Inactivity linked to falls and dementia in non-working adults
Inactive non-working adults had higher risks than active workers, with hazard ratios (measures of relative risk over time) ranging from 1.45 to 2.38.
Our read
Populations- Studied:
- Cohort study of 288,287 people (13.4 years)
- In the record:
- The 290th paper on physical inactivity with results in people; 629 on record in all. Its result on dementia agrees with all 18 other findings on record.
Editor of record: Boris Djordjevic · AgingResearch.News
Among 288,287 UK Biobank adults aged 40–69, 53.6% women, a prospective observational study examined links between activity patterns, injurious falls and dementia. None had diagnosed dementia or a recorded fall at baseline. Researchers grouped participants using self-reported physical activity, social connections, sleep, work and commuting. They tracked dementia and first hospital-recorded injurious falls for an average of 13.4 years.
Overall, 6.85% experienced an injurious fall and 1.53% developed dementia. Inactive non-working adults had the highest risks. Among non-working adults, inactive profiles were also linked to developing one condition after the other. Insufficient physical activity was associated with falls after dementia; social isolation, particularly living alone and frequent loneliness, was linked to dementia after falls. The main analysis found no risk differences between active and inactive workers.
Why it matters
Falls and dementia in later life may share prevention targets, the authors suggest, highlighting physical activity and social connections.
Caveats
Poorer health may have contributed both to inactivity or not working and to later falls or dementia, despite statistical adjustments. Participants were 40–69 at enrollment without diagnosed dementia or recorded falls, activity was self-reported, and only hospital-recorded injurious falls counted.
From the paper
- Follow-up
Over an average follow-up of 13.4 years, among 288,287 participants, 19,753 (6.85%) experienced a fall injury, 4,407 (1.53%) developed dementia, and 19,723 (6.84%) died without either event.
Results, Dynamic transitions between dementia and fall in relation to activity profiles
- Result
In addition, compared with the active-non-working group, the inactive-non-working group had a higher risk of mortality both from death without experiencing either fall or dementia (HR: 1.39; 95% CI: 1.34—1.44) and from transitions from fall to death (HR: 1.30; 95% CI: 1.20—1.41).
Results, Dynamic transitions between dementia and fall in relation to activity profiles
Quoted word for word from the full text on PubMed Central.
The paper
Lund University; University of Wisconsin–Madison
Alzheimer's Research & Therapy, Jul 10, 2026, Open access
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