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  • Title: The effects of increasing outdoor play time on physical activity in Latino preschool children.
    Author: Alhassan S, Sirard JR, Robinson TN.
    Journal: Int J Pediatr Obes; 2007; 2(3):153-8. PubMed ID: 17852547.
    Abstract:
    OBJECTIVE: A randomized controlled pilot study to test the hypothesis that increasing preschool children's outdoor free play time increases their daily physical activity levels. METHODS: Physical activity was assessed by accelerometers for four consecutive school days in thirty-two Latino children (3.6+/-0.5 years) attending a preschool for low-income families. After two days of baseline physical activity assessment, participants were randomly assigned to an intervention (RECESS; n =17) or control (CON; n =15) group. The RECESS group received two additional 30-minute periods of outdoor free play time per day for two days. The CON group followed their normal classroom schedule. Between group differences in physical activity variables were tested with a Wilcoxon rank-sum test. RESULTS: There were no statistically significant differences between groups in changes from baseline in average total daily (CON, 48.2+/-114.5; RECESS, 58.2+/-74.6) and during school day (CON, 64.6+/-181.9; RECESS, 59.7+/-79.1) counts per minute, or total daily (CON, 0.4+/-1.3; RECESS, 0.3+/-0.8) and during school day (CON, 0.6+/-2.1; RECESS, 0.5+/-0.8) percent of time spent in moderate to vigorous physical activity. CONCLUSIONS: Substantially increasing preschoolers' outdoor free play time did not increase their physical activity levels.
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