Philip M. Wilson

The relationship between perceived autonomy support, exercise regulations and behavioral intentions in women

Abstract Objectives: To examine Self-Determination Theory’s (SDT; Deci, E.L., & Ryan, R.M. (1985). Intrinsic motivation and self-determination in human behavior . New York, NY: Plenum Press) proposition that perceptions of autonomy support underpin different regulations that, in turn, predict behavioral intentions in the context of exercise. The specific hypothesis examined in this study was that greater perceptions of autonomy support will be positively associated with more autonomous exercise regulations, which subsequently, will predict greater intentions to continue with exercise for the next 4 months. Design: Cross-sectional survey. Methods: Females ( n =232) involved in a team-based intramural event sponsored by a large university completed a self-administered survey in small groups not exceeding 15 people. Participants ranged in age from 17 to 31 (M, 20.86 years; SD, 2.21) and reported healthy body mass index (BMI) values (M, 22.14 Kg/m 2 ; SD, 2.33 Kg/m 2 ). Results: Bivariate correlations indicated that perceived autonomy support from friends was more favorably associated with identified and intrinsic regulations, an ordered pattern of relationships was evident among exercise regulations, and autonomous (identified and intrinsic) exercise regulations were more strongly correlated with greater intentions to exercise. Multivariate analysis using structural equation modeling supported a motivational model based on tenets of SDT that accounted for a substantial portion of the variance in identified ( R 2 =0.32) and intrinsic ( R 2 =0.33) exercise regulations and behavioral intentions ( R 2 =0.49). Conclusion: The motivational model proposed by SDT provides theoretically sound insights into the reasons why people intend to continue with exercise behavior, and allows for a meaningful analysis of motivational processes operating in the exercise domain.

Relationships between Exercise Regulations and Motivational Consequences in University Students.

Abstract 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.

Exercise motivation: a cross-sectional analysis examining its relationships with frequency, intensity, and duration of exercise

BackgroundIt is important to engage in regular physical activity in order to maintain a healthy lifestyle however a large portion of the population is insufficiently active. Understanding how different types of motivation contribute to exercise behavior is an important first step in identifying ways to increase exercise among individuals. The current study employs self-determination theory as a framework from which to examine how motivation contributes to various characteristics of exercise behavior.MethodsRegular exercisers (N = 1079; n = 468 males; n = 612 females) completed inventories which assessed the frequency, intensity, and duration with which they exercise, as well as the Behavioral Regulation in Exercise Questionnaire including four additional items assessing integrated regulation.ResultsBivariate correlations revealed that all three behavioral indices (frequency, intensity, and duration of exercise) were more highly correlated with more autonomous than controlling regulations. Regression analyses revealed that integrated and identified regulations predicted exercise frequency for males and females. Integrated regulation was found to be the only predictor of exercise duration across both genders. Finally, introjected regulation predicted exercise intensity for females only.ConclusionsThese findings suggest that exercise regulations that vary in their degree of internalization can differentially predict characteristics of exercise behavior. Furthermore, in the motivational profile of a regular exerciser, integrated regulation appears to be an important determinant of exercise behavior. These results highlight the importance of assessing integrated regulation in exercise settings where the goal of understanding motivated behavior has important health implications.

Examining the Psychometric Properties of the Behavioral Regulation in Exercise Questionnaire

The purpose of this study was to examine select psychometric properties of the Behavioral Regulation in Exercise Questionnaire (BREQ; Mullen, Markland, & Ingledew, 1997). To accomplish this aim, data were gathered in 2 phases to evaluate the BREQs factorial composition and structure and the relation between the BREQ, need satisfaction, exercise behavior, and relevant motivational constructs. Participants completed measures assessing psychological need satisfaction, optimism, perceived behavioral control, exercise behavior, and the BREQ. Phase 1 results supported the original 4-factor measurement model and a simplex model of structural relations between latent BREQ constructs suggested within self-determination theory (Deci & Ryan, 1985), and results supported the positive relations between more self-determined motives and greater psychological need satisfaction and frequent exercise behavior. Phase 2 results provided further construct validity evidence for the BREQ by linking subscale scores with greater perceived behavioral control in a manner consistent with theory (Deci & Ryan, 1985). Collectively, these results further support the construct validity of the BREQ and lend credence to the notion of measuring exercise motivation from a multidimensional perspective using self-determination theory as a guiding framework in the exercise domain.

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.

