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Open AccessArticle

Secular Trend in the Physical Fitness of Xinjiang Children and Adolescents between 1985 and 2014

1
School of Physical Education and Health, East China Normal University, Shanghai 200241, China
2
Institute of Physical Education, Xinjiang Normal University, Wulumuqi 830054, China
3
Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing 100191, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(7), 2195; https://doi.org/10.3390/ijerph17072195 (registering DOI)
Received: 20 February 2020 / Revised: 23 March 2020 / Accepted: 24 March 2020 / Published: 25 March 2020
We assessed trends in physical fitness by age group and nutrition status among children and adolescents in Xinjiang during 1985–2014. The data of 49,357 participants aged 7–18 were extracted in 1985, 1995, 2005, and 2014. Growth and nutritional status were defined using World Health Organization definitions. A physical fitness indicator (PFI) was calculated as the sum of six components measured in every survey. The relationship between body mass index (BMI) and PFI was investigated using nonlinear regression. Taking 1985 as a reference, PFI increased to 2 in 1995 and then fell sharply to −2.8 in 2005 and −3.8 in 2014. The prevalence of normal weight increased from 87.5% in 1985 to 89.4% in 1995 and then decreased to 75.2%, consistent with the change in PFI. The relationship between BMI and PFI showed an inverted U-shaped curve. The largest increment occurred in boys aged 13–15 and girls aged 16–18 during 1985–1995; the largest decline occurred in boys and girls aged 10–12 during 1995–2005. Our research provides a reference for local governments providing nutrition subsidies and projects in southern Xinjiang, indicating that greater attention is needed for children aged 7–12.
Keywords: physical fitness; nutrition status; Xinjiang; children and adolescents; physical fitness indicator; body mass index; growth status physical fitness; nutrition status; Xinjiang; children and adolescents; physical fitness indicator; body mass index; growth status
MDPI and ACS Style

Bi, C.; Zhang, F.; Gu, Y.; Song, Y.; Cai, X. Secular Trend in the Physical Fitness of Xinjiang Children and Adolescents between 1985 and 2014. Int. J. Environ. Res. Public Health 2020, 17, 2195.

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