title: Wheeled-mobility correlates of life-space and social participation in adult manual wheelchair users aged 50 and older.
abstract: To characterize the life-space mobility and social participation of manual wheelchair users using objective measures of wheeled mobility.
  
  
  
  Individuals (n = 49) were included in this cross-sectional study if they were aged 50 or older, community-dwelling and used their wheelchair on a daily basis for the past 6 months. Life-space mobility and social participation were measured using the life-space assessment and late-life disability instrument. The wheeled mobility variables (distance travelled, occupancy time, number of bouts) were captured using a custom-built data logger.
  
  
  
  After controlling for age and sex, multivariate regression analyses revealed that the wheeled mobility variables accounted for 24% of the life-space variance. The number of bouts variable, however, did not account for any appreciable variance above and beyond the occupancy time and distance travelled. Occupancy time and number of bouts were significant predictors of social participation and accounted for 23% of the variance after controlling for age and sex.
  
  
  
  Occupancy time and distance travelled are statistically significant predictors of life-space mobility. Lower occupancy time may be an indicative of travel to more distant life-spaces, whereas the distance travelled is likely a better reflection of mobility within each life-space. Occupancy time and number of bouts are significant predictors of participation frequency. Implications for rehabilitation Component measures of wheelchair mobility, such as distance travelled, occupancy time and number of bouts, are important predictors of life-space mobility and social participation in adult manual wheelchair users. Lower occupancy time is an indication of travel to more distant life-spaces, whereas distance travelled is likely a better reflection of mobility within each life-space. That lower occupancy time and greater number of bouts are associated with more frequent participation raises accessibility and safety issues for manual wheelchair users.
authors.affiliation: a Faculty of Health Sciences , Simon Fraser University , Burnaby , BC , Canada.|b Rehabilitation Research Program , GF Strong Rehabilitation Centre, Vancouver Coastal Health Research Institute , Vancouver , BC , Canada.
authors.forename: Brodie M
authors.initials: BM
authors.lastname: Sakakibara
authors.affiliation: c Department of Rehabilitation , Université Laval , Quebec City , QC , Canada.|d Center for interdisciplinary research in rehabilitation and social integration, Centre intégré universitaire de santé et de services sociaux de la Capitale-Nationale, Institut de réadaptation en déficience physique de Québec , Quebec City , QC , Canada.
authors.forename: François
authors.initials: F
authors.lastname: Routhier
authors.affiliation: b Rehabilitation Research Program , GF Strong Rehabilitation Centre, Vancouver Coastal Health Research Institute , Vancouver , BC , Canada.|e Department of Occupational Science and Occupational Therapy , University of British Columbia , Vancouver , BC , Canada.
authors.forename: William C
authors.initials: WC
authors.lastname: Miller
mesh_terms: D000368:Aged; D002170:Canada; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D006233:Persons with Disabilities / Q000523:psychology / Q000534:rehabilitation; D005260:Female; D006801:Humans; D057187:Independent Living; D008297:Male; D008875:Middle Aged; D051346:Mobility Limitation; D012044:Regression Analysis; D058992:Social Participation; D014910:Wheelchairs
keywords: Life-space mobility; social participation; wheelchair