Walkability and the Places We Live
Walkable neighbourhoods are associated with lower obesity, type 2 diabetes and hypertension (Chandrabose 2018), which reports the evidence on whether physical activity explains this as inconclusive.
What the evidence says
The sources are systematic reviews and meta-analyses of neighbourhood design, physical activity and cardiometabolic health. Chandrabose 2018 (meta-analysis of longitudinal studies) reports strong evidence for longitudinal relationships of walkability with obesity, type 2 diabetes and hypertension, with evidence on mediation by physical activity inconclusive. Sarkar 2022 (meta-analysis of the workplace built environment) reports very strong evidence for an association between access to and density of destinations and services and metabolic health in working adults, and concludes that overall confidence in the available evidence is low. Kärmeniemi 2018 (systematic review of longitudinal studies and natural experiments) reports improved accessibility and new active-transport infrastructure associated with increased physical activity. McCormack 2011 (systematic review) reports land-use mix, connectivity and density as determinants of physical activity, with associations attenuating after accounting for neighbourhood self-selection. Lam 2021 (systematic review) reports associations between most built-environment characteristics and weight outcomes null or equivocal, with fast-food exposure, urbanisation, land-use mix and urban sprawl more consistently linked. Renalds 2010 (systematic review) concludes that walkable neighbourhoods are associated with favourable health outcomes, Rachele 2019 (systematic review) reports pedestrian infrastructure and aesthetics positively associated with physical function, and Westenhöfer 2023 (systematic review of 40 health impact assessments) reports that 31 of 40 documented improvements in health or health behaviour.
- Misconception: 'Willpower is what determines how much you walk.' Kärmeniemi 2018 reports better accessibility associated with more physical activity.
- Observational association; does not claim moving house changes an individual's risk
- Agreement
- Direction recorded for 0 of 8 sources; not yet recorded for the rest.
- The claim's outcome
- Outcome not yet recorded
- Certainty
- No source states a certainty rating.
- How the sources were read
- Some sources are based on abstracts, not full texts.
What each source measured and concluded (8)
- What it measured
- Physical function in relation to neighbourhood built environment
- How it was read
- based on the abstract, not the full text
- What the review says it includes
- Systematic review
- Studies and participants, as stated
- 23 quantitative studies
- What it measured
- Physical activity in relation to built environment changes
- How it was read
- based on the abstract, not the full text
- What the review says it includes
- Systematic review of longitudinal studies and natural experiments
- Studies and participants, as stated
- 51 studies (21 prospective cohort studies and 30 natural experiments)
- What it measured
- Cardio-metabolic health outcomes (obesity, type 2 diabetes, hypertension, heart disease, stroke) and mediation by physical inactivity in relation to built environment
- How it was read
- based on the abstract, not the full text
- What the review says it includes
- Systematic review and meta-analysis of longitudinal studies
- Studies and participants, as stated
- N=36 articles
- What it measured
- Relationship between built environment and health outcomes
- How it was read
- based on the abstract, not the full text
- What the review says it includes
- Systematic review
- Studies and participants, as stated
- 23 articles
- What it measured
- Metabolic health (weight, blood pressure, lipids, glucose)
- How it was read
- based on the abstract, not the full text
- What the review says it includes
- Systematic review and meta-analysis
- Studies and participants, as stated
- N=16 studies
- What it measured
- Weight-related outcomes (e.g., weight status, BMI, waist circumference).
- How it measured it
- Self-reported and objectively measured.
- How it was read
- read in full text
- What it measured
- Health improvements or health behavior changes.
- How it measured it
- Surveys, interviews, accelerometer measurements, GIS data.
- Its conclusion, in its own words
- “With few exceptions, HIAs document beneficial impacts of improving walkability on a variety of health outcomes, including reductions of mortality and non-communicable diseases.”
- How it was read
- read in full text
- What the review says it includes
- Systematic review of 40 studies
- Studies and participants, as stated
- N=not reported participants across 40 studies
- What it measured
- Physical activity.
- How it measured it
- Self-reports, direct observation, accelerometers, pedometers.
- How it was read
- read in full text
- What the review says it includes
- Systematic review of 33 studies (20 cross-sectional and 13 quasi-experimental)
- Studies and participants, as stated
- N=not reported participants across 33 studies
Every source below is shown with its study design and links to the original study. This is the audit trail.
“Abstract only” means the review read that paper’s abstract, not its full text; “screened only” means it was included at re-screening and not extracted. Both stay in the trail with their DOI, because how a source was read is part of the audit.