作者: J. SCOTT DUNCAN , GRANT SCHOFIELD , ELIZABETH K. DUNCAN
DOI: 10.1249/01.MSS.0000227535.36046.97
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摘要: Purpose: The objectives of this study were to examine current levels pedometer-determined physical activity in a multiethnic sample New Zealand children and investigate associations among weekday weekend step counts, body mass index (BMI), waist circumference (WC), percentage fat (%BF). Methods: A total 1115 (536 boys, 579 girls) aged 5-12 yr wore sealed multiday memory pedometers for three weekdays two days. ethnic composition the was 49.2% European, 30.0% Polynesian, 16.5% Asian, with 4.3% from other ethnicities. BMI determined height weight, %BF measured using hand-to-foot bioelectrical impedance analysis. Participants classified as normal overweight, or obese international cutoff points (4), into central distribution groups national WC standards (28). 90th percentile each age sex subgroup used identify high fatness. Results: Mean counts 16,133 ± 3,864 (boys) 14,124 3,286 (girls) on weekdays, 12,702 5,048 11,158 4,309 weekends. Significant differences observed between weekends, boys girls, age, ethnic, socioeconomic groups. Analysis variance revealed stronger category than Conclusion: This provides evidence link daily fatness children. Our results also suggest that promotion during is key priority young Zealanders.