Uploaded August 2026 | Updated September 2026, 2 weeks ago

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By understanding biomechanics, you can squeeze every rep for maximum payoff. A tiny torso adjustment changes which glute fibers work hardest:

🔹 Upright torso
The gluteus medius is the primary mover, while the gluteus maximus assists.

🔹 Backward lean
The gluteus medius remains the primary mover, with minimal contribution from the gluteus maximus.

🔹 Forward lean
The upper fibers of the gluteus maximus work alongside the gluteus medius as the main force generators.

⚡ Takeaway: Leaning forward during seated hip abduction increases the contribution of the gluteus maximus.

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