ARTHRITIS & JOINT PLAY
Professor John McMennell, orthopaedic surgeon, was the discoverer of a passive movement called joint play, a shock-absorbing "spring" or "give" in the joints. The detection of joint play requires a high degree oftraining and skill. His research indicated loss of joint play starved the joint of nutrition, allowing arthritis. He found that exercise failed to reverse joint play loss, because joint play is not produced by muscles. Manipulation was found consistently effective in joint play restoration, suggesting manipulation may prevent, and even reverse, arthritis. Pain was found to be because of joint play loss - not the arthritis itself.