Effect of Strength Training with Elastic Band on Body Mass Index, Quality of Life and Psychological Well-being in Obese Females

Introduction: Obese females have a lot of physical and psychological problems, and in this field, strength training with an elastic band can help. Therefore, the present study aimed to determine the effect of strength training with elastic band on Body Mass Index, quality of life, and psychological well-being in obese females. Methods: This study was quasi-experimental with a pre and post-test design with experimental and control groups. The research population was obese females referring to nutritional clinics of Qarchak city in 2018, who, among them, 40 females were selected by the available sampling method and randomly divided into two equal groups. The experimental group received two months (three sessions a week) the strength training with the elastic band by exercise instructor and the control group placed on the waiting list for training. Data were collected by instruments of body mass index and quality of life and psychological well-being questionnaires and were analyzed in the SPSS-18 software with multivariate analysis of covariance method. Results: The findings showed that there was a significant difference between the experimental and control groups in all three variables of body mass index, quality of life, and psychological well-being. In other words, the strength training with the elastic band led to a decrease in body mass index (F = 388.761) and increase the quality of life (F = 167.168) and psychological well-being (F = 175.576) in obese females (P < 0.05). Conclusions: It is recommended that nutritionists and coaches of sports clubs use from strength training with the elastic band method along with other ways to improve the body mass index, quality of life, and psychological well-being of obese females.