PMID- 12434937 OWN - NLM STAT- MEDLINE DCOM- 20030303 LR - 20191210 IS - 0883-6612 (Print) IS - 0883-6612 (Linking) VI - 24 IP - 4 DP - 2002 Fall TI - Correlates of adherence and contamination in a randomized controlled trial of exercise in cancer survivors: an application of the theory of planned behavior and the five factor model of personality. PG - 257-68 AB - In this study, we examined correlates of adherence and contamination in a randomized controlled trial (RCT) of exercise in cancer survivors using the theory of planned behavior and the Five Factor Model of personality (FFM). We randomly assigned cancer survivors in group psychotherapy classes to either a waiting-list control group (n = 45) or a home-based, moderate intensity exercise program (n = 51). At baseline, participants completed measures of the theory of planned behavior, the FFM, past exercise, physical fitness, medical variables, and demographics. We then monitored exercise over a 10-week period by weekly self-reports. Hierarchical multiple regression analyses indicated that the independent predictors of overall RCT exercise across both conditions were past exercise (beta = .36, p < .001), assignment to experimental condition (beta = .34, p < .001), sex (beta = .30, p < .001), and intention (beta = .14, p < .10). For exercise adherence in the exercise condition, the independent predictors were sex (beta = .38, p < .01), extraversion (beta = .30, p < .05), normative beliefs (beta = -.27, p < .05), and perceived behavioral control (beta = .23, p < .10). Finally, the independent predictors of exercise contamination in the control condition were past exercise (beta = .70, p < .001), sex (beta = .20, p < .05), and intention (beta = .17, p < .10). We conclude that the correlates of exercise adherence and contamination differ in kind as well as in degree. Explanations for these findings and practical implications for conducting exercise RCTs in this population are offered. FAU - Courneya, Kerry S AU - Courneya KS AD - Faculty of Physical Education, University of Alberta, Edmonton, Canada. kerry.courneya@ualberta.ca FAU - Friedenreich, Christine M AU - Friedenreich CM FAU - Sela, Rami A AU - Sela RA FAU - Quinney, H Arthur AU - Quinney HA FAU - Rhodes, Ryan E AU - Rhodes RE LA - eng GR - R01 CA79460/CA/NCI NIH HHS/United States PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Ann Behav Med JT - Annals of behavioral medicine : a publication of the Society of Behavioral Medicine JID - 8510246 SB - IM MH - Adult MH - Aged MH - Alberta MH - Confounding Factors, Epidemiologic MH - *Exercise MH - Female MH - Health Behavior MH - Humans MH - Male MH - Middle Aged MH - Models, Psychological MH - Multivariate Analysis MH - Neoplasms/*rehabilitation MH - Patient Compliance/*psychology MH - *Personality MH - Randomized Controlled Trials as Topic/*statistics & numerical data MH - Regression Analysis MH - Reproducibility of Results EDAT- 2002/11/19 04:00 MHDA- 2003/03/04 04:00 CRDT- 2002/11/19 04:00 PHST- 2002/11/19 04:00 [pubmed] PHST- 2003/03/04 04:00 [medline] PHST- 2002/11/19 04:00 [entrez] AID - 10.1207/S15324796ABM2404_02 [doi] PST - ppublish SO - Ann Behav Med. 2002 Fall;24(4):257-68. doi: 10.1207/S15324796ABM2404_02.