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Isotemporal substitution of accelerometer-derived sedentary behavior and physical activity on physical fitness in young children
Citation
Gu, Y., Kim, J., Ma, J., Guo, H., Sano, H., Chung, H. J., Chua, T. B. K., Chia, M. Y. H., & Kim, H. (2024). Isotemporal substitution of accelerometer-derived sedentary behavior and physical activity on physical fitness in young children. Scientific Reports, 14(1), Article 13544. https://doi.org/10.1038/s41598-024-64389-7
Author
Gu, Ying
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Kim, Junghoon
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Ma, Jiameng
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Guo, Hongzhi
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Sano, Hiroko
•
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Chua, Terence Buan Kiong
•
•
Kim, Hyunshik
Abstract
This study investigates the effects of different types of physical activity (PA) on the physical fitness (PF) of young children in Japan, with a particular focus on how substituting sedentary behavior (SB) with active behaviors influences PF. We conducted a cross-sectional analysis of 1843 participants aged 3–6 years from northeastern Japan. Using triaxial accelerometers, we quantified PA, and PF was assessed via standardized tests. The innovative application of isotemporal substitution modeling (ISM) allowed us to analyze the impact of reallocating time from SB to more active states, specifically moderate-to-vigorous physical activity (MVPA) and light physical activity (LPA). Our findings reveal a robust association between increased MVPA and enhanced PF outcomes, underscoring the health benefits of reducing SB. Notably, replacing SB with LPA also showed beneficial effects on certain PF metrics, indicating LPA's potential role in early childhood fitness. These results highlight the critical importance of promoting MVPA and minimizing sedentary periods to bolster PF in young children. The study offers vital insights for shaping public health policies and emphasizes the need to cultivate an active lifestyle from an early age to secure long-term health advantages.
Date Issued
2024
Publisher
Springer Nature
Journal
Scientific Reports
Grant ID
JP 21K11555
CER-2022
ZD202004
Funding Agency
JSPS KAKENHI
International Joint Research Project in Sendai University
Shenyang Normal University