Document Type : Original Article
Authors
1 Department of Physical Education, Isalmic Azad University, Bojnourd branch, Bojnourd, Iran
2 Bojnourd
Abstract
Background and Aim: Beta-aminoisobutyric acid is a myokine that is produced and secreted by skeletal muscles. As a practical solution, exercise plays an important role in increasing beta-aminoisobutyric acid and improving insulin resistance and preventing obesity complications. The aim of the present study was to investigate the effect of increasing aerobic exercise on the serum level of beta-aminoisobutyric acid, insulin resistance index and body fat percentage in obese young women. Materials and Methods: In this quasi-experimental study with a pre-test-post-test design, 20 young obese and inactive women (mean age 32.2 ± 2.68 years and body mass index 31.1 ± 1.4 years) were randomly divided into control (n = 10) and exercise (n = 10) groups. An incremental aerobic exercise protocol was implemented for eight weeks, three days a week (with an intensity of 55 to 65% of heart rate reserve and a duration of 30 to 55 minutes). Blood samples were taken from the subjects before and after the intervention to measure insulin resistance and beta-aminoisobutyric acid. To analyze data using SPSS software version 26, ANCOVA and dependent t tests were used at a significance level of p≤0.05. Results: After eight weeks of intensive aerobic training, beta-aminoisobutyric acid (p=0.001) increased significantly in the training group compared to the control group. Fat percentage (p=0.001) and insulin resistance index (p=0.001) decreased significantly in the training group compared to the control group. Conclusion: According to the results of the present study, it seems that increasing aerobic exercise by increasing beta-aminoisobutyric acid and reducing insulin resistance and body fat percentage is an effective solution in reducing disorders related to overweight and obesity.
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