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- W4387054612 abstract "It’s reported that regular physical activity participants in China rose from 410 million to 440 million between 2016 and 2020. Meanwhile, extreme heat wave events in China are increasing due to global warming, which is not conducive to outdoor physical activities. The lack of relevant evidence in China precludes the understanding of the relationship between climatic conditions and safe outdoor physical activity. PURPOSE: This study aims to construct physical activity hours loss (AHL) indicator due to high temperature calculated from heat index (HI), to assess the current status of the impact of high temperature on safe physical activity in China, and also to provide sport guidelines for exertional heat illness prevention. METHODS: Gridded demographic data and hourly gridded climate data with a spatial 0.5° × 0.5° resolution from 1986 to 2021 was collected to calculate HI and AHL. Hourly HI is calculated with NWS function, and we estimate the total hours above the 33 °C heat index on each grid (recommend exertional heat illness risk level). Then, we estimate the AHL per person per day in province and city level weighed by gridded population on each year. After the estimation and expert discussion, China’s first guidelines to outdoor extreme sports and adventure activities in high temperature weather was made. RESULTS: In 2021, the Chinese people experienced 2.04 AHL (an increase of 48.2% compared to the baseline period 1986-2005), while the people in South Central region is the most affected with 3.94 AHL. Top three cities in this region has reached the AHL 4 times as many as the average level in China. The guidelines provide general sports heat risk levels based on HI, distinguishes heat risk levels for 5 common categories of outdoor extreme sports and adventure activities in China, and gives recommendations for prevention and first aid measures. This will be described specifically in the presentation. CONCLUSIONS: In the past 36 years, AHL in China has increased due to the escalating high heat stress risk, revealing a negative effect for Chinese people to do outdoor physical activities. If this trend continues, the AHL is estimated to rise in the whole nation and all age group population. Supported by National Nature Science Foundation of China (Grant No. 72104029) and Key Projects of Ministry of Education of China (Grant No. 19JZD016)." @default.
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- W4387054612 date "2023-09-01" @default.
- W4387054612 modified "2023-10-16" @default.
- W4387054612 title "Heat-related Physical Activity Loss Estimation And Sport Guidelines For Exertional Heat Illness Prevention In China" @default.
- W4387054612 doi "https://doi.org/10.1249/01.mss.0000980860.68021.7e" @default.
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