Protective Effect of High-Intensity Interval Training (HIIT) and Moderate-Intensity Continuous Training (MICT) against Vascular Dysfunction in Hyperglycemic Rats

Figure 11

Microscopic view of the aortic wall stained with hematoxylin-eosin at 400× magnification. Tunica intima (endothelial) detachment and an irregularity in the arrangement of collagen fibers and smooth muscle cells in the tunica media were observed in the hyperglycemic control group. (a) Control group. (b) Hyperglycemic control group. (c) Hyperglycemic rats that performed moderate-intensity continuous training (MICT). (d) Hyperglycemic rats that performed high-intensity interval training (HIIT). (1) Tunica intima. (2) Tunica media. (3) Smooth muscle cells (SMC).