Age-friendly city design linked to higher physical activity and self-rated health in older adults
A systematic review of 17 studies in WHO age-friendly cities and communities found positive associations between urban design features—such as accessible transport and walkable environments—and physical activity or self-rated health outcomes in older residents, though evidence strength was limited by reliance on self-reports and methodological inconsistency.
The World Health Organization's Global Network of Age-Friendly Cities and Communities (AFCCs) promotes urban environments, policies, and services that support older adults' health and participation. Researchers conducted a systematic review of 17 peer-reviewed studies published between 2017 and 2025 in WHO AFCC signatory cities to examine whether age-friendly features—including accessible transport, walkable streets, and outdoor infrastructure—were linked to directly measured or self-reported health and physical activity outcomes.
Most studies reported positive associations between these urban design features and older residents' physical activity levels or self-rated health. However, the strength of evidence was substantially limited: studies relied heavily on self-reported outcomes rather than objective measurements, used inconsistent methodologies, and varied widely in quality. Few studies employed longitudinal or quasi-experimental designs that could establish stronger causal links. The review found no meta-analysis was possible because outcome measures were too heterogeneous across studies. The authors concluded that while age-friendly city design shows promise for supporting active aging, rigorous evaluation frameworks—including standardised measurement tools, community-based research, and controlled comparison conditions—are needed to inform evidence-based urban health policy in rapidly aging societies.
The 17 studies examined different age-friendly features: accessible public transport was linked to increased mobility and social participation; walkable street design and dedicated pedestrian infrastructure correlated with higher reported physical activity; accessible outdoor spaces (parks, public seating) associated with more frequent outdoor time and social connection. However, study quality varied considerably—most were cross-sectional rather than longitudinal, making it impossible to know whether age-friendly features cause activity increases or whether more active older adults simply prefer neighborhoods with better infrastructure. Self-report bias is substantial: people living in newly improved neighborhoods may report feeling more active simply because they notice the changes, independent of actual behavior change. The review identified a critical gap: only a handful of studies used objective physical activity measurement (accelerometers, GPS tracking) or true comparison groups (residents in non-age-friendly versus age-friendly cities matched for baseline characteristics). Subgroup analysis was sparse—most studies did not separately examine effects by age, gender, income, or disability status, so we do not know which populations benefit most.
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- Health and Physical Activity Outcomes in Age-Friendly Cities and Communities: A Systematic Review of Emerging Evidence and a Future Research Agenda. — Australasian journal on ageing (Read the original)