Skeletal muscle tissue can break down glycogen, a carbohydrate polymer, into its individual monomers to be used for energy. What are the monomers produced?

Glycogen is also called as the animal starch. This carbohydrate polymer is made up of the several repeating monomer units (in thousands) of alpha D glucose. The skeletal muscles break down this glycogen into the monomer alpha D glucose units in order to generate energy, which can be used for the contraction and relaxation of the muscle filaments.

Hence, the answer is 'alpha D glucose'.