Population-based trends and distributional characteristics in sit-ups performance among school-aged girls in urban China over three decades
Abstract This paper aims to assess population-based trends and distributional characteristics in the sit-ups performance, body height, body mass and body mass index (BMI) among school-aged girls in urban China from 1985 to 2019. Height, mass, BMI and sit-ups performance data for Han Chinese urban gi...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-05-01
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| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-01192-y |
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| Summary: | Abstract This paper aims to assess population-based trends and distributional characteristics in the sit-ups performance, body height, body mass and body mass index (BMI) among school-aged girls in urban China from 1985 to 2019. Height, mass, BMI and sit-ups performance data for Han Chinese urban girls aged 7–18 years were obtained from the Chinese National Surveillance on Students’ Constitution and Health surveys from 1985 to 2019. Population-based trends were estimated by a post-stratification population weighting procedure. There was a moderate improvement in sit-ups performance from 1985 to 2019, increasing by 25.7% or 0.69 effect size (ES). Girls aged 10–12 years experienced the smallest improvement (0.46 ES) and girls aged 16–18 years experienced the largest improvement (0.88 ES). Improvements in sit-ups performance were the major trend across periods, but there was a negligible improvement in the 1990s (0.04 ES) and a small decrease in the 2000s (-0.36 ES), while height, mass and BMI (from 2000 to 2019) continued to increase from 1985 to 2019. The distribution of the change in sit-ups performance was uneven, the improvements were somewhat greater at both ends of the distribution.The government should implement differentiated health promotion programs, especially for those with greater health risks. |
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| ISSN: | 2045-2322 |