Hunt Hillary R, Gross Alan M
University of Mississippi, 38677, USA.
Behav Modif. 2009 Nov;33(6):795-817. doi: 10.1177/0145445509348055.
Obesity is a world-wide health concern approaching epidemic proportions. Successful long-term treatment involves a combination of bariatric surgery, diet, and exercise. Social cognitive models, such as the Theory of Reasoned Action (TRA) and the Theory of Planned Behavior (TPB), are among the most commonly tested theories utilized in the prediction of exercise. As exercise is not a completely volitional behavior, it is hypothesized that the TPB is a superior theoretical model for the prediction of exercise intentions and behavior. This study tested validity of the TPB in a sample of bariatric patients and further validated its improvement over the TRA in predicting exercise adherence at different operative stages. Results generally confirmed research hypotheses. Superiority of the TPB model was validated in this sample of bariatric patients, and Perceived Behavioral Control emerged as the single-best predictor of both exercise intentions and self-reported behavior. Finally, results suggested that both subjective norms and attitudes toward exercise played a larger role in the prediction of intention and behavior than previously reported.
肥胖是一个全球性的健康问题，正接近流行程度。成功的长期治疗包括减肥手术、饮食和运动的结合。社会认知模型，如理性行动理论（TRA）和计划行为理论（TPB），是预测运动时最常被检验的理论之一。由于运动并非完全是一种自愿行为，因此假设TPB是预测运动意图和行为的更优理论模型。本研究在减肥患者样本中检验了TPB的有效性，并进一步验证了其在预测不同手术阶段运动依从性方面优于TRA。结果总体上证实了研究假设。TPB模型在该减肥患者样本中的优越性得到了验证，感知行为控制成为运动意图和自我报告行为的最佳单一预测指标。最后，结果表明，主观规范和对运动的态度在预测意图和行为方面所起的作用比之前报道的更大。
