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KMID : 0664320160220020131
Journal of the Korean Dietetic Association
2016 Volume.22 No. 2 p.131 ~ p.142
Assessment of Pedometer Counts, Physical Activity Level, Energy Expenditure, and Energy Balance of Weekdays and Weekend in Male High School Students
Shin Hyun-Mi

Jeon Ji-Hye
Kim Eun-Kyung
Abstract
The purpose of this study was to assess the physical activity and energy balance of weekdays and weekend in male high school students. Fifty healthy male high school students participated in this study. Anthropometric data were collected. Physical activity level (PAL) and energy intake for weekdays and week-end were calculated from a physical activity diary and food diary using the 24-hour recall method and inter-view. The resting metabolic rate (RMR) and estimated energy requirement (EER) were calculated from the prediction equations suggested in 2015 KDRIs. Total energy expenditure (TEE) was calculated by multiplying RMR by PAL. Mean age of subjects was 15.9¡¾0.33 years. The daily pedometer counts were significantly higher in the weekdays (12,837 steps) than in weekend (6,661 steps) (P£¼0.001). The PAL of the weekdays (1.63¡¾0.17) was significantly higher than that (1.37¡¾0.26) of the weekend (P£¼0.001). PAL was significantly correlated with pedometer counts on the weekdays (r=0.495) and weekend (r=0.686). The total energy intakes (2,847.2¡¾681.5 kcal) and TEE (3,046.3¡¾437.3 kcal) of weekdays were significantly higher than those of the weekend. The re-sults of this study would be useful to develop nutrition and exercise programs for male high school students on weekdays and weekend, respectively.
KEYWORD
male high school students, physical activity level, energy balance, weekdays and weekend
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