Heiss Valerie J, Petosa R L
a Department of Human Sciences/Kinesiology , The Ohio State University , PAES Room A020, 305 W. 17th Avenue, Columbus , OH 43210 , USA.
b Department of Human Sciences/Kinesiology, College of Education and Human Ecology , The Ohio State University , Columbus , OH 43210 , USA.
Psychol Health Med. 2016;21(1):92-101. doi: 10.1080/13548506.2015.1017510. Epub 2015 Mar 10.
The purpose of this study was to identify social cognitive theory (SCT) correlates of moderate- to vigorous-intensity exercise (MVPA) among adults with type 2 diabetes. Adults with type 2 diabetes (N = 181) participated in the study. Participants were recruited through ResearchMatch.org to complete an online survey. The survey used previously validated instruments to measure dimensions of self-efficacy, self-regulation, social support, outcome expectations, the physical environment, and minutes of MVPA per week. Spearman Rank Correlations were used to determine the relationship between SCT variables and MVPA. Classification and Regression Analysis using a decision tree model was used to determine the amount of variance in MVPA explained by SCT variables. Due to low levels of vigorous activity, only moderate-intensity exercise (MIE) was analyzed. SCT variables explained 42.4% of the variance in MIE. Self-monitoring, social support from family, social support from friends, and self-evaluative outcome expectations all contributed to the variability in MIE. Other contributing variables included self-reward, task self-efficacy, social outcome expectations, overcoming barriers, and self-efficacy for making time for exercise. SCT is a useful theory for identifying correlates of MIE among adults with type 2 diabetes. The SCT correlates can be used to refine diabetes education programs to target the adoption and maintenance of regular exercise.
本研究的目的是确定2型糖尿病成年人中中等至剧烈强度运动（MVPA）的社会认知理论（SCT）相关因素。181名2型糖尿病成年人参与了该研究。参与者通过ResearchMatch.org招募，以完成一项在线调查。该调查使用先前经过验证的工具来测量自我效能、自我调节、社会支持、结果期望、物理环境以及每周MVPA的分钟数等维度。使用斯皮尔曼等级相关性来确定SCT变量与MVPA之间的关系。使用决策树模型进行分类和回归分析，以确定SCT变量所解释的MVPA方差量。由于剧烈活动水平较低，仅对中等强度运动（MIE）进行了分析。SCT变量解释了MIE中42.4%的方差。自我监测、来自家人的社会支持、来自朋友的社会支持以及自我评估结果期望均对MIE的变异性有贡献。其他有贡献的变量包括自我奖励、任务自我效能、社会结果期望、克服障碍以及为锻炼腾出时间的自我效能。SCT是一种用于确定2型糖尿病成年人中MIE相关因素的有用理论。SCT相关因素可用于完善糖尿病教育项目，以针对定期运动的采用和维持。
