Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model
Figure 2
Histological morphology of femoral articular cartilage with hematoxylin eosin staining in SED (a), LIR (b), MIR (c), and HIR (d) groups. Grossly normal histological characteristics of cartilage sections were observed in groups SED, LIR, and MIR. In contrast, osteoarthritic histological changes of surface irregularities and cell cloning were found in group HIR.
