Key Takeaway
In 140,000 adults across 17 countries, each 5kg decrease in grip strength was associated with 16% higher all-cause mortality and 17% higher cardiovascular mortality - a stronger predictor than systolic blood pressure.
Summary
The PURE study followed 139,691 adults aged 35-70 years across 17 countries for a median of 4 years, examining the relationship between grip strength and health outcomes.
Grip strength was inversely associated with all-cause mortality, cardiovascular mortality, non-cardiovascular mortality, myocardial infarction, and stroke. The association was stronger than that of systolic blood pressure, making grip strength one of the most powerful predictors of mortality risk.
Methods
- Prospective cohort study
- 139,691 participants from 17 countries
- Grip strength measured by dynamometer
- Median 4-year follow-up
- Adjusted for confounders
Key Results
- 16% increased mortality per 5kg grip decrease (HR 1.16)
- 17% increased cardiovascular mortality per 5kg decrease
- Stronger predictor than systolic blood pressure
- Consistent across countries and income levels
- Association independent of physical activity
Limitations
- Observational study (causation not proven)
- Relatively short follow-up
- Grip may be marker rather than cause
- Single grip measurement at baseline