Gluteus Medius

Clinical Notes

• Central to conditions/lower-crossed-syndrome — gluteus medius weakness is a hallmark of the lower crossed pattern. When weak, the pelvis drops on the contralateral side during single-leg stance, producing Trendelenburg gait and increasing compensatory demands on piriformis, TFL, and quadratus lumborum.
• Key contributor to conditions/greater-trochanteric-pain-syndrome — the gluteus medius tendon inserts on the lateral greater trochanter. Tendinopathy at the insertion is the most common cause of lateral hip pain (previously called trochanteric bursitis — the bursa is usually secondarily involved, not the primary pathology).
• Relevant to conditions/iliotibial-band-syndrome — weakness of gluteus medius forces TFL to compensate as a hip abductor, increasing IT band tension and lateral knee pain.
• Contributes to conditions/patellofemoral-pain-syndrome — gluteus medius weakness allows femoral internal rotation and adduction during single-leg stance, increasing the Q-angle and lateral patellar tracking stress.

• In the general population, gluteus medius is weak far more often than it is tight. Prolonged sitting inhibits the muscle and shifts abduction demand to TFL. The typical presentation is a client with lateral hip pain, a positive Trendelenburg, and TFL that is hypertonic and tender.
• When hypertonic (less common), usually in runners or individuals with repetitive single-leg loading, the muscle feels taut and tender along the iliac crest and lateral pelvis. The posterior fibers are almost always the most problematic.
• Bilateral weakness is common in sedentary clients but often asymmetric, with the more affected side corresponding to the side with more symptoms.

• The posterior fibers respond well to sustained compression and cross-fiber work along the iliac crest, but this area is often very tender — communicate with the client and work within tolerance.
• Myofascial release along the lateral pelvis from iliac crest to greater trochanter is effective for the mid-belly and anterior fibers.
• Because gluteus medius is so often weak rather than purely hypertonic, treatment should emphasize activation and strengthening over release. Sidelying hip abduction (clamshells, sidelying leg raises) during or immediately after treatment is more effective than release alone.

• The superior gluteal neurovascular bundle exits the pelvis superior to piriformis and runs between gluteus medius and gluteus minimus. Avoid sustained deep compression in the space between these two muscles, particularly near the greater sciatic notch.
• Aggressive deep work directly over the greater trochanter can irritate the trochanteric bursa. Work the muscle belly above and around the trochanter rather than directly on the bony prominence.

• Gluteus medius is the primary pelvic stabilizer during single-leg stance (which occurs with every step during gait). Weakness produces a Trendelenburg sign — the contralateral pelvis drops during single-leg stance. The compensatory Trendelenburg (lateral trunk lean over the weak side) redistributes the center of gravity but increases compressive loading on the lumbar spine and ipsilateral SI joint.
• Gluteus medius weakness is a root cause of multiple downstream compensations: piriformis overactivity (compensating as a hip stabilizer), TFL overactivity (compensating as a hip abductor), contralateral QL tightness (hiking the dropping pelvis), and increased femoral internal rotation (contributing to knee and ankle dysfunction).

• When you find a client with piriformis syndrome that does not resolve with direct piriformis treatment, test gluteus medius strength. In the majority of cases, piriformis is overworking because gluteus medius is not doing its job as a hip stabilizer. Strengthen gluteus medius and the piriformis calms down on its own.