How Much Physical Activity Does it Take to Live Longer?
The impact of walking for longevity in actual hours gained.
This study, published in the British Journal of Sports Medicine, examines the impact of physical activity on life expectancy in the United States. It provides compelling evidence for the benefits of regular exercise on longevity.
Key Points
Aim: To estimate how low physical activity (PA) reduces life expectancy and how much life expectancy could be improved by increasing PA levels for both populations and individuals.
Methods:
Used a predictive model based on device-measured PA risk estimates
Applied a life-table model analysis using 2019 US population data based on 2017 mortality data
Included participants aged 40+ years
PA levels based on 2003-2006 National Health and Nutritional Examination Survey data.
Results:
If all Americans over 40 were as active as the top 25% of the population, they could live an extra 5.3 years on average (95% uncertainty interval: 3.7 to 6.8 years).
For individuals in the lowest activity quartile, an additional hour of walking could add approximately 6.3 hours to their life expectancy.
Practical Takeaways
Consistency is key: Regular physical activity can significantly increase your life expectancy.
Start small: Even modest increases in activity levels can yield substantial benefits, especially for those who are currently less active.
Walking for longevity: Simple activities like walking can have a profound impact on life expectancy.
Never too late: The study focused on individuals 40 and older, suggesting that it's never too late to start benefiting from increased physical activity.
Related
Key Takeaways
Physical activity can have a huge impact on life expectancy, with potential gains of over 5 years for the average American over 40.
The greatest benefits are seen in those who are currently least active, highlighting the importance of encouraging physical activity across all segments of the population.
Creating environments that promote physical activity could lead to significant improvements in population health and longevity.
The study underscores the need for increased investment in physical activity promotion as a public health strategy.
Reference
Veerman L, Tarp J, Wijaya R, et al. Physical activity and life expectancy: a life-table analysis. British Journal of Sports Medicine Published Online First: 14 November 2024. doi: 10.1136/bjsports-2024-108125
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"an additional hour of walking could add approximately 6.3 hours to their life expectancy. "
One hour daily presumably-- 6 hours= 1/1400 year to life. Not much I must say.