Prevention & lipidsCohort study
Intensity or volume: the role of physical activity in longevity
- Prospective cohort study
- weighted Cox proportional hazard models
Authors' conclusion
Intensity is a main driver of reduced mortality risk suggesting that the intensity of PA rather than the quantity matters for longevity.
Study context
- Population
- US adults (age ≥20) with valid accelerometer, covariate and mortality data, National Health and Nutrition Examination Survey (NHANES) 2011–201452.0% women
- Participants
- 7,518 adults
- Exposure
- Physical activity (PA) volume, intensity, duration and fragmentation
- Outcome
- All-cause and CVD mortality
Main finding
As reported in the abstract
All-cause mortality · 81-month follow-up
Average acceleration (AvAcc) (volume): risk reduction from 25th to 50th percentile
−14.4% (95% CI, −8.3 to −20.1%)
Intensity gradient (IG) (intensity): risk reduction from 25th to 50th percentile
−37.1% (95% CI, −30.0 to −43.4%)
Observational data: associations, not effects.
Further findings
Cardiovascular disease (CVD) mortality (n = 7016) · 82-month follow-up
- IG (intensity) only: risk reduction from 25th to 50th percentile
- −41.0% (95% CI, −26.7 to −52.4%)
Original publication
Intensity or volume: the role of physical activity in longevity. Eur J Prev Cardiol. Published 14 September 2024. doi:10.1093/eurjpc/zwae295
Summarised from the published abstract; every number is checked against it