Physical activity, not weight loss reduces mortality

Data from long-term study suggests that maintaining and improving physical fitness is associated with lower risk of death, including cardiovascular death, changes in body mass have a similar effect.

Researchers from the University of South Carolina also found that men who lost part of their physical capacity, a significant increased risk of cardiovascular death, regardless of changes in body mass index.

To date, most attention is paid to weight loss, but this study shows that the improvement of physical activity at least has the same effect as a weakening of reducing premature mortality, the authors note. That's why, part of that attention should be redirected to the strategies for maintaining and improving physical fitness.

In this study data were used Aerobics Center Longitudinal Study, both were included in the analysis of 14 435 men followed for an average of 11.4 years.

Persons with physical activity were stable between resp. 30% and 27% lower total and cardiovascular mortality compared to participants, reduced physical activity. Improved form was associated resp. 29% and 42% lower risk. Each 1-MET (metabolic equivalent) improvement in physical activity was associated with a 15% reduction in risk of death overall and 19% reduction in cardiovascular mortality.

Body mass index on the other hand was not significantly associated with mortality. However, men i gain weight, had 39 percent increased risk of cardiovascular death compared weakened during follow-up. Each unit of BMI was associated with borderline increase these risks.

The authors noted that approximately 90% of the men are overweight or obese, so it is unclear whether similar results would occur in patients with lower body mass index. In the past, obesity could be a more important factor in increasing mortality than physical activity.

 
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