Skeletal muscle damaged by injury or by degenerative diseases is able to regenerate new muscle fibers?
In general, muscle tissue does not posses much regenerative capacity. It is usually replaced by connective tissue
Skeletal muscle possesses considerable regenerative capacity. This is attributed primarily to stem cell-like cells, i.e., satellite cells, that reside in the muscle tissue. They lie between the basal lamina and the plasmalemma of a fiber. Satellite cells can fuse with injured muscle fibers to repair those fibers and can fuse with other satellite cells to replace irreversibly-injured fibers. Muscle regenerates well from injury except for injuries in which the extracellular matrix is severely disrupted, e.g., as in when there is a traumatic loss of tissue such as an IED blast. Muscle regenerates well from injuries induced by exercise/work, eccentric contractions, freezing, toxin injection, ischemia/reperfusion, etc. It may take a month or so but the muscle usually recovers. However, age, impaired inflammatory response, etc. can impair the recovery.
I think skeletal muscle cells posses stem -like cells which can play certain roles in healing and even in regeneration
https://www.sciencedirect.com/science/article/abs/pii/S094096021500103X
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