Higher Levels of Physical Activity May Reduce Risk of Premature Death
Previous studies have linked low levels of physical activity with an increased risk of coronary heart disease, type 2 diabetes, obesity, and early mortality. A new study has found that higher levels of physical activity and less sedentary time are associated with a significantly reduced risk of premature mortality.
For their study, researchers looked at eight studies that assessed physical activity and sedentary times using acclerometry, and recorded number of deaths from all causes. The studies included 36,383 adults with an average age of 62. Participants were followed for an average of 5.8 years. Levels of physical activity were categorized as light, moderate, or vigorous.
The risk of death was found to be five times higher for particiapnts who were inactive compared to those who were most active. Higher levels of physical activity at any intensity and less sedentary time were significantly associated with a reduced risk of premature mortality. A significantly higher risk of premature mortality was seen in participants with 9.5 hours or more of sedentary time daily.
The study was conducted by researchers from the Norwegian School of Sports Sciences. It was published on August 22, 2019 in The BMJ.