Why athletic injuries are usually mobility deficits in disguise
When a hip can't extend through full range, the lumbar spine extends instead — and the lumbar spine is built for stability, not for repetitive motion. After enough reps, the segment that was compensating becomes the segment that's symptomatic. The hamstring strain, the low back tweak, the shoulder impingement — most of them trace back to a joint somewhere else that quietly stopped moving six months ago.




