Sam, i’ve been nerding out on electrotherapy and there is a lot of evidence that certain types of electrotherapy can help healing of tissues. i recently bought a Marc Pro and its pulse patterns aren’t really what you would you use to heal tissues. i’m not sure i would use it on damaged tissue because it induces a strong contraction to facilitate the fluid flow process but i’m not sure it would be a good idea to use on muscle that is torn – it might make the injury worse.