Department of Kinesiology, University of Western Ontario, Ontario Canada.
Health Psychol. 2009 Nov;28(6):726-33. doi: 10.1037/a0016702.
A Protection Motivation Theory (PMT) framework was used to examine whether information about the role of exercise in preventing maternal-fetal disease served as a meaningful source of exercise motivation.
Pregnant women (n = 208) were randomly assigned into one of three conditions: PMT, attention control, and noncontact control. Women in the PMT group read a brochure about the benefits of exercise during pregnancy incorporating the major components of PMT; perceived vulnerability (PV), perceived severity (PS), response efficacy (RE), and self-efficacy (SE). Participants in the attention-control condition read a brochure about diet. Following treatment, all participants completed measures of their beliefs toward maternal-fetal disease and exercise, goal intention (GI), and implementation intention (IMI). One week later, a measure of self-reported exercise behavior was collected.
Main outcome measures were PMT variables (PV, PS, RE, and SE), GI, IMI, and follow-up physical activity.
Participants assigned to the PMT-present group reported significantly higher PS, RE, SE, GI, and increased exercise behavior. PS, RE, and SE predicted GI, GI predicted IMI, and IMI predicted exercise behavior.
Information grounded in PMT is effective in influencing pregnant women's beliefs and intentions as well as changing their initial behavior.
采用保护动机理论（PMT）框架，考察运动在预防母婴疾病方面的作用信息是否能作为运动动机的有效来源。
将 208 名孕妇随机分配到三个条件之一：PMT、注意力控制和非接触控制组。PMT 组的女性阅读了一本关于怀孕期间运动益处的小册子，其中包含了 PMT 的主要组成部分：感知易感性（PV）、感知严重性（PS）、反应效能（RE）和自我效能（SE）。注意力控制组的参与者阅读了一本关于饮食的小册子。治疗后，所有参与者都完成了对母婴疾病和运动的信念、目标意图（GI）和实施意图（IMI）的测量。一周后，收集了自我报告的运动行为测量。
主要结果测量指标包括 PMT 变量（PV、PS、RE 和 SE）、GI、IMI 和后续的身体活动。
被分配到 PMT 呈现组的参与者报告了更高的 PS、RE、SE、GI 和增加的运动行为。PS、RE 和 SE 预测 GI，GI 预测 IMI，IMI 预测运动行为。
基于 PMT 的信息对影响孕妇的信念和意图以及改变其初始行为是有效的。
