Acute and Chronic Effects of Low-Volume High-Intensity Interval Training Compared to Moderate-Intensity Continuous Training on Glycemic Control and Body Composition in Older Women with Type 2 Diabetes

Objective: To compare the acute and chronic effects of low-volume high-intensity interval training (HIIT) to moderate-intensity continuous (MICT) on glycemic control, body composition glucose monitoring (CGM) in older women with type 2 diabetes (T2D). Methods: Thirty (68 ± 5 years) T2D were randomized two groups—HIIT (75 min/week) or MICT (150 min/week). Glucose homeostasis (A1c, glucose, insulin, HOMA-IR2) (iDXA) measured before after 12-week exercise intervention. During first last week (24-h 48-h exercise), following CGM-derived data measured: 24-h peak levels, variability time spent hypoglycemia as well severe mild hyperglycemia. Results: While lean mass increased (p = 0.035), total trunk fat decreased ? 0.007), without any difference between groups ? 0.81). Fasting levels 0.001) A1c 0.014) significantly improved only, a significant for fasting 0.02). Neither HIIT nor impacted at 1 0.25). However, hyperglycemia, 12 0.03). Conclusion: These results suggest that weeks is enough provide similar benefit improve effect when CGM.