|Introduction of Physical Activity Guidelines for Americans (PAG), 2nd edition|
|The 2018 Physical Activity Guidelines Advisory Committee conducted a systematic review of evidence supporting physical activity and health, according to which the Department of Health and Human Services (HHS) of the United States subsequently published the 2018 Physical Activity Guidelines for Americans (PAG, here).
The PAG recommends:
1. Preschool-aged children (3 through 5 years) should be physically active throughout the day.
2. Children and adolescents aged 6 through 17 years should do 60 minutes or more of moderate-to-vigorous physical activity daily.
3. Adults should do at least 150 minutes to 300 minutes a week of moderate-intensity, or 75 minutes to 150 minutes a week of vigorous-intensity aerobic physical activity, or an equivalent combination of moderate- and vigorous-intensity aerobic activity. They should also do muscle-strengthening activities on 2 or more days a week.
4. Older adults should do multicomponent physical activity that includes balance training as well as aerobic and muscle-strengthening activities.
5. Pregnant and postpartum women should do at least 150 minutes of moderate-intensity aerobic activity a week.
6. Adults with chronic conditions or disabilities, who are able, should follow the key guidelines for adults and do both aerobic and muscle-strengthening activities.
7. It has been emphasized that moving more and sitting less will benefit nearly everyone. Individuals performing the least physical activity benefit most by even modest increases in moderate-to-vigorous physical activity.
8. Additional benefits occur with more physical activity.
Physical activity reduces the risk of many common diseases, including obesity, type 2 diabetes, cardiovascular disease, dementia, and cancers (bladder, breast, colon, endometrium, esophagus, kidney, lung, and stomach). Physical activity also improves sleep and physical function, prevents injury from falls, and other benefits. Individuals who meet the PAG recommendations could reduce the risk of premature death by 33% compared to those who are sedentary.