RECTUS FEMORIS

• Origin

Anterior inferior iliac spine, upper margin of acetabulum

• Insertion

Tibial tuberosity via patellar tendon

• Agonist(s)

- Gluteus maximus

- Vastus lateralis

- Vastus medialis

- Vastus intermedius

• Antagonist(s):

(Hamstrings)

- Biceps femoris

- Semitendinosus

- Semimembranosus

• Function

Knee extension, hip flexion

TRIGGER POINT(S)

• Location

Trigger points can be found along the length of the muscle, particularly in the middle portion.

• Pain Referral Pattern

Pain may refer to the front of the thigh and knee.

It can cause deep, aching, or sharp pain along the anterior thigh, and may contribute to discomfort or tightness around the knee.

• Potential Causes

• Overuse or repetitive activities involving hip flexion and knee extension, such as running, jumping, or cycling.

• Sudden movements or strains, especially during sports or physical activities.

• Poor posture or gait mechanics.

• Muscle imbalances between the rectus femoris and other thigh muscles.

• Trauma or injury to the front of the thigh or hip.

• Prevention Tips

• Use proper techniques and footwear during activities involving hip flexion and knee extension to avoid overloading the rectus femoris.

• Incorporate regular stretching and strengthening exercises for the hip and thigh muscles.

• Ensure proper warm-up and cooldown routines before and after exercise.

• Gradually increase workout intensity to avoid sudden strain.

• Ensure balanced strength training to avoid muscle imbalances.