文献类型：期刊文献

英文题名：Association between body roundness index and cardiopulmonary fitness: a cross-sectional study of children and adolescents aged 7-18 years in Mainland China

作者：Bi, Cunjian[1];Ran, Xiaokang[1];Zhang, Feng[1,2,3];Wang, Hui[4];Zhang, Mengmeng[1];Sun, Pengwei[5];Wang, Mingrui[6,7]

机构：[1]Chizhou Univ, Sch Phys Educ, Chizhou 247000, Peoples R China;[2]East China Univ Sci & Technol, ECUST Chengxin Res Inst Hlth Sci & Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Sports Sci & Engn, Shanghai 200237, Peoples R China;[4]Hefei Normal Univ, Sch Life Sci, Hefei 230601, Anhui, Peoples R China;[5]Xinjiang Normal Univ, Sch Phys Educ, Urumqi 830054, Xinjiang, Peoples R China;[6]Beijing Sport Univ, Dept Exercise Physiol, Beijing, Peoples R China;[7]Beijing Sport Univ, Lab Sports Stress & Adaptat, Gen Adm Sport China, Beijing, Peoples R China

年份：2026

卷号：185

期号：6

外文期刊名：EUROPEAN JOURNAL OF PEDIATRICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001762691200001)】；

基金：General Project of Cultivating Excellent Young Teachers in Anhui Universities (YQYB2023058); The Scientific Research Startup Fund Project for High-level Talents of Chizhou University (CZ2024YJRC47); This study was funded by the 2024 Anhui Provincial Research Preparation Program Key Project Grant(2024AH052897); Project Grant for Innovation and Entrepreneurship Training Programme for University Students (202411306043).

语种：英文

外文关键词：Obesity; Body composition; Body roundness index; Cardiorespiratory fitness; Children and adolescents

摘要：Cardiorespiratory fitness (CRF) is closely associated with multiple health indicators. The Body Round Index (BRI) is a new indicator of obesity, yet few studies have examined its association with CRF. The purpose of this study is to investigate whether CRF in adolescents is associated with BRI. From September to December 2023, a cross-sectional assessment of height, weight, waist circumference, and 20 m shuttle run test(20-m SRT) performance was conducted among 42,341 [boys, 21849 (51.6%)] children and adolescents aged 7-18 years across five regions in mainland China using stratified cluster sampling. The association between BRI and cardiorespiratory fitness was analyzed using one-way analysis of variance (ANOVA), LSD comparisons, and curve regression analysis. 20-m SRT among children and adolescents aged 7-18 years in mainland China was (39.84 +/- 18.29) laps, with a BRI of (2.11 +/- 0.98). As BRI progressively increased, 20-m SRT exhibited a trend of initial increase followed by a decline. The effect of BRI on 20-m SRT was more pronounced in boys than in girls. Overall, 20-m SRT peaked at BRI values of 0.635, 1.435, 2.315, and 2.155 for children and adolescents aged 7-9 years, 10-12 years, 13-15 years, and 16-18 years, respectively, reaching values of 18.747 laps, 26.899 laps, 37.343 laps, and 40.565 laps, respectively. Conclusions: Children and adolescents aged 7-18 in mainland China exhibit an inverted U-shaped relationship between BRI and 20-m SRT, with both boys and girls showing the same trend.