Quadriceps Muscle Strain or Tear Information

Quadriceps Muscle Strain or Tear


The quadriceps femoris (quadriceps extensor, or quads) consists of four muscles on the front of the thigh: the rectus femoris, the vastus medialis, the vastus lateralis, and the vastus intermedius. These muscles contain predominantly type II (fast-twitch) muscle fibres. Its main action is to extend or straighten the knee.

Anatomy: Leg - Injury: Quadriceps Muscle Strain or Tear Information

Mechanism of Injury

  • Overstretching or forceful contraction such as in sprinting jumping.
  • The rectus femoris muscle is particularly susceptible to injury as it passes over two joints, the hip and the knee.


  • A stab of intense pain as the injury occurs during activity.
  • The muscle may go into spasm.
  • Intense tenderness over the injured area.
  • Swelling may occur.
  • Pain can be elicited by contracting the muscle against resistance.
  • A defect can be felt in the muscle in cases of a complete or major partial tear.


Please consult with your medical professional for a complete diagnosis and treatment plan.

Recommended Thermoskin Product

Under the direction of your medical professional and in conjuction with your advised treatment plan, any of the following Thermoskin products are recommended.

Adjustable Multi Purpose Wrap

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Sport Thigh Hamstring Adjustable

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