Originally Posted by EdwardWilson
I agree with you. Swimming itself can't harm. Such issues are usually connected with the technique used.
My 2c worth is that I think it depends what's meant by "harm". I often get cramp in my calves while swimming. That can "harm" if I'm not careful.
My advice for a "torn" muscle, though I suspect that depends on just how torn it is, would be the standard: maintain movement, encourage circulation, rest, and avoid applying maximal stress i.e make movements to just before the level of discomfort rather than trying to force it. Forcing it, if it is damaged, will merely compromise the healing process.