To plug the knowledge gap, research published British Journal of Sports sought to examine the relationship between exercise intensity and reductions in mortality risk.
Researchers carried out a systematic review and meta-analysis of prospective cohort studies of physical activity and mortality to clarify if there is a greater all cause and cause-specific mortality risk associated with high levels of physical activity above the recommended amounts.
The primary outcomes measured were mortality from all causes and cardiovascular disease (CVD); secondary outcomes were mortality from cancer and coronary heart disease (CHD).
After sifting through the relevant literature, they researchers found that, compared with the recommended level of physical activity (750 MET min/week), mortality risk was lower at physical activity levels exceeding the recommendations, at least until 5000 MET min/week for all cause mortality and for CVD mortality.
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