Any resistance training vs none associated with 15% lower all-cause mortality (RR 0.85, 95% CI 0.77–0.93); dose-response peaked at ~60 min/week (27% reduction)
Causal status: Observational; supported by RCT evidence on intermediate outcomes
Reliability / bias notes: Only 10 cohort studies pooled; self-reported exposure; nonlinear dose-response not fully resolved
Shailendra et al · Am J Prev Med · 2022 · PMID 35599175