期刊
SCANDINAVIAN JOURNAL OF PUBLIC HEALTH
卷 46, 期 -, 页码 38-47出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1403494818771207
关键词
Accelerometry; child; observational study; motor activity; MVPA; schools
Aims: The objective was to investigate moderate-to-vigorous physical activity levels (MVPA) of primary school children at baseline of the Health Oriented Pedagogical Project (HOPP), Norway. Methods: Data on 2123 children aged 6-12 years were included for analysis (75% participation rate). Average minutes per day in MVPA was objectively measured using accelerometry based on seven-day averages. The sample was analysed for age-, sex-, socioeconomic-, and season-related patterns. A linear regression investigated the moderating effect of these factors as well as body mass index and waist circumference. Results: Some 86.5% of the sample had at least 60 min/day MVPA, averaging 90.7 min/day. The main differences in daily averages were between age groups 61/2-9 and 10-12 (p < .05). Boys (95.8 min/day, 95% CI: 94.1-97.5) were more active than girls (85.6 min/day, 95% CI: 83.9-87.2) in all age groups (p < .0001). MVPA was lower by 3.5 min (p < .0001) per additional year of age in the linear regression (R-2 = 0.176) and was reduced by 20 min less per day in MVPA in the winter months compared with the summer months (p < .0001). Conclusions: Physical activity levels are already in decline from 6-7 years old and are likely to continue to decline into adolescence. Interventions must therefore focus on primary school children.
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