Training & movement
ADaily steps and all-cause mortality: a meta-analysis of 15 international cohorts
Paluch AE, Bajpai S, Bassett DR, Carnethon MR, Ekelund U, Evenson KR, Galuska DA, Jefferis BJ, Kraus WE, Lee I-M, et al. (Steps for Health Collaborative) · 2022 · Lancet Public Health
REZA evidence rating A: High confidence
Methodology
Prospective study
Population
47,471 adults from 15 cohorts (7 published, 8 unpublished); 3013 deaths; median follow-up 7.1 years
Intervention
Exposure: steps per day (quartile medians 3553, 5801, 7842, 10,901) and stepping rate
Findings
More daily steps are associated with progressively lower mortality risk, up to roughly 6,000-8,000 steps/day in adults 60 and older and 8,000-10,000 steps/day in adults under 60. A faster stepping cadence, independent of step volume, was also associated with lower mortality.
Outcome measures
All-cause mortality
Limitations
Observational (no causal inference); baseline single accelerometer measurement; reverse causation possible in older/frailer participants; heterogeneous devices and step algorithms.
Original source
DOI: 10.1016/S2468-2667(21)00302-900302-9) · PMID: 35247352
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