Fig. 1From: Altered expression levels of autophagy-associated proteins during exercise preconditioning indicate the involvement of autophagy in cardioprotection against exercise-induced myocardial injuryExercise preconditioning significantly reduces myocardial ischemia–hypoxia injury from high-intensity exercise. a Changes in plasma cTnI levels. b C-2R BG ischemia–hypoxia staining (×400). The normal cardiomyocytes were green in C-2R BG staining, while the ischemia–hypoxia cardiomyocytes were stained red. c Image analysis of C-2R BG ischemia–hypoxia staining. *P < 0.05 vs. group C; #P < 0.05 vs. group HEBack to article page