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Gluteus medius: why it keeps your pelvis level

The gluteus medius (the glute on the side of your hip) is a hip stabiliser. Its main job is to keep your pelvis level every time one foot leaves the ground. Training it as if it were for stepping sideways misses the point.

Educational content only; this is not medical advice.

Why we do not train it for crabs

We do not need to move our legs out to the side much in daily life. Hip abduction, lifting the leg away from the midline, is not how we live. What we need all day is a pelvis that stays level when we walk, climb stairs or stand on one leg.

What it actually does

The gluteus medius fires every time one foot leaves the ground, on the side of the leg that is staying down. Step onto your right leg, and your right gluteus medius keeps your pelvis level. If it does not fire, the pelvis drops on the unsupported side.

The lunge seen from behind, with the gluteus medius highlighted in orange and the pelvis level
Our 3D tool: the gluteus medius, in orange, on both hips.

One muscle, two views

Standing hip abduction and holding the pelvis level while you walk are the same action. In one, the leg moves relative to the pelvis. In the other, the pelvis moves relative to the leg. Same muscle, same contraction. You can try it on your own body: lift your leg to the side, then stand on that leg and feel the same muscle work to hold your hips level.

What a weak one looks like

In a lunge, the pelvis drops or shifts to one side. On the bungee, the hip sinks on one side. When walking, the hips sway from side to side more than they should.

Training it

There is no cue that fixes a strength problem. Add load and do hip abduction. If someone's pelvis drops, the answer is not another instruction. It is strength. The gluteus medius also rotates the leg outward, which is why the bungee rotation recruits it. Under it sits a smaller muscle, the gluteus minimus, that helps with abduction and fine pelvic control.

Try this

Stand on one leg in front of a mirror for 20 seconds. Watch your pelvis. Switch legs. If the two sides are different, start with the weaker one.

Questions people ask

What does the gluteus medius do?

It stabilises the hip. It keeps the pelvis level whenever one foot is off the ground.

Do I need side leg raises?

Standing hip abduction trains the same muscle that keeps your pelvis level, so it has a place, but the reason is stability, not stepping sideways.

How do I know if mine is weak?

In a lunge your pelvis drops or shifts, on the bungee a hip sinks, or your hips sway a lot when you walk.

Can I fix it with a cue?

Usually not. Strength problems are trained with load, not cued.

Written by Nelly Ilyasova, Lagree Global Master Trainer. Source: Nelly's Functional Anatomy & Physiology of Lagree course.

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