ILIACUS

• Origin

Iliac crest. 

• Insertion

Joins the psoas major to form the iliopsoas.

• Agonist(s)

- Psoas major

- Psoas minor

• Antagonist(s)

- Gluteus maximus

• Function

Hip flexion

TRIGGER POINT(S)

• Location

Trigger points can be found along the length of the muscle, particularly near its origin at the iliac crest and its insertion where it joins the psoas major to form the iliopsoas.

• Pain Referral Pattern

Pain may refer to the lower abdomen, groin, and anterior thigh.

It can cause deep, aching pain in the lower back, pelvis, and sometimes the upper thigh, often mimicking symptoms of hip flexor strain or lower abdominal discomfort.

• Potential Causes

• Prolonged sitting or poor posture, especially with slumped or forward-leaning positions.

• Overuse or repetitive activities involving hip flexion, such as running, cycling, or sit-ups.

• Trauma or injury to the lower back, pelvis, or hip.

• Muscle imbalances between the iliacus and other core and hip muscles.

• Emotional stress and tension, which can cause the iliacus to tighten.

• Prevention Tips

• Maintain good posture, especially while sitting, to reduce strain on the iliacus.

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

• Take breaks and change positions regularly during prolonged sitting.

• Use proper techniques during activities involving hip flexion to avoid overloading the iliacus.

• Manage stress through relaxation techniques and regular physical activity to reduce tension in the iliacus.