Cheung Corjena, Wyman Jean, Gross Cynthia, Peters Jennifer, Findorff Mary, Stock Holly
Nursing Program, College of St. Catherine, St Paul, MN 55105, USA.
J Aging Phys Act. 2007 Jan;15(1):103-18. doi: 10.1123/japa.15.1.103.
The transtheoretical model (TTM) was developed as a guide for understanding behavior change. Little attention has been given, however, to the appropriateness of the TTM for explaining the adoption of exercise behavior in older adults. The purposes of this study were to determine the reliability of the TTM instruments and validate TTM predictions in 86 community-dwelling older adults (mean age 75.1 +/- 7.0 years, 87% women) who were participants in a 16-week walking program. TTM construct scales--self-efficacy, decisional balance (pros and cons), and processes of change (behavioral and cognitive)--were generally reliable (all>.78). Behavioral processes of change increased from baseline to follow-up, but pros, cons, and cognitive processes did not change among participants who became regular exercisers. Stage of change did not predict exercise adoption, but baseline self-efficacy predicted walking behavior. These results lend partial support to the TTM in predicting exercise behavior.
跨理论模型（TTM）是作为理解行为改变的指南而开发的。然而，对于TTM在解释老年人运动行为采用方面的适用性关注较少。本研究的目的是确定TTM工具的可靠性，并在86名参与16周步行计划的社区居住老年人（平均年龄75.1±7.0岁，87%为女性）中验证TTM预测。TTM构念量表——自我效能、决策平衡（利弊）和改变过程（行为和认知）——总体上是可靠的（均>0.78）。从基线到随访，行为改变过程有所增加，但在成为定期锻炼者的参与者中，利、弊和认知过程没有变化。改变阶段并不能预测运动行为的采用，但基线自我效能可以预测步行行为。这些结果为TTM在预测运动行为方面提供了部分支持。
