What is a muscle strain? Click on this link which is a wonderful source for a simple explanation.
http://www.kinetic-revolution.com/muscle-strain-tear/

What is a Muscle Strain or Tear?

Have you ever wondered if that muscle pain you feel is a strain or actually a tear… is there a difference? In this article we are going to clear up the confusion and talk about what actually happens when you have a muscular injury.

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