In February, the 2018 Physical Activity Guidelines Advisory Committee submitted its Scientific Report to the US Secretary of Health and Human Services. This report summarizes the scientific evidence on physical activity and health and was used to develop the second edition of the Physical Activity Guidelines for Americans. The following table from Part D Integrating the Evidence highlights both established and new findings.
Physical Activity-Related Health Benefits for the General Population and Selected Populations
3 to <6 years |
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6 to 17 years |
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All-cause mortality |
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Cardiometabolic conditions |
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Cancer |
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Brain health |
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Weight status |
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Falls |
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Physical function |
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Breast cancer |
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Colorectal cancer |
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Prostate cancer |
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Osteoarthritis |
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Hypertension |
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Type 2 diabetes |
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Multiple sclerosis |
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Dementia |
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Some conditions with impaired executive function |
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Note: Benefits in bold font are those added in 2018; benefits in normal font are those noted in the 2008 Scientific Report. Only outcomes with strong or moderate evidence of effect are included in the table.
Despite the health benefits of regular physical activity and the consequences of a sedentary lifestyle:
- Globally, 23 percent of adults 18+ and 80 percent of adolescents are insufficiently active.
- According to the US 2016 National Health Interview Survey, 48 percent of adults are NOT meeting the Physical Activity Guidelines for aerobic activity, and 78 percent of adults are NOT meeting the guidelines for both aerobic and strength training.
- U.S. adolescents and adults spend almost eight hours a day in sedentary behaviors.
- Approximately 36 percent of adults engage in NO leisure-time physical activity at all.