Research Article

Intensity-Dependent Effect of Treadmill Running on Knee Articular Cartilage in a Rat Model

Figure 1

Macroscopic view of the surfaces of femoral articular cartilage in SED, LIR, MIR, and HIR groups. Smooth and glistening surface was observed in group SED (a). Similar appearance of the cartilage was found in groups LIR (b) and MIR (c). However, the cartilage surface in group HIR became lusterless and rough (d).
172392.fig.001a
(a)
172392.fig.001b
(b)
172392.fig.001c
(c)
172392.fig.001d
(d)