No abstract

This review critically examines Transtheoretical Model (TTM)-based interventions for physical activity (PA) behavior change. It has been suggested that the TTM may not be the most appropriate theoretical model for applications to PA behavior change. However, previous reviews have paid little or no attention to how accurately each intervention represents the TTM. Findings comprise two sections: sample characteristics of each intervention reviewed and a summary outlining the use of the TTM to develop the interventions. Results reveal numerous inconsistencies regarding the development and implementation/application of TTM-based interventions. Specifically, the majority of interventions reported to be based on the TTM fail to accurately represent all dimensions of the model. Therefore, until interventions are developed to accurately represent the TTM, the efficacy of these approaches and the appropriateness of the underpinning theoretical model cannot be determined.

No abstract

Over the past three decades, there has been a dramatic global increase in childhood obesity. A better understanding of stakeholders' perceptions of intervention requirements could contribute to developing more effective interventions for childhood obesity. This study provides a qualitative, in-depth, analysis of stakeholders' (children, parents and health professionals) perspectives toward the efficacy of childhood obesity treatment interventions. Twenty-six stakeholders were recruited using purposive sampling; semi-structured interviews were adopted to explore stakeholders' perceptions with data analysed using a framework approach. Stakeholders concurred that treatment should be family-based incorporating physical activity, nutrition and psychological components, and be delivered in familiar environments to recipients. However, incongruence existed between stakeholders towards the sustainability of obesity treatment interventions. Parents and children reported needing ongoing support to sustain behavioural changes made during treatment, while health professionals suggested interventions should aim to create autonomous individuals who exit treatment and independently sustain behaviour change. This study provides an insight into issues of stakeholder involvement in the obesity intervention design and delivery process. To promote long-term behaviour change, there needs to be increased congruence between the delivery and receipt of childhood obesity treatment interventions. Interventions need to incorporate strategies that promote autonomous and self-regulated motivation, to enhance families' confidence in sustaining behaviour change independent of health professional support.

This article critically reviews the current body of grounded theory research within exercise psychology. Previous evidence has questioned the quality of grounded theory research within this academic domain. Guidelines for assessing grounded theory research are presented based on the common defining characteristics of the methodology and other published recommendations for assessing qualitative research. The review identified 21 articles that report on grounded theory studies conducted between 1999 and 2008. Findings comprise two sections: summary demographic characteristics and descriptive sample characteristics relating to the proposed assessment criteria. Results demonstrate that within exercise psychology, grounded theory is an increasingly popular methodological approach. However, many studies demonstrate a poor understanding of the grounded theory methodology or fail to present an adequate account of the research process. To further legitimise grounded theory as a form of enquiry within exercise psychology and to encourage greater research rigour in all grounded theory applications, it is crucial that both authors and reviewers understand the tenets of this approach and the limitations associated with a number of previous studies.