The ideal golf swing is as finely tuned a machine as any high-performance sports car. From knees to hips, back and shoulders, everything must be in proper working order to achieve full potential. Nowhere is this more important than on the Professional Golfers’ Association (PGA) Tour, where fame, fortune, legacy and even livelihood hinge on being able to achieve flawless form. So who do tour pros rely on to keep their bodies fit, healthy and biomechanically sound? Physical therapists, the body-movement experts.