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Biomedical subjects

Wendy M Rodgers

Publications and source records attributed to Wendy M Rodgers.

7 recordsLinked to original sources
PubMed2004

Relationships between exercise regulations and motivational consequences in university students.

The aim of this study was to examine propositions stemming from Self-Determination Theory (SDT) that contend motivational consequences vary as a function of different regulations in the exercise domain. Participants (N = 276; n = 98 men; n = 178 women) completed inventories assessing exercise regulations, current exercise behavior, and behavioral intentions to continue exercising for the next 4 months and the effort and importance associated with exercise participation. Bivariate analyses indicated autonomous exercise regulations (identified and intrinsic) were the strongest correlates of each motivational consequence across both sexes, and introjected regulation was positively associated with exercise consequences in women. Simultaneous multiple regression analyses indicated that exercise regulations accounted for a sizeable portion of the variance across each motivational consequence in both sexes (R2adj values ranged from .20 to .53). Both regression and structure coefficients revealed that introjected regulation was a stronger motivational force in women than men, and identified regulation was the most important predictor of all three motivational consequences in both sexes. Collectively, these findings suggest that exercise regulations differentially predict motivational consequences across sexes, and future research using this theoretical framework for examining motivational issues pertinent to the exercise domain appears warranted.

Adult↗
PubMed2002

An experimental investigation of the relation between catastrophizing and activity intolerance.

The present study examined the value of a measure of catastrophizing as a predictor of activity intolerance in response to delayed onset muscle soreness (DOMS). A sample of 50 (17 men, 33 women) sedentary undergraduates participated in an exercise protocol designed to induce muscle soreness and were asked to return 2 days later to perform the same physical maneuvers. Participants performed five strength exercises that emphasized the eccentric component of the muscle contraction in order to induce DOMS. Dependent variables of interest were the proportion reduction in total weight lifted, and the number of repetitions. Analyses revealed that catastrophizing, assessed prior to the first exercise bout, was significantly correlated with negative mood, pain and with reduction in weight lifted. Regression analyses revealed that catastrophizing predicted reductions in weight lifted even after controlling for pain and negative mood. These findings extend previous research in demonstrating that catastrophizing is associated with objective indices of activity intolerance associated with pain. Implications of these findings for understanding pain-related disability are addressed.

Adolescent↗
PubMed2002

Self-efficacy and mood in cardiac rehabilitation: should gender be considered?

The authors proposed to (a) determine the influence of phase II cardiac rehabilitation (CR) on task and barrier efficacy and mood in men and women, (b) determine the influence of task and barrier efficacy on postphase II CR exercise adherence, and (c) examine the bidirectional relationship between self-efficacy and mood. Fifty-seven men and 24 women completed task and barrier efficacy scales and the anxiety, depression, and vigor subscales 3 to 5 weeks before phase II CR, immediately before and after phase II CR, and 6 to 10 weeks after phase II CR. They found that the women had significantly larger increases in task and barrier efficacy from pre- to postphase II CR than the men did, whereas both men and women had a significant decline at follow-up. Men and women had a similar decrease in anxiety and an increase in vigor during phase II CR. However, vigor significantly declined at follow-up. All changes in mood were significantly related to changes in task and barrier efficacy.

Affect↗
PubMed2002

Determinants of exercise intention and behavior in survivors of breast and prostate cancer: an application of the theory of planned behavior.

The purpose of this study was to evaluate the theory of planned behavior as a framework for understanding exercise intention and behavior in survivors of breast and prostate cancer. Participants were 83 survivors of breast and 46 survivors of prostate cancer who were diagnosed within the previous 4 years and had completed treatment. Each participant completed a mailed self-administered questionnaire that assessed exercise during the previous week, demographic and medical variables, and the theory of planned behavior. For survivors of breast cancer, regression analyses indicated that attitude, subjective norm, and perceived behavioral control explained 45% of the variance in exercise intention with attitude, subjective norm, and perceived behavioral control each uniquely contributing to intention. Furthermore, exercise intention explained 30% of the variance in exercise behavior; however, perceived behavioral control added no unique variance. For survivors of prostate cancer, attitudes, subjective norm, and perceived behavioral control explained 36% of the variance in exercise intention, but only perceived behavioral control made a significant unique contribution. Furthermore, intention explained 36% of the variance in exercise behavior; however, perceived behavioral control added no unique variance. Results suggest that nurses may use the theory of planned behavior as a model for understanding the determinants of exercise intentions and behavior in survivors of breast and prostate cancer.

Attitude to Health↗
PubMedDate not supplied

Is the theory of planned behavior a useful framework for understanding exercise adherence during phase II cardiac rehabilitation?

PURPOSE: This study evaluated the theory of planned behavior (TPB) as a framework for understanding exercise adherence during phase II cardiac rehabilitation (CR). METHODS: A total of 215 patients completed a baseline questionnaire that included the TPB constructs and past exercise. Exercise adherence was measured via program attendance during phase II CR. RESULTS: Hierarchic regression analyses indicated that attitude, subjective norm, and perceived behavioral control (PBC) explained 30% of the variance in exercise intention, with attitude, subjective norm, and PBC each making significant unique contributions to intention. Furthermore, exercise intention explained 12% of the variance in exercise adherence. Finally, the behavioral, normative, and control beliefs provided novel information concerning why patients in phase II CR hold certain attitudes, subjective norms, PBC, and exercise intentions. CONCLUSION: Results of the present study provide evidence that the TPB is a useful framework for understanding exercise intentions and adherence during phase II CR.

Aged↗