Definition of Strains
A strain is when a muscle becomes overstretched and tears. This painful injury, also called a “pulled muscle,” can be caused by an accident, improper use of a muscle, or overuse of a muscle.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc. – 5/2/2009