Across two accelerometry cohorts of adults with both diabetes and hypertension, 4,294 in UK Biobank and 530 in NHANES, higher peak 30-minute activity intensity was associated with lower all-cause mortality (hazard ratio 0.43 and 0.57 respectively), while total daily activity volume was associated with mortality in UK Biobank (HR 0.66) but attenuated to non-significance in NHANES (HR 0.95).
What it shows: Observational analysis of two population cohorts with wrist accelerometry, 4,294 and 530 adults who had both diabetes and hypertension, with 731 and 123 deaths, so these are associations, not proof that harder activity extends life; reverse causation from existing illness and residual confounding cannot be excluded.Study · Acta Diabetol