Figure 1: Light photomicrographs demonstrating the features of different muscles use in our study. Cross-sections from rectus femoris (A), Sartorius (B), biceps femoris (C), vastus medialis (D), adductor magnus (E), semimembranosus accessorius (F), pectineus (G) muscles stained by myofibrillar ATPase after acid preincubation (pH 4.2). These muscles are mixed and composed of type I (dark), type IIB (light) and type IIA (intermediate) fibres. Cross section from vastus lateralis muscle stained by NADHTetrazolium reductase (SO: Slow oxidative fibres; FOG: Fast oxydoglycolytic fibres; FG: fast glycolytic fibres).