When left hip stabilizers are insufficient, the left QL cannot properly deactivate during the loading phase of gait because it must work overtime to compensate for hip laxity, preventing the normal transition from extension to flexion that would allow the muscle to relax.

causalpending

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Unidentified Speaker — Why Does Your Left Quadratus Lumborum Hurt? [rffVhQ9JnpI]

Evidence Quote

if the left hip is so weak that you can't step stabilize the hip itself with the appropriate hip musculature that left ql is going to have to work overtime and you're still going to be an extension when you put your weight on your left leg instead of shifting into flexion so that ql can never turn off

Source

Why Does Your Left Quadratus Lumborum Hurt?Neal Hallinan
Created: 8/13/2026, 10:18:19 AM

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