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Biomedical subjects

Philip M Wilson

Publications and source records attributed to Philip M Wilson.

7 recordsLinked to original sources
PubMed2006

Predicting physical activity and outcome expectations in cancer survivors: an application of Self-Determination Theory.

The purpose of this study was to examine the contributions of autonomous and controlled motives drawn from Self-Determination Theory (SDT; Intrinsic Motivation and Self-determination in Human Behavior. Plenum Press: New York, 1985; Handbook of Self-determination Research. University of Rochester Press: New York, 2002) towards predicting physical activity behaviours and outcome expectations in adult cancer survivors. Participants were cancer-survivors (N=220) and a non-cancer comparison cohort (N=220) who completed an adapted version of the Treatment Self-Regulation Questionnaire modified for physical activity behaviour (TSRQ-PA), an assessment of the number of minutes engaged in moderate-to-vigorous physical activity (MVPA) weekly, and the anticipated outcomes expected from regular physical activity (OE). Simultaneous multiple regression analyses indicated that autonomous motives was the dominant predictor of OEs across both cancer and non-cancer cohorts (R(2adj)=0.29-0.43), while MVPA was predicted by autonomous (beta's ranged from 0.21 to 0.34) and controlled (beta's ranged from -0.04 to -0.23) motives after controlling for demographic considerations. Cancer status (cancer versus no cancer) did not moderate the motivation-physical activity relationship. Collectively, these findings suggest that the distinction between autonomous and controlled motives is useful and compliments a growing body of evidence supporting SDT as a framework for understanding motivational processes in physical activity contexts with cancer survivors.

Adult↗
PubMed2006

Factors associated with physical activity in Canadian adults with diabetes.

INTRODUCTION: The purpose of this study was to identify key demographic and health factors associated with physical activity (PA) participation in adults with type 1 or type 2 diabetes. METHODS: Participants were adults > or = 18 yr of age living in the province of Alberta, Canada who were previously diagnosed with type 1 (N = 697) or type 2 (N = 1614) diabetes. Individuals were recruited from the Canadian Diabetes Association (Alberta) registry and through a random digit-dialing protocol. Multiple and logistic regression models were employed to identify demographic and health factors related to PA levels, of which many to date have not been examined in this population. Analyses were conducted separately for type 1 and type 2 groups. RESULTS: Of those with type 1 and type 2 diabetes, 63.7 and 71.9%, respectively, were not achieving recommended PA levels. For those with type 1, higher PA levels were associated with a younger age, being single, higher income, lower level of perceived disability, and not smoking. For the type 2 group, a younger age, male gender, higher education, higher income, lower body mass index, and lower level of perceived disability were associated with higher PA levels. CONCLUSIONS: Many of our results for both diabetes types are consistent with findings from other limited research in this domain. Contrary to previous research, however, a significant negative relationship was reported between body mass index and PA for the type 2 group. In addition, perceived disability was negatively associated with PA, which, to date, has not been reported in the literature with type 2 individuals. Research and practice related to physical activity promotion for this population should take into account specific demographic and health factors associated with PA.

Alberta↗
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↗
PubMedDate not supplied

Efficacy of an E-mail intervention for the promotion of physical activity and nutrition behavior in the workplace context.

PURPOSE: The purpose of this study was to evaluate a 12-week workplace e-mail intervention designed to promote physical activity and nutrition behavior. DESIGN: A pre- and post-test design was conducted to compare the effects of e-mail messages between intervention and control groups. SETTING: Five large workplaces in Alberta, Canada. SUBJECTS: Employees with access to a personal e-mail address (N = 2121) were randomly assigned to an intervention (n = 1566) or a control group (n = 555). INTERVENTION: Physical activity and nutrition messages were based on social-cognitive theories. The intervention group received one physical activity and one parallel nutrition message per week for 12 weeks. The control group received no weekly messages. MEASURES: Each participant completed self-report measures of physical activity and nutrition related to knowledge, attitudes, and behaviors 1 week before (time 1) and 1 week after (time 2) the intervention. RESULTS: The intervention group was more efficacious at time 2 on measures of self-efficacy, pros, cons, intentions, and behavior related to physical activity. This group also reported more favorable changes in practicing healthy eating, balancing food intake with activity level, cooking meals with techniques to reduce fat, and avoiding eating high-fat foods. Effect sizes for all significant differences were small. CONCLUSION: E-mail is a promising mode of delivery for promoting physical activity and nutrition in the workplace. Further theoretically driven studies are needed.

Adult↗