Centre de recherche FQR-S du Centre hospitalier affilié universitaire de Québec, Canada.
Glob Health Promot. 2013 Jun;20(2 Suppl):83-7. doi: 10.1177/1757975913483336.
This study tested the effect of theory-based interventions designed to increase fruit and vegetable intake (FVI). Adults (n = 291) were randomized into four groups: implementation intentions (II) group; self-efficacy (SE) group; combination of implementation intentions and self-efficacy (II+SE) group; and a control group receiving written information on nutrition. They were reassessed at 1, 3, 6 and 12 month follow-up. This study found that short interventions such as SE and II+SE can achieve significant differences in FVI at six-month follow-up compared to the control group. However, this effect was not maintained at 12-month follow-up. Practitioners should add materials or follow up meetings to ensure maintenance of behavioral change.
本研究测试了旨在增加水果和蔬菜摄入量（FVI）的基于理论的干预措施的效果。成年人（n=291）被随机分为四组：实施意向（II）组；自我效能（SE）组；实施意向和自我效能的组合（II+SE）组；以及接受营养书面信息的对照组。他们在 1、3、6 和 12 个月的随访中进行了重新评估。本研究发现，与对照组相比，SE 和 II+SE 等短期干预措施可以在 6 个月的随访中在 FVI 方面取得显著差异。然而，这种效果在 12 个月的随访中没有维持。从业者应添加材料或随访会议，以确保行为改变的维持。
