Improvement of Glucose Homeostasis in Response to Short-Term Aerobic Training in Middle-Aged Men with Abdominal Obesity

Reza  Naseri Rad; Mojtaba  Eizadi; Morteza  Ghasemi

doi:10.18502/ijdo.v15i2.12969

Reza Naseri Rad MS.C, Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Islamic Azad University, Islamshahr Branch, Islamshahr, Iran.
Mojtaba Eizadi Assistant Professor, Department of Exercise Physiology, Faculty of Humanities Sciences, Islamic Azad University, Saveh Branch, Saveh, Iran.
Morteza Ghasemi Assistant Professor, Department of Nursing, Faculty of Medical Sciences, Islamic Azad University, Arak Branch, Arak, Iran.

DOI: https://doi.org/10.18502/ijdo.v15i2.12969

Keywords: Aerobic exercise, Obesity, Glucose, Insulin function

Abstract

Objective: Overweight and obesity is associated with insulin resistance and is the most important risk factor of type 2 diabetes (T2DM). In present study, we assessed glycemic profile and insulin resistance response to a short term aerobic training in middle-aged men with abdominal obesity.

Materials and Methods: The subjects included 28 abdominally obese (waist circumference≥102cm) middle-aged men (39 ± 5 year) that were divided into exercise (n=14) or control (n=14) groups by randomly. Exercise subject were completed a short-term aerobic training at 55-70 % of maximal heart rate (6 weeks, 3 times / weekly) and control subjects remained no training. Pre-training and post-training of anthropometrical markers, fasting glucose, hemoglobin (HbA1C), insulin and insulin resistance were measured of 2 groups and compared by independent – paired t test (SPSS, Version 22.0).

Results: Aerobic exercise resulted in a significant decrease in glucose level (114 ± 13 versus 101 ± 11 mg/dL, P: 0.009) and HbA1C (6.14 ± 1.11 versus 4.91 ± 1.23, P: 0.021) in exercise group. But no significant changes were observed in insulin (8.31 ± 4.12 versus 8.29 ± 3.21, P: 0.119) and insulin resistance (2.34 ± 0.51 versus 2.07 ± 0.59, P: 0.073) in exercise groups.

Conclusion: Based on our finding, aerobic training independent of insulin function is associated with improved glucose in middle-aged obese men and this improvement can be attributed to other changes caused by exercise that requires further study in this area.