An experimental investigation of the relation between catastrophizing and activity intolerance

&NA; 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 maneuvres. 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.

Evidence for a Multidimensional Self-Efficacy for Exercise Scale

This series of three studies considers the multidimensionality of exercise self-efficacy by examining the psychometric characteristics of an instrument designed to assess three behavioral subdomains: task, scheduling, and coping. In Study 1, exploratory factor analysis revealed the expected factor structure in a sample of 395 students. Confirmatory factor analysis (CFA) confirmed these results in a second sample of 282 students. In Study 2, the generalizability of the factor structure was confirmed with CFA in a randomly selected sample of 470 community adults, and discriminant validity was supported by theoretically consistent distinctions among exercisers and nonexercisers. In Study 3, change in self-efficacy in conjunction with adoption of novel exercise was examined in a sample of 58 women over 12 weeks. Observed changes in the three self-efficacy domains appeared to be relatively independent. Together, the three studies support a multidimensional conceptualization of exercise self-efficacy that can be assessed and appears to be sensitive to change in exercise behavior.

The relationship between commitment and exercise behavior

Objectives: The purpose of this study was to examine the relationship between commitment and exercise behavior using the Sport Commitment Model (SCM; J Sport & Exercise Psychology, 15, 1) as a guiding conceptual framework. Design: Cross-sectional survey. Methods: Participants at two universities (N1=205; 83.4% female; N2=223; 73.1% female) provided demographic information and completed measures of exercise commitment and frequency of exercise behavior. Results: Exploratory and confirmatory factor analyses supported the presence of 5 determinants (personal investments, social support, satisfaction, social constraints, and invovlement alternatives) and 2 dimensions (‘want’ and ‘have’) of commitment. Structural equation modeling analyses supported the predictive utility of the SCM accounting for 31% and 51% of the commitment dimension variance and 12% of the exercise behavior variance respectively. Satisfaction and personal investment predicted both commitment dimensions, whereas alternatives and social constraints predicted ‘have to’ commitment only, and the ‘want to’ commitment dimension was the only significant predictor of exercise behavior. Conclusion: These results render some support for the psychometric properties of the measures used to assess commitment constructs in the exercise domain and provide partial support for the application of the SCM to the study of exercise motivation issues.

Psychometric properties of the exercise identity scale in a university sample

Abstract The purpose of this study was to examine the structural and criterion validity of scores derived form the Exercise Identity Scale (EIS; Anderson & Cychosz, 1994). Participants (N = 269; 61.0% female) completed the EIS (Anderson & Cychosz, 1994), the Psychological Need Satisfaction in Exercise Scale (PNSE; Wilson, Rogers, Rodgers, & Wild, 2006), and the Godin Leisure Time Exercise Questionnaire (Godin & Shepherd, 1985). Confirmatory factor analyses indicated a 2‐factor EIS measurement model comprised of role identity and exercise beliefs factors provided a superior fit to the data compared with a unidimensional model. Correlational and multiple regression analyses suggested that both role identity and exercise beliefs were associated with more frequent exercise behavior and stronger psychological need fulfillment in exercise, although the pattern was more pronounced for role‐identity. Collectively, these results suggest the EIS may hold some promise for advancing our understanding of exercise identity issues and highlights the need for further construct validation research with the EIS.

Distinguishing Perceived Competence and Self-Efficacy: An Example From Exercise

This article examined the conceptual and statistical distinction between perceived competence and self-efficacy. Although they are frequently used interchangeably, it is possible that distinguishing them might assist researchers in better understanding their roles in developing enduring adaptive behavior patterns. Perceived competence is conceived in the theoretical framework of self-determination theory and self-efficacy is conceived in the theoretical framework of social-cognitive theory. Purpose: The purpose of this study was to empirically distinguish perceived competence from self-efficacy for exercise. Method: Two studies evaluated the independence of perceived competence and self-efficacy in the context of exercise. Using 2 extant instruments with validity and reliability evidence in exercise contexts, the distinctiveness of the 2 constructs was assessed in 2 separate samples (n = 357 middle-aged sedentary adults; n = 247 undergraduate students). Results: Confirmatory factor analysis supported the conceptual and empirical distinction of the 2 constructs. Conclusions: This study supports the conceptual and statistical distinction of perceived competence from perceived self-efficacy. Applications of these results provide a rationale for more precise future theorizing regarding their respective roles in supporting initiation and maintenance of health behaviors.