Benjamin D. Sylvester

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BACKGROUND Participation in group-based physical activity (GBPA) interventions has been found to result in higher levels of exercise adherence and program compliance. However, previous reviews of GBPA programs have provided limited insight regarding 'for whom', 'under what conditions', and 'how' these interventions increase physical activity behavior. (More)
Drawing from goal setting theory (Latham & Locke, 1991; Locke & Latham, 2002; Locke et al., 1981), the purpose of this study was to conduct a systematic review and meta-analysis of multi-component goal setting interventions for changing physical activity (PA) behaviour. A literature search returned 41,038 potential articles. Included studies consisted of(More)
OBJECTIVE Perceived variety represents a psychosocial experience that gives rise to, and supports the maintenance of, an individual's well-being. In this study, we developed an instrument to measure perceived variety in exercise (PVE), and examined whether ratings of PVE predict unique variance in indices of exercise-related well-being in addition to that(More)
The economic burden of inactivity is substantial, with conservative estimates suggesting the global cost to health care systems is more than US$50 billion. School-based programs, including physical education and school sport, have been recommended as important components of a multi-sector, multi-system approach to address physical inactivity. Additionally,(More)
In this study, we examined whether perceived variety in exercise prospectively predicts unique variance in exercise behavior when examined alongside satisfaction of the three basic psychological needs (for competence, relatedness, and autonomy) embedded within self-determination theory (Ryan & Deci, 2002), through the mediating role of autonomous and(More)
The purpose of this study was to examine the extent to which the provision of variety (i.e., variety support) is related to exercise behavior among physically inactive adults and the extent to which the ‘experience of variety’ mediates those effects. One hundred and twenty one inactive university students were randomly assigned to follow a high or low(More)
The objective of the studies presented in this paper was to examine whether the need to belong can be used to enhance exercise cognitions and behavior. Two studies examined the effectiveness of framing exercise as a means of boosting social skills (versus health benefits) for self-regulatory efficacy, exercise intentions, and (in Study 2) exercise behavior.(More)
Despite the recommendations for cancer survivors to engage in either moderate or vigorous physical activity, light-intensity physical activity may also have beneficial effects on mental health. The purpose of this study was to examine the associations between light, moderate, and vigorous physical activity and depressive symptoms in breast cancer survivors(More)
BACKGROUND Regular physical activity is associated with a range of physical and psychological health benefits. In North America the majority of adolescents are insufficiently active. PURPOSE The purpose of this study was to examine the prospective relationship between adolescents' perceptions of transformational leadership displayed by their school(More)
BACKGROUND The purpose of this study was to experimentally examine the extent to which variety support in a resistance exercise program influences exercise-related well-being among inactive adults. METHODS A sample of 121 inactive university students were randomly assigned and participated in either a high or low variety support 6-week exercise program.(More)
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