The Effect of Phase I Cardiac Rehabilitation Training on Self-Efficacy in Patients After Coronary Artery Bypass Graft Surgery Based on Body Mass Index: A Clinical Trial Study

Background: Body Mass Index (BMI) is an influential factor in conducting cardiac rehabilitation programs for patients following coronary artery bypass graft (CABG) surgery. This study aimed to investigate the effect of Phase I cardiac rehabilitation training on the self-efficacy of CABG patients based on their BMI. Methods: This clinical trial was conducted on ۶۰ patients who had undergone CABG surgery, selected through convenience sampling. The recruited individuals were randomly allocated into two groups of ۳۰: an intervention group and a control group. Generally, Phase I of the cardiac rehabilitation program, encompassing both theoretical and practical components, was delivered ۷۲ hours after CABG surgery. Data were collected using the Cardiac Self-Efficacy Scale completed by patients in both groups at three time points: pre-intervention, at discharge, and one month after discharge. Results: The mean age of the participants in the intervention group was ۶۱.۶ years, and that of the patients in the control group was ۵۷.۹ years. The overall mean self-efficacy score for the patients in the intervention group showed a significant difference compared to pre-intervention only in individuals with normal weight and overweight status at discharge (P < ۰.۰۵) and one month after the intervention (P < ۰.۰۵). Although the overall mean self-efficacy score in obese individuals in the intervention group showed a noticeable difference compared to the control group at discharge and one month after the intervention, this difference was not statistically significant. Conclusion: The impact of BMI on the effectiveness of cardiac rehabilitation programs varies among patients following CABG surgery. Patients with normal weight and those who are overweight experience a greater increase in the mean scores across various dimensions of cardiac self-efficacy compared to obese individuals. The implementation of cardiac rehabilitation programs appears to be less effective in obese patients.

کلیدواژه ها:

Cardiac Rehabilitation ، Body mass index ، self-efficacy ، Education