| Autor: |
Yamada Y; Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan.; National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan., Sagayama H; Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan., Yasukata J; Department of Sports and Health Sciences, Faculty of Human Sciences, University of East Asia, Yamaguchi 751-8503, Japan., Uchizawa A; Graduate School of Comprehensive Human Science, University of Tsukuba, Tsukuba 305-8574, Japan., Itoi A; National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan.; Faculty of Health and Welfare, Kobe Women's University, Hyogo 650-0046, Japan., Yoshida T; Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan.; National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan., Watanabe D; Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan.; National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan., Hashii-Arishima Y; National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan., Mitsuishi H; Faculty of Health and Medical Sciences, Kyoto University of Advanced Science, Kyoto 621-8555, Japan., Nishimura M; Faculty of Education, Bukkyo University, Kyoto 603-8301, Japan., Kimura M; Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan., Aoki Y; Institute for Active Health, Kyoto University of Advanced Science, Kyoto 621-8555, Japan.; Faculty of Health and Welfare, Kobe Women's University, Hyogo 650-0046, Japan. |
| Abstrakt: |
Water and energy are essential for the human body. The doubly labeled water (DLW) method measures water turnover (WT) and total energy expenditure (TEE), which serves as a benchmark for the adequate intake (AI) of water and estimated energy requirements (EER). The objective of the current study was to examine the association of WT and TEE with physical activity and body composition in Japanese preschool children. We included 41 preschool children (22 girls, 19 boys) aged 3-6 in this study. WT, TEE, and fat-free mass (FFM) were obtained using DLW. Physical activity was measured using a triaxial accelerometer and categorized as light (LPA; 1.5-2.9 Metabolic equivalents, METs) and of moderate-to-vigorous intensity (MVPA; ≥3.0 METs). Exercise duration (Ex) was defined as ≥4.0 METs of physical activity. WT and TEE moderately positively correlated with Ex, but not with LPA. WT moderately positively correlated with BW and FFM while TEE strongly. We established predictive equations for WT and TEE using body weight (BW), FFM, step count, and Ex to guide the AI of water and EER in Japanese preschool children. We found that FFM and step count are the determinants of TEE, and that BW and Ex are the determinants of WT in preschool children. |
