Daily Physical Activity in Japanese Preschool Children Evaluated by Triaxial Accelerometry : The Relationship between Period of Engagement in Moderate-to-Vigorous Physical Activity and Daily Step Counts

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概要

• 論文の詳細を見る

• The purpose of the present study was to evaluate moderate-to-vigorous physical activity using triaxial accelerometry in Japanese preschool children. The relationship between daily step counts as a convenient measure of physical activity and minutes of engagement in moderate-to-vigorous physical activity was also examined. Physical activity was assessed using a triaxial accelerometer (ActivTracer, GMS) and daily steps using a uniaxial accelerometer for 6 consecutive days, including weekdays and weekend days, in 157 four- to six-year-old Japanese children attending kindergarten or nursery school. Using triaxial and uniaxial accelerometers, nonlocomotive activities and step counts for young children can be evaluated, respectively. Average daily moderate-to-vigorous physical activity (physical activity ratio ≥3) and step counts were 102(±32)min/day and 13,037(±2,846) steps/day, respectively. A strong and significant correlation was observed between minutes of moderate-to-vigorous physical activity and step counts (r=0.832, p<0.001). The daily step counts corresponding to 60min, 100min, and 120min of moderate-to-vigorous physical activity were 9,934, 12,893, and 14,373 steps/day, respectively. The correlation coefficient between minutes of higher intensity activities (physical activity ratio ≥4) and step counts was slightly lower (r=0.604, p<0.001). The daily step count corresponding to 30min of the higher intensity activities was 14,768 steps/day. These results suggest that approximately 13,000steps/day are required for preschool children to engage in more than 100min of moderate-to-vigorous physical activity.

• 日本生理人類学会の論文

著者

• TANAKA Shigeho

  Health Promotion and Exercise Program, National Institute of Health and Nutrition

• Tanaka Shigeho

  Health Promotion And Exercise Program National Inst. Of Health And Nutrition

• Tanaka Shigeho

  Project For Energy Metabolism Health Promotion And Exercise Program National Institute Of Health And

• Tanaka Chiaki

  Division of Integrated Sciences, J.F. Oberlin University

• Tanaka Chiaki

  Division Of Breast Surgical Oncology Breastopia Nanba Hospital

• Tanaka Chiaki

  Division Of Integrated Sciences J.f. Oberlin University

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