Fig. 1.

Representative immunohistochemical images showing myosin heavy chain (MyHC) fiber type identification in the injured limb (scale bar = 50 μm). Type-IIA fibers are green, type-IIX fibers are red, type-IIA/X fibers are yellow/green, and type-I fibers are light pink. The distribution of fiber types IIA and IIA/X after surgery differed from that before surgery. Fig. 1-A Composite image (showing all stains) before surgery. Fig. 1-B Type-IIX fibers (red) in the preceding image. Fig. 1-C Composite image after surgery and rehabilitation. Fig. 1-D Type-IIX fibers in the preceding image.