What is a Quadriceps Strain?
A quadriceps strain is a tearing of the muscle fibers in one of the four quadriceps muscle, most commonly occuring in the rectus femoris. This injury occurs with explosive contraction of the muscle, often when trying to change directions, jumping, or taking off to run. Quad injury is graded using the 1-3 scale, with grade 1 strains being the least severe, and grade 3 being the worst. Depending on the severity of the strain, you may be able to feel a defect in the muscle, or a hole where the tear is.