@Article{信息:doi 10.2196 / / jmir。1965年，作者=“Gibson, Bryan and Marcus, Robin L and Staggers, Nancy and Jones, Jason and Samore, Matthew and Weir, Charlene”，标题=“计算机模拟促进糖尿病患者步行的疗效”，期刊=“J Med Internet Res”，年=“2012”，月=“5”，日=“10”，卷=“14”，数=“3”，页=“e71”，关键词=“计算机模拟;2型糖尿病;身体活动;背景:定期步行是2型糖尿病(T2DM)患者的一种被推荐但未被充分利用的自我管理策略。目的:测试基于模拟的干预对2型糖尿病患者信念、意图、知识和行走行为的影响。我们比较了两个版本的简短叙述模拟。实验操作包括两个部分:展示步行对葡萄糖曲线的预期影响;以及完成下周步行的行动计划。主要假设是(1)干预参与者的步行(分钟/周)会比对照组参与者的步行增加更多，(2)结果预期(信念)的变化将是先前信念与模拟中呈现的信念之间差异的函数。 Secondary hypotheses were that, overall, behavioral intentions to walk in the coming week and diabetes-related knowledge would increase in both groups. Methods: Individuals were randomly assigned to condition. Preintervention measures included self-reported physical activity (International Physical Activity Questionnaire [IPAQ] 7-day), theory of planned behavior-related beliefs, and knowledge (Diabetes Knowledge Test). During the narrated simulation we measured individuals' outcome expectancies regarding the effect of exercise on glucose with a novel drawing task. Postsimulation measures included theory of planned behavior beliefs, knowledge, and qualitative impressions of the narrated simulation. The IPAQ 7-day was readministered by phone 1 week later. We used a linear model that accounted for baseline walking to test the main hypothesis regarding walking. Discrepancy scores were calculated between the presented outcome and individuals' prior expectations (measured by the drawing task). A linear model with an interaction between intervention status and the discrepancy score was used to test the hypothesis regarding change in outcome expectancy. Pre--post changes in intention and knowledge were tested using paired t tests. Results: Of 65 participants, 33 were in the intervention group and 32 in the control group. We excluded 2 participants from analysis due to being extreme outliers in baseline walking. After adjustment for baseline difference in age and intentions between groups, intervention participants increased walking by 61.0 minutes/week (SE 30.5, t58 = 1.9, P = .05) more than controls. The proposed interaction between the presented outcome and the individual's prior beliefs was supported: after adjustment for baseline differences in age and intentions between groups, the coefficient for the interaction was --.25, (SE 0.07, t57 = --3.2, P < .01). On average participants in both groups improved significantly from baseline in intentions (mean difference 0.66, t62 = 4.5, P < .001) and knowledge (mean difference 0.38, t62 = 2.4, P = .02). Conclusions: This study suggests that a brief, Internet-ready, simulation-based intervention can improve knowledge, beliefs, intentions, and short-term behavior in individuals with T2DM. ", issn="1438-8871", doi="10.2196/jmir.1965", url="//www.mybigtv.com/2012/3/e71/", url="https://doi.org/10.2196/jmir.1965", url="http://www.ncbi.nlm.nih.gov/pubmed/22576226" }