期刊
HEALTH PSYCHOLOGY
卷 29, 期 3, 页码 274-283出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0018644
关键词
behavior change; fruits and vegetables; randomized controlled trial; mental contrasting; implementation intentions
资金
- DAK (a German Health Insurance Association)
- Deutsche Forschungsgemeinschaft
Objective: This study tested whether an intervention that combined information with self-regulation strategies had a better effect on eating fruits and vegetables than an information-only intervention. Design: Women between age 30 and 50 (N = 255) participated in a 24-month randomized controlled trial comparing two brief interventions: All participants received the same information intervention; participants in the information plus self-regulation group additionally learned a self-regulation technique that integrates mental contrasting with implementation intentions. Main outcome measures: Participants reported in daily diaries how many servings of fruits and vegetables they ate per day during I week at baseline, and in the first week, I. 2, 4, and 24 months after intervention. Results: Participants in both groups ate more fruits and vegetables (0.47 to 1.00 daily servings) than at baseline during the first 4 months after intervention. Two years later, participants in the information plus self-regulation group maintained the higher intake, whereas participants in the information group returned to baseline levels. Conclusion: Adding self-regulation training to an information intervention increased its effectiveness for long-term behavior change.
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