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Sperber NR, Allen KD, Devellis BM, Devellis RF, Lewis MA, Callahan LF. Differences in effectiveness of the active living every day program for older adults with arthritis. Journal of Aging and Physical Activity. 2013 Oct 1; 21(4):387-401.
OBJECTIVE: The authors explored whether demographic and psychosocial variables predicted differences in physical activity for participants with arthritis in a trial of Active Living Every Day (ALED). METHOD: Participants (N = 280) from 17 community sites were randomized into ALED or usual care. The authors assessed participant demographic characteristics, self-efficacy, outcome expectations, pain, fatigue, and depressive symptoms at baseline and physical activity frequency at 20-wk follow-up. They conducted linear regression with interaction terms (Baseline Characteristic Randomization Group). RESULTS: Being female (p .05), less depressed (p .05), or younger (p .10) was associated with more frequent posttest physical activity for ALED participants than for those with usual care. Higher education was associated with more physical activity for both ALED and usual-care groups. DISCUSSION: ALED was particularly effective for female, younger, and less depressed participants. Further research should determine whether modifications could produce better outcomes in other subgroups.