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Effects of supervised exercise on motivational outcomes in breast cancer survivors at 5-year follow-up.

Trinh, L, Mutrie, N, Campbell, AM, Crawford, JJ and Courneya, KS (2014) Effects of supervised exercise on motivational outcomes in breast cancer survivors at 5-year follow-up. Eur J Oncol Nurs, 18 (6). pp. 557-563.

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PURPOSE: Short-term physical activity (PA) has beneficial effects on symptom management and quality of life, however, longer-term adherence is likely needed for improved disease outcomes in breast cancer survivors (BCS). This study examined the effects of a supervised group exercise program on motivational outcomes and PA among BCS at 5-year follow-up. METHODS: The original study was a two-armed, randomized controlled trial comparing a 12-week supervised group exercise program to usual care among 203 BCS. BCS for this follow-up study were contacted at 60 months postintervention and asked to complete assessments of motivational outcomes from the Theory of Planned Behavior and PA behavior using the Scottish Physical Activity Questionnaire. RESULTS: Overall, 87 participants provided 5-year follow-up data with no differences in participation by group. Analyses of covariance (ANCOVAs) revealed that supervised exercise had a significant positive effect on descriptive norm at 5-year follow-up (mean = +0.6; 95% CI = +0.1 to +1.1; d = +0.48; p = 0.021). Small positive effects were also noted for perceived behavioral control (d = +0.18), instrumental attitude (d = +0.26), and injunctive norm (d = +0.35), although they were not statistically significant. Moreover, BCS who were more active at 5-year follow-up also reported more favorable perceived behavioral control (d = +0.16), instrumental attitude (d = +0.28), injunctive norm (d = +0.24), and descriptive norm (d = +0.31), although these differences were not statistically significant. CONCLUSIONS: This trial provides suggestive evidence that a supervised exercise program has positive effects on motivational outcomes even after 5 years. Additional intervention strategies during follow-up may further improve long-term adherence and health outcomes in BCS.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Trinh, L
Mutrie, N
Crawford, JJ
Courneya, KS
Date : December 2014
DOI : 10.1016/j.ejon.2014.07.004
Uncontrolled Keywords : Breast cancer, Exercise, Follow-up, Randomized controlled trial, Theory of planned behavior, Adult, Breast Neoplasms, Exercise, Female, Follow-Up Studies, Great Britain, Humans, Middle Aged, Motivation, Quality of Life, Surveys and Questionnaires, Survivors, Time Factors
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:18
Last Modified : 24 Jan 2020 18:57

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