Objectively assessed recess physical activity in girls and boys from high and low socioeconomic backgrounds
Baquet, Georges, Ridgers, Nicola D, Blaes, Aurelie, Aucouturier, Julien, Van Praagh, Emmanuel and Serge, Berthoin 2014, Objectively assessed recess physical activity in girls and boys from high and low socioeconomic backgrounds, BMC Public Health, vol. 14, Article 192, pp. 1-6, doi: 10.1186/1471-2458-14-192.
Background The school environment influences children’s opportunities for physical activity participation. The aim of the present study was to assess objectively measured school recess physical activity in children from high and low socioeconomic backgrounds. Methods Four hundred and seven children (6–11 years old) from 4 primary schools located in high socioeconomic status (high-SES) and low socioeconomic status (low-SES) areas participated in the study. Children’s physical activity was measured using accelerometry during morning and afternoon recess during a 4-day school week. The percentage of time spent in light, moderate, vigorous, very high and in moderate- to very high-intensity physical activity were calculated using age-dependent cut-points. Sedentary time was defined as 100 counts per minute.
Results Boys were significantly (p < 0.001) more active than girls. No difference in sedentary time between socioeconomic backgrounds was observed. The low-SES group spent significantly more time in light (p < 0.001) and very high (p < 0.05) intensity physical activity compared to the high-SES group. High-SES boys and girls spent significantly more time in moderate (p < 0.001 and p < 0.05, respectively) and vigorous (p < 0.001) physical activity than low-SES boys.
Conclusions Differences were observed in recess physical activity levels according to socioeconomic background and sex. These results indicate that recess interventions should target children in low-SES schools.
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