Association Between Physical Performance and Sense of Autonomy in Outdoor Activities and Life-Space Mobility in Community-Dwelling Older People
Version of Record online: 21 MAR 2014
© 2014, Copyright the Authors Journal compilation © 2014, The American Geriatrics Society
Journal of the American Geriatrics Society
Volume 62, Issue 4, pages 615–621, April 2014
How to Cite
J Am Geriatr Soc 62:615–621, 2014.
- Issue online: 14 APR 2014
- Version of Record online: 21 MAR 2014
- Academy of Finland. Grant Numbers: 255403, 251723
- Finnish Ministry of Education and Culture
- mobility limitation;
- physical functioning;
To study the relationship between physical performance and sense of autonomy in outdoor activities with life-space mobility—the spatial area a person purposefully moves through in daily life—in community-dwelling older people.
Cross-sectional analyses of baseline data of the Life-Space Mobility in Old Age cohort study.
Structured interviews in participants' homes.
Community-dwelling people aged 75 to 90 (N = 848).
Sense of autonomy outdoors (Impact on Participation and Autonomy questionnaire subscale), life-space mobility (Life-Space Assessment; University of Alabama, Birmingham Study of Aging), and Short Physical Performance Battery.
The median score for life-space mobility was 64.0. In linear regression models, poorer physical performance and more-limited sense of autonomy were independently associated with more restrictions in life-space mobility, explaining approximately one-third of the variation in life-space mobility. Physical performance also had an indirect effect on life-space mobility through sense of autonomy outdoors. Subgroup analyses of 5-year age groups and sex revealed that the associations were somewhat stronger in women and the oldest age group.
Physical performance and sense of autonomy in outdoor activities explained a substantial portion of the variation in life-space mobility in healthy older people, indicating that physical and psychosocial factors play a role in maintaining mobility in old age.