Regular exercise and later ADL/IADL limitation or death in Chinese older adults with multimorbidity
In this observational CLHLS study, regular exercise was associated with a modestly lower risk of new ADL/IADL limitation or death by the next survey wave among functionally independent older Chinese adults with multimorbidity; causality remains limited. [1]
Automatic summary · not editorially reviewed
The key findings
The study asked whether regular exercise, social participation, good sleep and a cumulative score were associated with later ADL/IADL limitation or death among Chinese older adults with multimorbidity. [1]
Among 1,241 person-intervals from 1,045 respondents, regular exercise was associated with lower risk of the composite outcome of new ADL/IADL limitation or death (risk ratio 0.87, 95% CI 0.78–0.96). [1]
The exercise association remained after health-reserve adjustment, inverse-probability weighting and exclusion of mobility items, while social participation, sleep and the resource score were not independently associated; causal interpretation remains limited. [1]
The source at a glance
- Study type / format
- Observational longitudinal cohort study (abstract)
- Population / context
- Chinese adults aged 65 or older with at least two chronic conditions and no ADL/IADL limitations at interval start, in the 2008–2018 Chinese Longitudinal Healthy Longevity Survey.
- Summary based on
- Study abstract
- Publication status
- Preprint · peer-review status not confirmed
- Original publication
- October 5, 2026
Multimorbidity, function and the exercise question
The authors note that multimorbidity is linked to disability and mortality in later life, but functional trajectories vary among older adults with similar disease burden. They asked whether regular exercise, social participation, good sleep and a cumulative score were associated with later limitation in activities of daily living (ADL) or instrumental activities of daily living (IADL), or with death, among Chinese older adults with multimorbidity.
Supporting source [1]
Eligibility, outcome and exercise association in CLHLS
Using the 2008–2018 Chinese Longitudinal Healthy Longevity Survey, the researchers built rolling person-period observations for three intervals. Eligible respondents were aged 65 or older at interval start, had at least two chronic conditions and reported no ADL or IADL limitations. The outcome was new ADL/IADL limitation among survivors or death before the next wave. The analytic file included 1,241 person-intervals from 1,045 respondents, with 696 adverse transitions. Regular exercise was associated with lower risk of this composite outcome (risk ratio 0.87, 95% confidence interval 0.78–0.96).
Supporting source [1]
Robustness checks and limits of the exercise finding
Model-standardized risks were 52.5% with regular exercise and 60.5% without it, a risk difference of −8.0 percentage points (95% CI −13.8 to −2.2). The association remained after adjustment for health indicators (risk ratio 0.89), after inverse-probability weighting for follow-up availability (0.87) and after excluding walking, carrying and crouching/standing items (0.84). Social participation, sleep and the resource score were not independently associated with the outcome. Associations were concentrated in IADL and community-function transitions, and interval-specific estimates suggested possible temporal heterogeneity. The authors state that causal interpretation remains limited.
Supporting source [1]
How to interpret this
Abstract only; the full text was not reviewed. This is an observational study, so associations are not causes. The outcome combined new ADL/IADL limitation among survivors with death before the next wave.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Lu T, Li Y, Chen M. · europepmc.org · October 5, 2026