Figure 5

Serial sections of trapezius and vastus lateralis muscle with fluorescence labelling. To illustrate the presence of slow and fast muscle fibers, sections were stained with antibodies against MyHCIIa (fast type 2a) (A and F) and MyHCI (slow type 1) (B and G). Adjacent sections were further stained with antibodies against Myotilin (C and H), NADH ubiquinone oxireductase (D and I) and Alpha crystalline beta (E and J); (*type 1 fiber **type 2 fiber). Note the predominance of type 1 fibers in the trapezius muscle and the type 1 fibers higher reactivity to the myotilin, NADH ubiquinone oxireductase and alpha crystalline beta antibodies.