Physical fitness reference standards for Chinese children and adolescents

Abstract To develop age- and sex-specific physical fitness reference standards and express the age- and sex-related differences using standardized effect sizes for Chinese children and adolescents. A total of 85,535 children and adolescents (48.7% girls) aged 7–18 years were recruited from six geogr...

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Autores principales:	Feng Zhang, Cunjian Bi, Xiaojian Yin, Qi Chen, Yuqiang Li, Yuan Liu, Ting Zhang, Ming Li, Yi Sun, Xiaofang Yang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5a5f32a4a6fd465688143d7352ad0ebe
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spelling	oai:doaj.org-article:5a5f32a4a6fd465688143d7352ad0ebe2021-12-02T15:52:58ZPhysical fitness reference standards for Chinese children and adolescents10.1038/s41598-021-84634-72045-2322https://doaj.org/article/5a5f32a4a6fd465688143d7352ad0ebe2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84634-7https://doaj.org/toc/2045-2322Abstract To develop age- and sex-specific physical fitness reference standards and express the age- and sex-related differences using standardized effect sizes for Chinese children and adolescents. A total of 85,535 children and adolescents (48.7% girls) aged 7–18 years were recruited from six geographical divisions of China using a stratified randomized cluster sampling method. Seven physical fitness items including grip strength, standing long jump, 30-s sit-ups, sit and reach, 50-m dash, 20-s repeated straddling, and 20-m SRT were measured following a standardized procedure. Percentile curves for each physical fitness test were calculated using the LMS. Age- and sex-related differences were expressed as standardized effect sizes. We observed that the performance improved with age along with the analyzed percentiles in all tests. Boys had higher values compared to girls in all the physical fitness items except for sit and reach test, where girls showed better performance in all analyzed percentiles. Also, the sex differences increased with ages except sit and reach. There is a need for a differentiated approach in the physical education class in terms of adjustment of physical activity based on sex, level of fitness abilities in China.Feng ZhangCunjian BiXiaojian YinQi ChenYuqiang LiYuan LiuTing ZhangMing LiYi SunXiaofang YangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Feng Zhang Cunjian Bi Xiaojian Yin Qi Chen Yuqiang Li Yuan Liu Ting Zhang Ming Li Yi Sun Xiaofang Yang Physical fitness reference standards for Chinese children and adolescents
description	Abstract To develop age- and sex-specific physical fitness reference standards and express the age- and sex-related differences using standardized effect sizes for Chinese children and adolescents. A total of 85,535 children and adolescents (48.7% girls) aged 7–18 years were recruited from six geographical divisions of China using a stratified randomized cluster sampling method. Seven physical fitness items including grip strength, standing long jump, 30-s sit-ups, sit and reach, 50-m dash, 20-s repeated straddling, and 20-m SRT were measured following a standardized procedure. Percentile curves for each physical fitness test were calculated using the LMS. Age- and sex-related differences were expressed as standardized effect sizes. We observed that the performance improved with age along with the analyzed percentiles in all tests. Boys had higher values compared to girls in all the physical fitness items except for sit and reach test, where girls showed better performance in all analyzed percentiles. Also, the sex differences increased with ages except sit and reach. There is a need for a differentiated approach in the physical education class in terms of adjustment of physical activity based on sex, level of fitness abilities in China.
format	article
author	Feng Zhang Cunjian Bi Xiaojian Yin Qi Chen Yuqiang Li Yuan Liu Ting Zhang Ming Li Yi Sun Xiaofang Yang
author_facet	Feng Zhang Cunjian Bi Xiaojian Yin Qi Chen Yuqiang Li Yuan Liu Ting Zhang Ming Li Yi Sun Xiaofang Yang
author_sort	Feng Zhang
title	Physical fitness reference standards for Chinese children and adolescents
title_short	Physical fitness reference standards for Chinese children and adolescents
title_full	Physical fitness reference standards for Chinese children and adolescents
title_fullStr	Physical fitness reference standards for Chinese children and adolescents
title_full_unstemmed	Physical fitness reference standards for Chinese children and adolescents
title_sort	physical fitness reference standards for chinese children and adolescents
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5a5f32a4a6fd465688143d7352ad0ebe
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Physical fitness reference standards for Chinese children and adolescents

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