Imbalance between muscle strength development and weight gain in children and young adults in China: serial cross-sectional evidence from 1.33 million students from five successive national surveys between 2000 and 2019

作者：Xijie Wang, Huan Wang, Xin Yuan, Shan Cai, Yangmu Huang, Yi Song, Zhiyong Zou, Randall S. Stafford · 发表于：The Lancet Regional Health - Western Pacific · 年份：2025 · DOI：10.1016/j.lanwpc.2025.101640 · 被引用次数：3 · 研究领域：Obesity, Physical Activity, Diet、Children's Physical and Motor Development、Body Composition Measurement Techniques

Background: Over the past decades, Chinese school-aged children and adolescents have experienced a rapid increase in overweight and obesity, but corresponding changes in muscle strength remain unclear. We aimed to elucidate trends in muscle strength development at both national and subnational level, and to investigate whether it has increased proportionally with weight gain. Methods: Muscle strength (handgrip strength [kg] for upper body and standing broad jump [cm] for lower body) and weight measurements for 1.33 million children and adolescents aged 7 to 22 were obtained from five waves of the Chinese National Surveys on Students Constitution and Health (2000, 2005, 2010, 2014, and 2019). Trends in muscle strength indicators were investigated using t-test, with post-hoc pairwise comparisons performed using Bonferroni correction. Associations between muscle indicators with weight change were assessed with the Pearson correlation analysis. Findings: Despite some increase during the first waves of survey, both handgrip strength and standing broad jump declined significantly between 2010 and 2019. The median handgrip strength decreased from 43.9 kg (95% CI 43.7 to 44.1) in 2010 to 42.5 kg (42.3 to 42.8) in 2019 among young males, and from 26.6 kg (26.5 to 26.7) in 2010 and to 26.0 kg (25.8 to 26.1) in 2019 among young females. From 2010 to 2019, median standing broad jump decreased from 234.3 cm (233.8-234.8) to 219.4 cm (218.8-220.1) among males, and from 172.8 cm (172.3-173....