Figure 1
From: High intensity training improves cardiac function in healthy rats

Exercise intervention reduces cardiac collagen content. Representative images of interstitial collagen, as indicated by the arrows, in LV sections obtained with Sirius red/Fast Green in SED, MIT and HIIT groups. (b) Total interstitial collagen quantification in SED (N = 10), MIT (N = 8) and HIIT (N = 8). Data are shown as mean ± SEM. *Denotes p < 0.05 vs. SED.