The WHO currently recommends that adults aged 18 to 64 years partake in at least 150 minutes of moderate-intensity aerobic physical activity per week; however, nearly a quarter (23%) of the world’s population do not meet such guidelines, according to the researchers.
Between Jan. 1, 2003, and Dec. 31, 2010, Lear and colleagues performed a prospective cohort study to determine the association between different amounts and types of physical activity and mortality and CVD in countries at different economic levels. The researchers enrolled 130,843 participants without preexisting CVD aged between 35 and 70 years from 17 countries. Countries were categorized as high-income (Canada, Sweden and United Arab Emirates), upper-middle income (Argentina, Brazil, Chile, Poland, Turkey, Malaysia and South Africa), lower-middle income (China, Colombia and Iran) and low-income (Bangladesh, India, Pakistan and Zimbabwe).
The researchers documented mortality and major CVD events, including CVD mortality, stroke, myocardial infarction or heart failure, during a mean of 6 to 9 years of follow-up. The analysis was adjusted from sociodemographic factors.
Across all regions, the most common form of physical activity was through active transportation, occupation or domestic duties. Leisure time physical activity was common in high-income countries, but not other regions.
Results indicated that moderate and high physical activity were associated with a 28% reduction in the risk for death from any cause and a 20% reduction in the risk for heart disease compared with low physical activity.
Fontes: Lancet 2017
1.Physical activity lowers mortality and heart disease risks
Regular walking, even when it's below the minimum recommended levels for physical fitness, is associated with lower all-cause mortality compared with inactivity, according to new data from a large, ongoing US cancer prevention cohort study among older Americans.
ResponderExcluirWalking is "simple, free and does not require any training".
Their new study was published online October 19 in the American Journal of Preventive Medicine.
Various US guidelines call for adults to perform either more than 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity physical activity a week to pursue "optimal health." These are recommended minimum amounts.
But the new study showed that 120 minutes or less of weekly moderate-intensity walking is also a boon to one's life span.
In other words, you can fall short of the minimum goal for adults and still benefit.
Walking is the most common type of physical activity performed by Americans and has been linked to lower risk for heart disease, diabetes, and breast and colon cancers. But the new study is the first to examine walking only (separated out from other activities) in relation to mortality in older men and women.