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LUMBOSACRAL HYPEREXTENSION Extension hypermobility at the lumbosacral joint (L5-S1) is very common. This is one of the joint lastt that we commonly see excess motion, which is why it is one of the most common sites of degeneration. This faulty movement strategy is going to show up in deadlifts, pull-ups, overhead presses, etc. Watch the video further down if you want to see the same movement fault applied to bok deadlift. Something I have to teach in nearly every case is proper pelvic tilt, example of an idiom in literature position, bracing, and motor control to activate the glutes.