Predictors of physical activity-related energy expenditure among overweight and obese middle-aged women in south of Iran: An application of social cognitive theory

Abstract

AimsThis study aimed to determine the predictors of physical activity (PA) behavior in obese and overweight women in Borazjan district, south of Iran based on social cognitive theory (SCT). MethodsThis cross-sectional descriptive-analytic study was conducted on 398 obese or overweight middle-aged women referring to comprehensive health centers in Borazjan city. Data were analyzed using SPSS software version-22 and descriptive statistics, t-test, one-way ANOVA, Pearson correlation analysis and multiple regression analysis. ResultsBased on Pearson correlation analysis, the constructs of SCT including self-efficacy, self-regulation, outcome-expectations and perceived social-support from family and friends were related to physical activity behavior and energy expenditure. The multiple regression model showed self-efficacy and self-regulation were the most important predictors of PA behavior (R2 = 0.217). Self-efficacy predicted PA behavior in both obese and overweight women and self-regulation in obese women and perceived social-support from friends in overweight women, also was predictors. ConclusionConsidering the results of the study that showed differences in predictive constructs of PA between two groups of overweight and obese women, it can be used to design and develop educational interventions to encourage overweight and obese women to do more PA and enhance their health status throughout a more active lifestyle.