The Impact of Combined Exercise Training on Glycemic Control and Physical Fitness in Middle-Aged Men with Type 2 Diabetes
Paper ID : 1447-SPORTCONGRESS (R1)
Authors
Seyed Gholamhossein Rahim *
Assistant Professor, Department of Sport Sciences, Faculty of Literature and Humanities, Malayer University, Malayer, Iran
Abstract
Abstract

Introduction: Type 2 diabetes (T2D) is a major global health challenge, characterized by impaired blood glucose control and an increased risk of cardiovascular complications. Non-pharmacological management is crucial, particularly for middle-aged individuals. While exercise is an established strategy, determining the most effective type and combination requires further investigation. This study examines the effects of a combined exercise program on key diabetic control and physical fitness indices in middle-aged men with T2D.

Methods: In this quasi-experimental study, 30 middle-aged men (45-55 years) with T2D were randomly assigned to either an experimental group (n=15) or a control group (n=15). The experimental group performed a combined exercise program, consisting of High-Intensity Interval Training (HIIT) on a stationary cycle and resistance training with elastic bands, three times per week for 12 weeks. The control group received only standard lifestyle advice. Indicators including hemoglobin A1c (HbA1c), fasting blood glucose, insulin sensitivity, aerobic capacity (VO₂max), and body composition (body fat percentage and lean muscle mass) were measured before and after the intervention.

Results: After 12 weeks, the experimental group demonstrated significant improvements in all measures compared to the control group. Mean HbA1c decreased from 7.8% to 6.9% (p < 0.01). Significant reductions were also observed in fasting blood glucose and body fat percentage. Conversely, indices of insulin sensitivity, VO₂max, and lean body mass increased significantly in the experimental group. No significant changes were observed in the control group.

Conclusion: The findings indicate that a 12-week combined exercise program (HIIT and resistance training) is a powerful non-pharmacological intervention, leading to significant improvements in glycemic control, body composition, and physical fitness in middle-aged men with T2D. Integrating this form of exercise into standard care plans can substantially contribute to reducing disease complications and enhancing quality of life.
Keywords
Type 2 Diabetes, High-Intensity Interval Training (HIIT), Resistance Training, Hemoglobin A1c, Middle Age
Status: Abstract Accepted (Poster Presentation)