The authors note that the lower levels of insufficient physical activity in Bangladesh and India (where 63% and 72% of boys were insufficiently active in 2016, respectively) may be explained by the strong focus on national sports like cricket.
However, the US rates (64%) may be driven by good physical education in schools, pervasive media coverage of sports, and good availability of sports clubs (such as ice hockey, American football, basketball, or baseball).
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就女孩而言，孟加拉国和印度的身体活动不足程度最低，这可能是社会因素造成的，例如女孩承担更多家务。
For girls, the lowest levels of insufficient activity were seen in Bangladesh and India, and are potentially explained by societal factors, such as increased domestic chores in the home for girls.
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青少年活动不足是一个主要问题
Insufficient activity among adolescents a major concern
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研究的共同作者、世卫组织的Leanne Riley女士说：“女孩不如男孩活跃的趋势令人担忧。
“The trend of girls being less active than boys is concerning,” said study co-author Dr Leanne Riley, WHO.
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需要有更多的机会满足女孩的需要和兴趣，以吸引和维持她们在青春期和成年期参加身体活动。”
“More opportunities to meet the needs and interests of girls are needed to attract and sustain their participation in physical activity through adolescence and into adulthood.”
To increase physical activity for young people, governments need to identify and address the many causes and inequities – social, economic, cultural, technological, and environmental – that can perpetuate the differences between boys and girls, the authors said.
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Bull 博士说：“各国必须制定或更新其政策并分配必要资源，以增加身体活动。
“Countries must develop or update their policies and allocate the necessary resources to increase physical activity,” says Dr Bull.
“Policies should increase all forms of physical activity, including through physical education that develops physical literacy, more sports, active play and recreation opportunities – as well as providing safe environments so young people can walk and cycle independently.