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The benefits of being self‐determined in promoting physical activity and affective well‐being among women recently treated for breast cancer
Author(s) -
Brunet Jennifer,
Burke Shaunna M.,
Sabiston Catherine M.
Publication year - 2013
Publication title -
psycho‐oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.41
H-Index - 137
eISSN - 1099-1611
pISSN - 1057-9249
DOI - 10.1002/pon.3287
Subject(s) - amotivation , breast cancer , affect (linguistics) , physical activity , analysis of variance , medicine , intrinsic motivation , leisure time , psychology , cancer , demography , physical therapy , social psychology , communication , sociology
Purpose In this study, changes in motivational regulations in women following treatment for breast cancer were described. Changes in motivational regulations as predictors of subsequent change in light and moderate‐to‐vigorous physical activity (PA) and affect were also examined. Methods Women [ n = 150; M age = 54.41 ( SD = 10.87) years] completed self‐report questionnaires and wore an accelerometer for 7 days at Time 1 [ M = 3.94 ( SD = 3.08) months following primary treatment], as well as 3 (Time 2) and 6 (Time 3) months later. Data were analyzed using repeated‐measures analysis of variance and path analysis using residual change scores. Results Identified regulation and self‐determined motivation (i.e., combined intrinsic motivation and identified regulation) scores decreased over time ( p < 0.05). In the path model [ χ 2 (4) = 5.66, p = 0.22, root mean square error of approximation = 0.05 (90% CI: 0.0; 0.15), comparative fit index = 0.99, standardized root mean square of the residuals = 0.03], ΔTime 1–2 in external regulation was associated with ΔTime 2–3 in positive affect ( β = −0.16), ΔTime 1–2 in introjected ( β = 0.25) and amotivation ( β = 0.19) were related to ΔTime 2–3 in negative affect, and ΔTime 1–2 in self‐determined motivation was related to ΔTime 2–3 in positive affect ( β = 0.40) and moderate‐to‐vigorous PA ( β = 0.21). Conclusions Changes in motivational regulations were related to changes in PA and affect in the aftermath of breast cancer. Given the benefits of self‐determined motivation, additional research is needed to develop and test interventions aimed at enhancing this type of motivation. Copyright © 2013 John Wiley & Sons, Ltd.