Department of Psychology, University of Konstanz, 78457 Konstanz, Germany.
Rehabil Psychol. 2009 Nov;54(4):363-71. doi: 10.1037/a0017830.
Planning has been hypothesized to operate as a mediator linking intentions to health behaviors. To explore the temporal variation of these constructs and their interrelationships, a long-term study of intentions, planning, and physical activity was conducted.
A sample of 328 individuals in orthopedic rehabilitation provided data at five measurement occasions over 3 years after their discharge from rehabilitation. A process-oriented approach combining mediation analysis and latent growth curve (LGC) modeling was applied.
The orthopedic rehabilitation led to an initial increase in planning and behavior, followed by a decrease after 6 months and stabilization for the next 2.5 years. Intention revealed a slight but constant decrease for 6 months and remained stable up to 3 years after rehabilitation. The mediation model confirmed planning as mediator between intention and physical activity in former rehabilitation participants.
Prior evidence on the mediating role of planning in the intention-behavior relation is corroborated and extended by the present findings at the level of long-term processes. Planning can and should be integrated in rehabilitation treatment programs to facilitate sustainable recovery.
有假设认为，计划在将意图与健康行为联系起来方面起着中介作用。为了探索这些结构的时间变化及其相互关系，对意图、计划和体育活动进行了一项长期研究。
在康复后 3 年内，对来自骨科康复的 328 名个体在 5 个测量时间点进行了数据收集。采用了一种结合中介分析和潜在增长曲线（LGC）建模的过程导向方法。
骨科康复导致了计划和行为的最初增加，随后在 6 个月后下降，接下来的 2.5 年保持稳定。意图在 6 个月内略有但持续下降，在康复后 3 年内保持稳定。中介模型证实了计划在康复参与者的意图与体育活动之间的中介作用。
本研究结果在长期过程层面上证实并扩展了计划在意图-行为关系中起中介作用的先前证据。计划可以而且应该整合到康复治疗方案中，以促进可持续的康复。
