The Effectiveness of Treatment Based on Acceptance and Commitment Therapy on Psychological Capital, Weight and Fat Mass in Obese Women

Introduction: The present study was conducted with the aim of investigating the effectiveness of acceptance and commitment therapy (ACT) on psychological capital, weight and fat mass of obese women. Method: This study is a semi-experimental, involving a pre-test and post-test design with a control group. The research population comprised all overweight and obese women living in Yazd in 2021. According to the inclusion criteria, 30 people were selected and randomly replaced in two experimental and control groups (15 people in each group). The research instruments included a demographic information questionnaire, the psychological capital questionnaire, and the ACT treatment protocol. Following the pre-test, subjects in the control group underwent ACT treatment training sessions as the independent variable. The intervention consisted of nine group therapy sessions, each lasting 1.5 hours. Analysis of covariance (ANCOVA) was used to analyze the data. Results: At the beginning of the research, the average weight in the experimental group was 73.85 kg and in the control group was 74.01 kg. The findings of the research showed that the treatment based on ACT was able to play an effective role in increasing the psychological capital of overweight and obese women in Yazd city (p=0/001). This treatment was also effective in reducing the fat mass and weight of the participants (p=0/001). Conclusion: According to the results of the present study, it seems that ACT can play an effective role in solving the problems of overweight women and increase their psychological capital and reduce their weight and fat mass.