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. 2019 Jun 30;16(13):2316.
doi: 10.3390/ijerph16132316.

Differences in Cardiorespiratory Fitness between Chinese and Japanese Children and Adolescents

Xiaofang Yang  1   2 , Xiaojian Yin  3   4 , Liu Ji  1   2 , Ge Song  1   2 , Huipan Wu  1   2 , Yuqiang Li  1   2 , Guodong Wang  1   2 , Cunjian Bi  1   2 , Yi Sun  1   2 , Ming Li  1   2 , Ting Zhang  1   2 , Hiroshi Kato  5 , Akira Suzuki  6
Affiliations

Differences in Cardiorespiratory Fitness between Chinese and Japanese Children and Adolescents

Xiaofang Yang et al. Int J Environ Res Public Health. .

Abstract

Background: This study aimed to compare the difference in cardiorespiratory fitness between Chinese and Japanese children and adolescents.

Methods: Participants comprised 9025 children and adolescents aged 7-18 years from China and Japan. Cardiorespiratory fitness (CRF) was measured by performance in the 20 m shuttle run test (20mSRT) and estimated maximal oxygen consumption (VO2max). Differences in CRF between countries were evaluated by t-tests. Centile curves for the 20mSRT and VO2max values were constructed for Chinese and Japanese children and adolescents, respectively, using the Lambda Mu and Sigma (LMS) method.

Results: (1) For most of the age groups, the 20mSRT and VO2max performances among Chinese participants were lower than among Japanese participants. (2) Japanese children had the most apparent gains in P10, P50, and P90 VO2max values in primary school; however, they gradually decreased in middle school. For Chinese girls, the P10, P50, and P90 VO2max values decreased gradually with age. (3) The VO2max value among Japanese children increased; however, it decreased or remained flat among Chinese children in primary school.

Conclusions: CRF among Chinese participants was lower than among Japanese participants while the VO2max value showed different trends in primary school. Effective measures should be taken to improve CRF among children and adolescents.

Keywords: 20mSRT; China and Japan; cardiorespiratory fitness; children and adolescents; socioeconomic status.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Centile curves for 20mSRT performances of Chinese and Japanese children and adolescents aged 7–18 years.
Figure 2
Figure 2
Centile curves for VO2max values of Chinese and Japanese children and adolescents aged 7–18 years.
See this image and copyright information in PMC

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