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Gluteus Medius

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Introduction

The gluteus medius is fan-shaped muscle located in the lateral hip, found on the upper pelvis beneath the iliac crest.[1] This muscle plays a critical role in hip stability and pelvic control during weight-bearing activities and gait.[2]

This 2-minute video provides a summary of the gluteus medius muscle.

[3]

Relevant Anatomy

Origin

Gluteus Medius
Gluteus Medius

These unite to form a flattened tendon that inserts onto the superolateral surface of the greater trochanter. The trochanteric bursa sits between the tendon and the bone.[4]

The gluteus medius originates from the lateral iliac surface between the anterior and posterior gluteal lines, around the sciatic notch.[1][4][5]

Insertion

Different routes are taken by muscle fibres:[4]

  • Anterior fibres pass posteroinferiorly
  • Intermediate fibres pass inferiorly
  • Posterior fibres travel antero-inferiorly

Nerve Supply

The gluteus medius is supplied by the superior gluteal nerve (root L4, L5 and S1). Cutaneous supply is mainly provided by L1 and L2.[2]

Blood Supply

Arterial supply to the gluteus medius is the superior gluteal artery (main) via the internal foramen above piriformis; it separates into superficial and deep branches.[2]

Venous drainage is via the internal and common iliac veins, which receive the superior gluteal vein, which parallels the artery.[2]

Function

Functions of the gluteus medius include:

  • A primary hip abductor, also assisting in flexion and medial rotation.[6]
  • At 90° hip flexion, its ability to function as a medial rotator increases approximately eight times.[4]
  • During weight-bearing, gluteus medius stabilises the pelvis in the frontal plane as part of a lateral fascial sling with the ipsilateral tensor fasciae latae and contralateral quadratus lumborum.[1]
  • During gait and single-leg activities, it prevents contralateral pelvic drop when the opposite limb leaves the ground, enabling forward limb swing.[4][7] This function is essential for normal walking, running, and weight-bearing mechanics.[4]

Clinical Relevance

The anterosuperior third of gluteus medius remains uncovered by the gluteus maximus, forming the safe zone for intramuscular buttock injections via the dorsogluteal route.[1] Using the upper outer quadrant method, clinicians divide the buttock into four quadrants and identify the injection site in the upper outer quadrant to avoid complications when administering intramuscular medications.[8]

Gluteus medius is classified as a phasic muscle with an inherent tendency toward inhibition.[2][9] This classification stems from foundational work by Czech neurophysiotherapist Vladimir Janda, whose research on muscle imbalance patterns (distinguishing between phasic muscles prone to inhibition and tonic muscles prone to tightness) became fundamental to rehabilitation science.[5][9] As mentioned by Vladimir Janda, gluteus medius tends to be inhibited in our body for many reasons;[6] such as in

  • Prolonged weight shifting onto one limb with compensatory pelvic sway
  • Side-lying sleep without inter-knee pillow support
  • Prolonged crossed-leg sitting
  • Hip adductor tightness (reciprocal inhibition)

Gluteus medius weakness is associated with hemiplegic gait post-stroke, Trendelenburg gait, Ilio-tibial band (ITB) syndrome, Patellofemoral pain syndrome (PFPS), Anterior cruciate ligament (ACL).[6][7][2]

When inhibited, compensatory overactivity develops in the ipsilateral tensor fasciae latae and contralateral quadratus lumborum (tonic muscles prone to tightness).[9] This compensation perpetuates dysfunctional movement patterns and can contribute to musculoskeletal pathology.[9]

In athletes, gluteus medius dysfunction increases risk of excessive knee internal rotation during running and jumping, contributing to ACL injury, patellofemoral pain, and overuse syndromes.[2]

Assessment

Palpation

Locate the bulk of gluteus medius at two finger-widths below the iliac crest midpoint, with the contraction of the muscle palpable during single-leg stance.[1]

Strength

Assessing strength of gluteus medius is done via:

  • Hip abduction in side-lying
  • Double- or single-leg stance test. A level pelvis during a 30-second single-leg stance indicates adequate function.[5]
  • Adding an upper body movement to the single-leg stance test
  • Assessment of functional tasks that require single-leg stance such as step-downs, walking or running.[7]

Length

Assessing the length of the gluteus medius is best with the muscle on stretch (hip adduction and flexion).[10]

Management of Gluteus Medius Dysfunction

Management requires identification and modification of causative factors (postural habits, daily movement patterns), followed by progressive activation and strengthening.[1]

A progressive programme based on Presswood and colleagues comprises three stages:[7]

Stage 1: Non-weight-bearing and basic weight-bearing exercises (clamshell, side-lying hip abduction, standing hip abduction, single-leg balance); Progress when the patient maintains pelvic level during 30-second single-leg stance. Progression can vary based on the patient's strength.

Stage 2: Progressive weight-bearing exercises with increasing challenge through horizontal centre-of-gravity translation (stepping, hopping), base-of-support reduction, centre-of-gravity elevation (arm movement, weights), and unstable surfaces.

Stage 3: Sport-specific and functional movements aligned to patient goals.

