Objectively measured neighborhood walkability and change in physical activity in older Japanese adults: A five-year cohort study

Hiroyuki Kikuchi, Tomoki Nakaya, Tomoya Hanibuchi, Noritoshi Fukushima, Shiho Amagasa, Koichiro Oka, James F. Sallis, Shigeru Inoue

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Objectives: This study investigated the longitudinal association between changes in older adults’ physical activity and neighborhood walkability measured by geographic information systems (GISs, (ArcGIS, ESRI Inc., Redlands, CA, USA)). Methods: A mail survey was conducted for Japanese older adults who were randomly selected from three different settlement types. Data on walking, total moderate to vigorous physical activity (MVPA), and sociodemographic characteristics were collected at baseline (in 2010) and follow-up (in 2015). Multiple linear regression analyses were employed to assess the association between MVPA change and neighborhood walkability, adjusted for potential confounders. Effect sizes for independent variables on MVPA change were estimated. Results: Data from 731 community-dwelling older adults (43.7% women) were analyzed. During the follow-up, older adults’ MVPA was reduced by 94.4 min/week (−14.2%) on average (675.5 and 579.9 min/week in 2010 and 2015, respectively). Overall, older adults living in highly walkable areas showed a smaller reduction than those in low walkable areas (beta: 99.7 min/week, 95% confidence interval: 28.5–171.0). Similar associations were observed among those in the urban and suburban area, but not in the rural area. Walkability had larger effect sizes for explaining MVPA change than demographic characteristics. In addition, the findings for walking were similar to MVPA. Conclusion: Neighborhood walkability mitigated the 5-year reduction of walking and total MVPA among older adults, especially in urban areas.

Original languageEnglish
Article number1814
JournalInternational Journal of Environmental Research and Public Health
Volume15
Issue number9
DOIs
Publication statusPublished - 2018 Sep 1

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Cohort Studies
Exercise
Walking
Independent Living
Geographic Information Systems
Postal Service
Longitudinal Studies
Linear Models
Regression Analysis
Demography
Confidence Intervals

Keywords

  • Built environment
  • Exercise
  • Geographic information system (GIS)
  • Neighborhood environment
  • Prospective cohort study

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

Cite this

Objectively measured neighborhood walkability and change in physical activity in older Japanese adults : A five-year cohort study. / Kikuchi, Hiroyuki; Nakaya, Tomoki; Hanibuchi, Tomoya; Fukushima, Noritoshi; Amagasa, Shiho; Oka, Koichiro; Sallis, James F.; Inoue, Shigeru.

In: International Journal of Environmental Research and Public Health, Vol. 15, No. 9, 1814, 01.09.2018.

Research output: Contribution to journalArticle

Kikuchi, Hiroyuki ; Nakaya, Tomoki ; Hanibuchi, Tomoya ; Fukushima, Noritoshi ; Amagasa, Shiho ; Oka, Koichiro ; Sallis, James F. ; Inoue, Shigeru. / Objectively measured neighborhood walkability and change in physical activity in older Japanese adults : A five-year cohort study. In: International Journal of Environmental Research and Public Health. 2018 ; Vol. 15, No. 9.
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abstract = "Objectives: This study investigated the longitudinal association between changes in older adults’ physical activity and neighborhood walkability measured by geographic information systems (GISs, (ArcGIS, ESRI Inc., Redlands, CA, USA)). Methods: A mail survey was conducted for Japanese older adults who were randomly selected from three different settlement types. Data on walking, total moderate to vigorous physical activity (MVPA), and sociodemographic characteristics were collected at baseline (in 2010) and follow-up (in 2015). Multiple linear regression analyses were employed to assess the association between MVPA change and neighborhood walkability, adjusted for potential confounders. Effect sizes for independent variables on MVPA change were estimated. Results: Data from 731 community-dwelling older adults (43.7{\%} women) were analyzed. During the follow-up, older adults’ MVPA was reduced by 94.4 min/week (−14.2{\%}) on average (675.5 and 579.9 min/week in 2010 and 2015, respectively). Overall, older adults living in highly walkable areas showed a smaller reduction than those in low walkable areas (beta: 99.7 min/week, 95{\%} confidence interval: 28.5–171.0). Similar associations were observed among those in the urban and suburban area, but not in the rural area. Walkability had larger effect sizes for explaining MVPA change than demographic characteristics. In addition, the findings for walking were similar to MVPA. Conclusion: Neighborhood walkability mitigated the 5-year reduction of walking and total MVPA among older adults, especially in urban areas.",
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