General Info

The quadriceps muscles (Quads) are a group of four muscles located at the front of the thigh, crucial for activities like jumping, running, and kicking. They are among the largest and strongest muscles in the body and consist of four distinct muscles: the Rectus Femoris, Vastus Lateralis, Vastus Intermedius, and Vastus Medialis. 

These muscles run from the pelvis, crossing the knee joint and inserting at the top of the Tibia. Their primary functions are hip flexion and knee extension. They also help stabilize the knee by keeping the patella in its groove on the femur. 

The vastus group produces 80% of the knee extension torque, while the rectus femoris contributes 20%. (Torque measures the force that causes an object to rotate about an axis.) 

The quads work in conjunction with the hamstring muscles at the back of the thigh to facilitate walking, standing, and sitting. Imbalances in strength between these muscle groups can lead to abnormal movement patterns and increase the risk of hip and knee issues.

Q&A with Cam

Learn what might be behind your symptoms

Which athletes are most likely to suffer from Quad issues?

Athletes who participate in lower limb dominant sports such as football, rowing or high intensity gym workouts are the people most likely to suffer a Quad injury.

Common injuries to the Quad muscles include muscle strains, contusions (Corked Thigh). 

Quad strains or tears are often seen in running and jumping athletes and Kickers and can affect different areas of the muscle, such as the Rectus Femoris central tendon, muscle-tendon junction, or muscle belly.

Contusions are caused by direct contact in collision sports .

DOMS, Delayed Onset Muscle Soreness is caused by increased or excessive lower limb activity, such as heavy squats at the gym or a sudden change in intensity and or  volume of exercise like running or hiking.

For Quad pain, the best course of action includes applying ice for pain relief (using an Ice Mate), add compression and as soon as pain allows, start  light quad stretches with a Stretchband or Powerband, and then engage in active exercises to regain strength and power. Early exercise includes simple contractions and progressing to pain-free knee extensions with a Powerband. 

Reducing muscle tightness can be achieved using a trigger tool (Pocket Physio Max). 

Muscle contusions, often resulting from direct force or collision sports, may involve heavy blows or impacts, and are managed with rest, ice, compression, and early, pain-free muscle contractions

Care should be taken to avoid repeated contusions that can lead to Myositis Ossificans.

Quadriceps tendon ruptures, occurring above the kneecap, and patellar tendon ruptures, occurring below the kneecap, are caused by forced knee flexion or explosive activities like running or jumping.

Both types of tendon ruptures result in the loss of the knee extensor mechanism and generally require immediate surgical intervention.

A rectus femoris rupture, which may occur in the tendon or mid-belly of the muscle, often happens during activities such as running, acceleration, deceleration, or kicking.

Symptoms include initial severe pain, which will subside over time, and a visible divot in the middle of the thigh if not surgically treated. This injury typically reduces hip flexor strength but does not significantly impact knee extensor strength.

For any of these injuries, the best course of action includes immobilizing the area, applying ice with an Icemate to manage pain, and seeking immediate diagnosis and treatment from a doctor.

Quad Strains/Tear - 

  • Grade 1:  10-14 days  
  • Grade 2:  4-6 weeks 
  • Grade 3:  6-12 weeks

Corked Thigh - If managed very well usually a player can return within a week. More significant contusions two weeks. Return will be with padding to assist in avoiding further contact damage.

Tendon Ruptures - Recovery time for various quadriceps and patellar tendon injuries, such as a Rectus Femoris rupture, Quadriceps Tendon rupture, or Patellar Tendon rupture, typically ranges from 6 to 12 months following surgery. 

The duration of RTP (Return to Play) depends on factors including the athlete's level, the availability of support, and their commitment to rehabilitation programs.