Exercise Activation Levels for Gluteus Medius

Many exercises help activate the gluteus medius, and each activates it to a different percentage, as shown by EMG activity during maximum voluntary isometric contraction (MVIC). See table below: [7]

The following activation percentages are derived from Reiman et al. (2012), a systematic literature review synthesising EMG studies of gluteus medius activation during rehabilitation exercises as shown in the table below:[6]

Level of Gluteus medius activation Types of exercises
Moderate-level activation (21–40% MVIC)
  1. Prone bridge plank (27% ± 11% MVIC)
  2. Bridging on stable surface (28% ± 17% MVIC)
  3. Lunge-neutral trunk position (34% MVIC)
  4. Unilateral mini-squat (36% ± 17% MVIC)
  5. Retro step-up (37% ± 18% MVIC)
  6. Clam with 60° hip flexion (38% ± 29% MVIC)
  7. Sideways lunge (39% ± 19& MVIC)
  8. Clam with 30° hip flexion (40% ± 38% MVIC)
High-level activation (41–60% MVIC)
  1. Lateral step-up (41% MVIC)
  2. Quadruped with contralateral arm and leg lift (42% ± 17% MVIC)
  3. Forward step-up (44% ± 17% MVIC)
  4. Unilateral bridge (47% ± 24% MVIC)
  5. Transverse lunge (48% ± 21% MVIC)
  6. Wall squat (52% ± 22% MVIC)
  7. Side-lying hip abduction (56% MVIC)
  8. Pelvic drop (57% ± 32% MVIC)
  9. Single-limb deadlift (58% ± 22% MVIC)
Very high-level activation (>60% MVIC)
  1. Single-limb squat (64% ± 24% MVIC)
  2. Side-bridge to neutral spine position (74% ± 30% MVIC).
These videos explain the gluteus medius activation and strengthening exercise techniques
[11]
[12]
[13]

Summary

The gluteus medius is the primary hip abductor and key stabiliser of pelvic control during weight-bearing and gait. It is prone to inhibition from postural habits and is associated with Trendelenburg gait, patellofemoral pain, and lower-limb injury. Assessment for gluteus medius primarily uses single-leg stance testing and functional evaluation. Progressive rehabilitation through weight-bearing and sport-specific stages, guided by electromyography evidence of exercise intensity, restores function and prevents injury.

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Palastanga N, Soames R. This muscle plays a critical role in hip stability and pelvic control during weight-bearing activities and gait.Anatomy and Human Movement: Structure and Function. 6th ed. London: Churchill Livingstone; 2012.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Standring S, Gray H. Gray's Anatomy: The Anatomical Basis of Clinical Practice. 42nd ed. London: Elsevier; 2020.
  3. ↑ ClinicalPhysio. Gluteus Medius Anatomy. Available from: http://www.youtube.com/watch?v=JkR0trdcmA0 [last accessed 27/9/2026]
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Neumann DA. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed. St. Louis: Elsevier Mosby; 2017.
  5. ↑ 5.0 5.1 5.2 Kendall FB, McCreary EK, Provance PG. Muscles: Testing and Function, with Posture and Pain. 5th ed. Philadelphia: Lippincott Williams and Wilkins; 2005.
  6. ↑ 6.0 6.1 6.2 6.3 Reiman MP, Bolgla LA, Loudon JK. A literature review of studies evaluating gluteus maximus and gluteus medius activation during rehabilitation exercises. Physiotherapy Theory and Practice,2012: 28(4): 257–268.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 Presswood L, Cronin J, Keogh JWL, Whatman C. Gluteus medius: applied anatomy, dysfunction, assessment, and progressive strengthening. Strength and Conditioning Journal. 2008;30(5):41-53.
  8. ↑ Ogston-Tuck S. Intramuscular injection technique: an evidence-based approach. Nursing Standard. 2014;29(4):52–59.
  9. ↑ 9.0 9.1 9.2 9.3 Barton CJ, Lack S, Malliaras P, Morrissey D. Gluteal muscle activity and patellofemoral pain syndrome: a systematic review. Br J Sports Med. 2013;47(4):207-14.
  10. ↑ Carroll LA, Kivlan BR, Martin RL, Phelps AL, Carcia CR. The Single Leg Squat Test: A "Top-Down" or "Bottom-Up" Functional Performance Test? Int J Sports Phys Ther. 2021;16(2):360-370.
  11. ↑ Rubin Sport and Rehab. Gluteus Medius Activation. Available from: http://www.youtube.com/watch?v=lK6t07Qy8kc[last accessed 27/9/2026]
  12. ↑ Physio REHAB. 3 of the best exercises to switch on lazy glutes | Feat. Tim Keeley | No. 21 | Physio REHAB. Available from: http://www.youtube.com/watch?v=pRKvszxpSSs[last accessed 27/9/2026]
  13. ↑ Physio REHAB. Daily Rehab #4 - Glute release + hip mobility | Feat. Tim Keeley | No.117 | Physio REHAB. Available from: http://www.youtube.com/watch?v=NSlgA4ts0RQ[last accessed 27/9/2026]
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