Studies in Learning, Evaluation, Innovation and Development > Vol. 5, No. 2 (2008)

The Relationship between the Theory of Planned Behaviour, Past Exercise Behaviour and Intention in Individuals Diagnosed with Type 2 Diabetes

Cally Davies, CQU


The purpose of this study was to determine the mediating effect of the theory of planned behaviour (TPB) on past exercise behaviour and intention. Participants were recruited from an existing study within Central Queensland University (CQU) and were made up of 18, Type 2 Diabetics. Participants were required to complete a questionnaire designed to assess exercise characteristics using the measures of the TPB (subjective norm, perceived behavioural control, and attitude) to determine their mediating effect on exercise intention. Hierarchical regression analysis indicated that exercise intention was significantly associated with perceived behavioural control, past exercise behaviour and attitude towards exercise. No significant relationship was found between subjective norm and exercise intention. These results indicate that the majority of constructs within the TPB significantly predict exercise intention in a sample of individuals diagnosed with Type 2 Diabetes.

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