Luszczynska Aleksandra
Department of Psychology, University of Sussex, Pevensey 1, Brighton, Falmer BN1 9QH, UK.
Soc Sci Med. 2006 Feb;62(4):900-8. doi: 10.1016/j.socscimed.2005.06.043. Epub 2005 Aug 10.
The paper investigates the relations between involvement in an implementation intention intervention programme, frequency of the use of a self-regulatory physical activity planning strategy, and moderate physical activity among patients who had suffered myocardial infarction (MI). It examines whether effects of the implementation intention intervention on behavior change was mediated by change in the use of a planning strategy. A total of 114 patients from central and northern Poland took part in the study after their first uncomplicated MI. Data were collected individually at approximately 1 week after MI (Time 1), 2 weeks after short-term rehabilitation (about 8 weeks after MI: Time 2), and 8 months after MI (Time 3). After data collection at Time 2, patients were randomly assigned to the control group or the intervention group. Patients who participated in the implementation intention intervention maintained the same number of sessions of moderate physical activity at 8 months after MI (Time 3) as at 2 weeks after rehabilitation (Time 2). By contrast, patients from the control group performed significantly fewer sessions of moderate physical activity at Time 3, compared to Time 2. The intervention resulted in the more frequent use of a planning strategy at 8 months after MI. Change in the frequency of the use of a planning strategy completely mediated effects of the intervention on change in physical activity. Only patients who participated in the implementation intention intervention and increased their use of a planning strategy adhered to the recommended three or more sessions of moderate physical activity per week.
该论文调查了参与实施意图干预计划、自我调节身体活动计划策略的使用频率与心肌梗死（MI）患者的适度身体活动之间的关系。它检验了实施意图干预对行为改变的影响是否通过计划策略使用的变化来介导。来自波兰中部和北部的114名患者在首次发生无并发症的心肌梗死后参与了该研究。在心肌梗死后约1周（时间1）、短期康复后2周（约心肌梗死后8周：时间2）和心肌梗死后8个月（时间3）分别收集个体数据。在时间2收集数据后，患者被随机分配到对照组或干预组。参与实施意图干预的患者在心肌梗死后8个月（时间3）进行适度身体活动的次数与康复后2周（时间2）相同。相比之下，对照组患者在时间3进行适度身体活动的次数明显少于时间2。该干预导致在心肌梗死后8个月更频繁地使用计划策略。计划策略使用频率的变化完全介导了干预对身体活动变化的影响。只有参与实施意图干预并增加计划策略使用的患者坚持每周进行三次或更多次的适度身体活动。
