TY - JOUR
T1 - Physical activity and functional limitations in older adults
T2 - The influence of self-efficacy and functional performance
AU - Mullen, Sean P.
AU - McAuley, Edward
AU - Satariano, William A.
AU - Kealey, Melissa
AU - Prohaska, Thomas R.
N1 - Funding Information:
The HAN Walking Study was also made possible through work conducted by the CDC Healthy Aging Research Network. The CDC Healthy Aging Research Network is a Prevention Research Centers Program funded by the CDC Healthy Aging Program. This research was supported in part by cooperative agreements from CDC’s Prevention Research Centers Program: U-48-DP-001911, 001908, 001921, 001924, 001936, 001938, and 001944. The contents of this manuscript are solely the responsibility of the authors and do not necessarily represent the official views of the CDC.
Funding Information:
The project also used data from the RAND Center for Population Health and Health Disparities (CPHHD), which is funded by Grant 1-P50-ES012383 from the National Institute of Environmental Health Sciences. For further information on CPHHD, see www.rand.org/health/centers/ pophealth/index.html.
Funding Information:
Edward McAuley is supported by a Shahid and Ann Carlson Khan Professorship in Applied Health Sciences.
Funding Information:
The HAN Walking Study was made possible through a grant from the Robert Wood Johnson Foundation, Active Living Research Program (052515). The main participants on that grant include the following: William Satariano and Susan Ivey (Principal and Co-Principal Investigators/Site Directors, UC Berkeley, Alameda County, CA); Elaine Kurtovich (Project Manager, UC Berkeley); Melissa Kealey (Data Manager, UC Berkeley); Constance Bayles (Site Director, University of Pittsburgh, Allegheny County, PA); Rebecca Hunter (Site Director, University of North Carolina, Wake and Durham counties, NC); and Thomas Prohaska (Site Director, University of Illinois, Chicago, Cook County, IL). S. P. Mullen was involved in the data analysis and manuscript preparation. E. McAuley was involved in supervising the data analysis and manuscript preparation. W. A. Satariano was involved in study planning and revising the manuscript. M. Kealey was involved in data preparation and manuscript revising. T. R. Prohaska was involved in study planning and manuscript revising.
PY - 2012/5
Y1 - 2012/5
N2 - Objectives. Data from the Healthy Aging Network (HAN) study (Prohaska, T., Eisenstein, A., Satariano, W., Hunter, R., Bayles, C., Kurtovich, E., ... Ivey, S. [2009]. Walking and the preservation of cognitive function in older populations. The Gerontologist, 49[Suppl. 1], S86-S93; and Satariano, W., Ivey, S., Kurtovich, E., Kealey, M., Hubbard, A., Bayles, C., ... Prohaska, T. [2010]. Lower-body function, neighborhoods, and walking in an older population. American Journal of Preventive Medicine, 38, 419-428.) were used to examine the relationships among physical activity, self-efficacy, functional performance, and limitations. Method. Interviews were conducted within homes and senior centers in 4 geographic regions across the United States. Participants were 884 older adults (M age = 74.8; 77% female; 35% minority status) who completed measures of walking behavior, way-finding self-efficacy, walking self-efficacy, functional performance, functional limitations, and demographic characteristics. Results. Path analysis within a covariance modeling framework revealed significant direct effects of walking on self-efficacy constructs, functional performance on functional limitations, and efficacy on limitations. Additionally, significant indirect effects were also found, including walking on limitations via walking self-efficacy and performance and walking self-efficacy on limitations via performance. Furthermore, we found support for invariance of the model across geographical grouping. Discussion. Our findings provide further validation for an efficacy-based model of functional limitations. Walking-related efficacy may help reduce or possibly delay the onset of functional limitations.
AB - Objectives. Data from the Healthy Aging Network (HAN) study (Prohaska, T., Eisenstein, A., Satariano, W., Hunter, R., Bayles, C., Kurtovich, E., ... Ivey, S. [2009]. Walking and the preservation of cognitive function in older populations. The Gerontologist, 49[Suppl. 1], S86-S93; and Satariano, W., Ivey, S., Kurtovich, E., Kealey, M., Hubbard, A., Bayles, C., ... Prohaska, T. [2010]. Lower-body function, neighborhoods, and walking in an older population. American Journal of Preventive Medicine, 38, 419-428.) were used to examine the relationships among physical activity, self-efficacy, functional performance, and limitations. Method. Interviews were conducted within homes and senior centers in 4 geographic regions across the United States. Participants were 884 older adults (M age = 74.8; 77% female; 35% minority status) who completed measures of walking behavior, way-finding self-efficacy, walking self-efficacy, functional performance, functional limitations, and demographic characteristics. Results. Path analysis within a covariance modeling framework revealed significant direct effects of walking on self-efficacy constructs, functional performance on functional limitations, and efficacy on limitations. Additionally, significant indirect effects were also found, including walking on limitations via walking self-efficacy and performance and walking self-efficacy on limitations via performance. Furthermore, we found support for invariance of the model across geographical grouping. Discussion. Our findings provide further validation for an efficacy-based model of functional limitations. Walking-related efficacy may help reduce or possibly delay the onset of functional limitations.
KW - Aging
KW - Functional limitations
KW - Physical activity
KW - Self-efficacy
UR - http://www.scopus.com/inward/record.url?scp=84859794538&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84859794538&partnerID=8YFLogxK
U2 - 10.1093/geronb/gbs036
DO - 10.1093/geronb/gbs036
M3 - Article
C2 - 22473023
AN - SCOPUS:84859794538
SN - 1079-5014
VL - 67 B
SP - 354
EP - 361
JO - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
JF - Journals of Gerontology - Series B Psychological Sciences and Social Sciences
IS - 3
ER -