Do we over prescribe mobility? The body does not function optimally on extremes, and yet many times there is the assumption that chasing more mobility in the squat leads to better performance. In respect to the Joint by Joint theory (Mike Boyle, Gray Cook),“optimal movement occurs with an alternating series of stable segments moving on mobile joints”. We know that when you lack mobility in a mobile joint, a stable joint becomes more mobile to compensate. The Joint by Joint Theory and the Back Squat Propose there were disturbances in this continuum during the squat; the hip flexors are locked short, ...