Adherence
Higher levels of leisure-time physical activity (up to 22.5+ MET-h/wk, equivalent to 450+ minutes of brisk walking per week) are associated with greater gains in life expectancy (4.5 years) compared to no activity, with diminishing returns at the highest levels.
If you are already active, increasing your weekly brisk walking time to 450 minutes (7.5 hours) can add up to 4.5 years to your life expectancy compared to being inactive. While the biggest gains come from starting to move, continuing to increase your activity volume provides additional longevity benefits, even if the rate of gain slows at very high levels.
Higher levels of physical activity were associated with greater gains in life expectancy, with a gain of 4.5 (95% CI: 4.3–4.7) y at the highest level (22.5+ MET-h/wk, equivalent to brisk walking for 450+ min/wk).
Why this rating
Large pooled cohort analysis with robust statistical modeling (restricted cubic splines) confirming a curvilinear dose-response relationship.
Source
Leisure Time Physical Activity of Moderate to Vigorous Intensity and Mortality: A Large Pooled Cohort Analysis
Steven C. Moore et al. · PLoS Medicine · 2012
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