How can stimulation help in muscle rehabilitation?

Exercise substitute: Inactive muscle cells eventually die, and they can't be replaced. Neuromuscular electrical stimulation is designed to deliver small electrical stimulations to trigger skeletal muscles (as opposed to gut muscles) to contract without needing to physically perform exercise. Such treatments are only helpful in certain conditions, with more effectiveness at maintaining rather than building muscle mass.

Can help: I will give you an example. If someone has an acl tear ( this is in the knee), the muscle above the knee will often get thin and weak. This is called atrophy. Muscle stimulation can often be used in the beginning of a rehab process to get the muscle back into condition. This is not the only treatment but it is a good way to start.