e947a2da_Skeletal_muscle__Type_I_fibers
[Fiber Type] Major storage fuel [Type II a fibers] Creatine phosphate, glycogen [Type II x fibers] Creatine phosphate, glycogen [Type II b fibers] Creatine phosphate, glycogen [Type I fibers] 
Triglycerides
S l o w
S m a l l
H i g h
A e r o b i c
H o u r s
L o w
T r i g l y c e r i d e s
Skeletal muscle
Type I fibers