Predictors of adherence to physical activity in the Lifestyle Interventions and Independence for Elders pilot study (LIFE-P).
OBJECTIVE
A prospective design was used to examine predictors of adherence to a physical activity intervention in older adults with compromised function.


METHODS
The sample included 213 men (31.1%) and women (68.9%) with an average age of 76.53 years.


RESULTS
The predictor variables accounted for 10% of the variance in percent attendance during adoption and transition, respectively. Adding percent attendance during adoption to the prediction of percent attendance during transition increased the explained variance in this phase to 21%. During maintenance, the predictors accounted for 13% of the variance in frequency of physical activity; this estimate increased to 46% when adding in percent attendance from the transition phase.


CONCLUSIONS
These results are encouraging in that the physical activity intervention appears to have been well tolerated by diverse subgroups of older adults. The role of prior behavior in predicting downstream adherence underscores the importance of developing proactive interventions for treating nonadherence in older adult populations.
Department of Health and Exercise Science, Box 7868, Wake Forest University, Winston-Salem, NC 27109, USA. rejeski@wfu.edu
W Jack
WJ
Rejeski
Michael E
ME
Miller
Abby C
AC
King
Stephanie A
SA
Studenski
Jeffrey A
JA
Katula
Roger A
RA
Fielding
Nancy W
NW
Glynn
Michael P
MP
Walkup
Jamile A
JA
Ashmore
D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D004185:Disability Evaluation; D005260:Female; D015438:Health Behavior; D006801:Humans; D008019:Life Style; D008297:Male; D009043:Motor Activity; D010349:Patient Compliance; D010865:Pilot Projects; D011446:Prospective Studies; D014481:United States