In the side-lying 90/90 position, the left gluteus medius muscle should activate as a distinct point just behind the greater trochanter (hip bone prominence), differentiated from the tensor fasciae latae (TFL) which runs down the side of the bone.
factualpending
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Unidentified Speaker — The Secret To Psoas Tightness On One Side (why is no one ta… [qP1lYsMNgbg]Evidence Quote
“what should also be happening is you should feel your left gluten Mead activate that's going to be the muscle if you have this bone right here on the side of your hip it's going to be just behind that not on the bone or the or your tfl muscle which runs down the side of that bone it should be slightly behind the bone”
Created: 8/13/2026, 9:48:06 AM
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