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. 2022 Jan 3;8:770349. doi: 10.3389/fnut.2021.770349

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Copyright © 2022 Ma, Dang, Liu, Zhong, Yan, Zhang, Dong, Song, Ma and Lau.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Sex- and age-specific percentile curves (P₂₀, P₄₀, P₆₀, and P₈₀) for sit-and-reach (SR) (cm) for the Chinese children and adolescents aged 7–18 years based on total population and normal weight population. (A) Boys-Total population, (B) Boys-Normal weight population, (C) Girls-Total population, and (D) Girls-Normal weight population.