Department of Health Psychology, Freie Universität Berlin, Berlin, Germany.
Health Educ Behav. 2012 Apr;39(2):152-8. doi: 10.1177/1090198111417621. Epub 2011 Dec 13.
Many individuals are motivated to improve their physical activity levels but often fail to act on their good intention. This study examines the roles of planning and self-efficacy in the prediction of physical activity. A total of 290 participants (77% women, mean age = 41.9 years) were surveyed three times. Intentions, planning, and physical activity were specified as a mediator chain. Results reveal that intentions were partly translated into physical activity by planning. Self-efficacy moderated this mediation, reflected by a planning × self-efficacy interaction (p < .05) on physical activity accounting for 16% of the variance in behavior. If a person is self-efficacious, planning seems more likely to be translated into physical activity.
许多人都有提高身体活动水平的动机，但往往未能将其良好意愿付诸行动。本研究考察了计划和自我效能感在预测身体活动中的作用。共有 290 名参与者（77%为女性，平均年龄=41.9 岁）接受了三次调查。意图、计划和身体活动被指定为一个中介链。结果表明，意图通过计划部分转化为身体活动。自我效能感调节了这种中介作用，表现在计划与自我效能感的交互作用（p<0.05）对身体活动的影响占行为变异的 16%。如果一个人有自我效能感，那么计划似乎更有可能转化为身体活动。
