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Mismatch between perceived and objective measures of physical activity environments

journal contribution
posted on 01.09.2008, 00:00 authored by Kylie BallKylie Ball, R Jeffery, David CrawfordDavid Crawford, Rebecca Roberts, Jo SalmonJo Salmon, Anna TimperioAnna Timperio
Objectives : This study investigated the correspondence between measures of physical activity facilities obtained through self-report and objective audits; and identified the socio-demographic, cognitive and behavioral characteristics of those who perceive their physical activity environment to be less supportive than objective measures indicate.
Methods : Self-report surveys were completed by 1540 women recruited from 45 neighborhoods in Melbourne, Australia. Women reported perceived access to physical activity facilities within 2 km from home, and also socio-demographic, cognitive and behavioral factors. Objective data on physical activity facilities within a 2 km pedestrian catchment area around women's homes were sourced.
Results : There was relatively poor agreement between measures of access to physical activity facilities obtained via self-report and objective assessment. Mismatch between perceived and objectively-assessed environments was more common amongst younger and older women, and women of low income, with low self-efficacy for physical activity, who were less active, who reported using fewer facilities and who had lived in the neighborhood for less than 2 years.
Conclusions : Future studies of environmental determinants of physical activity should consider incorporating objective indices of access to facilities, or accounting for the systematic bias that may result from relying on self-report perceptions as an indicator of the actual physical activity environment.

History

Journal

Preventive medicine

Volume

47

Issue

3

Pagination

294 - 298

Publisher

Academic Press

Location

San Diego, Calif.

ISSN

0091-7435

eISSN

1096-0260

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2008, Elsevier