigth children; p<0.001), associated with less physical activity (2 h/day vs. 3 h/ day in normal weigth children; p<0.001), not to diet changes .
Conclusion: PCSI affected lifestyle and weight gain in children, pre-existing overweight/obesity children being more affected.
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