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Fig. 2 | BMC Sports Science, Medicine and Rehabilitation

Fig. 2

From: Cardiac hypertrophy is stimulated by altered training intensity and correlates with autophagy modulation in male Wistar rats

Fig. 2

Evaluation of Microscopic Cardiac Hypertrophy After 8 Weeks of Treadmill Training with Different Intensity. [A1–4] Representative photomicrographs of Left Ventricular (LV) myocardium after Hematoxylin and Eosin. Longitudinally oriented cardiomyocytes are displayed for control and exercised rats. [B1–3] Representative photomicrographs of cardiomyocyte hypertrophy found in LI (20%), MI (100%) and HI (100%). Cardiomyocyte cells were compared to RBC (Red blood cell). [C] Representative photomicrograph of mild myofiber disarray in MI (60%) and HI (100%). [D1–3] Representative photomicrographs of focal fibrosis in HI (100%). [E] A significant increased of cardiomyocyte cells size were observed in MI and HI training (a) compared to control (100%) and between LI and MI (b), LI and HI (c), MI and HI (d). Data was presented as average mean ± standard error of mean (SEM) with p < 0.05 considered as significant (*) and p < 0.01 considered as very significant (**)

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