Predicting objectively assessed physical activity from the content and regulation of exercise goals: evidence for a mediational model.

Centre for Exercise, Nutrition & Health Sciences, University of Bristol, Bristol, U.K.
Journal of sport & exercise psychology (Impact Factor: 2.59). 04/2011; 33(2):175-97.
Source: PubMed

ABSTRACT Grounded in self-determination theory (Deci & Ryan, 2000), the purpose of this work was to examine effects of the content and motivation of adults' exercise goals on objectively assessed moderate-to-vigorous physical activity (MVPA). After reporting the content and motivation of their exercise goals, 101 adult participants (Mage = 38.79 years; SD = 11.5) wore an ActiGraph (GT1M) accelerometer for seven days. Accelerometer data were analyzed to provide estimates of engagement in MVPA and bouts of physical activity. Goal content did not directly predict behavioral engagement; however, mediation analysis revealed that goal content predicted behavior via autonomous exercise motivation. Specifically, intrinsic versus extrinsic goals for exercise had a positive indirect effect on average daily MVPA, average daily MVPA accumulated in 10-min bouts and the number of days on which participants performed 30 or more minutes of MVPA through autonomous motivation. These results support a motivational sequence in which intrinsic versus extrinsic exercise goals influence physical activity behavior because such goals are associated with more autonomous forms of exercise motivation.

1 Bookmark
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Investigate employees' underlying motivational regulatory styles toward healthy living and their associations with lifestyle, work style, health, vitality, and productivity. Regression analyses on cross-sectional data from Dutch employees (n = 629), obtained as baseline measurement before a workplace health promotion project. Controlled regulation was not associated with smoking and alcohol use, and negatively associated with physical activity, healthy dietary habits, relaxation, and a balanced work style. Autonomous regulation was positively associated with physical activity, healthy dietary habits, and relaxation, and negatively associated with smoking and alcohol use. Healthy lifestyle and work style were associated with perceived health and vitality, which in turn were associated with employees' productivity (absenteeism and presenteeism). Internalization of the value of health is important to promote a healthy lifestyle and work style among employees, and has meaningful business implications.
    Journal of occupational and environmental medicine / American College of Occupational and Environmental Medicine 05/2014; 56(5):540-6. · 1.88 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Background Obesity is a leading risk factor for endometrial cancer (EC), particularly Type I forms, which are increasing in the U.S. Although death rates from most cancers have been decreasing, overall mortality in EC is increasing in the U.S. EC survivors’ poor fitness combined with their surgical treatments may make weight loss particularly challenging. High intensity exercise increases neurotrophins and neurological reward via altered striatal dopamine in animals; and, in humans, chronic high intensity exercise enhances meal-induced satiety and may reduce hedonic eating. 'Assisted' exercise, a mode of exercise whereby a patient’s voluntary exercise rate is augmented mechanically, may modulate brain dopamine levels in Parkinson's Disease patients but has not been previously evaluated as a treatment for obesity. Methods We describe the rationale and design of the REWARD trial, which has the overarching goal of randomizing 120 obese EC survivors to 'assisted' or voluntary rate cycling to evaluate the efficacy of ‘assisted’ exercise in enhancing and sustaining weight loss. Patients in both arms will receive 3 days/week of supervised exercise and 1 day/week of a group behavioral dietary intervention for 16 weeks and, then, will be followed for 6 months. Outcomes The primary outcome is weight loss. Secondary outcomes include measures for body composition, fitness, eating behavior, exercise motivation, quality of life as well as cognition and food reward and motivation as assessed by functional magnetic resonance imaging (fMRI) tasks. Conclusions If successful, the REWARD program could be extended to help sustain weight loss in obese cancer and non-cancer patients.
    Contemporary Clinical Trials 08/2014; · 1.99 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This article describes the systematic development of the I Move intervention: a web-based computer tailored physical activity promotion intervention, aimed at increasing and maintaining physical activity among adults. This intervention is based on the theoretical insights and practical applications of self-determination theory and motivational interviewing.Methods/design: Since developing interventions in a systemically planned way increases the likelihood of effectiveness, we used the Intervention Mapping protocol to develop the I Move intervention. In this article, we first describe how we proceeded through each of the six steps of the Intervention Mapping protocol. After that, we describe the content of the I Move intervention and elaborate on the planned randomized controlled trial. By integrating self-determination theory and motivational interviewing in web-based computer tailoring, the I Move intervention introduces a more participant-centered approach than traditional tailored interventions. Adopting this approach might enhance computer tailored physical activity interventions both in terms of intervention effectiveness and user appreciation. We will evaluate this in an randomized controlled trial, by comparing the I Move intervention to a more traditional web-based computer tailored intervention.Trial registration: NTR4129.
    BMC Public Health 02/2014; 14(1):212. · 2.32 Impact Factor

Full-text (2 Sources)

Available from
Jun 3, 2014