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ORLANDO, FLA. -- A standardized mechanical assessment of patients with low back pain--whether acute or chronic--identifies a large subgroup who will obtain an excellent response when prescribed exercises matched to the directional nature of their pain, Ronald G. Donelson, M.D., reported at Wonca 2004, the conference of the World Organization of Family Doctors.
National guidelines state that physical activity is good for low back pain, and that there is insufficient evidence to recommend any specific exercises for management of this common and costly problem.
That's no longer the case. A new multicenter randomized controlled trial demonstrates that in most cases the specific type of exercise prescribed has a great impact on patient outcome, according to Dr. Donelson of Hanover, N.H.
New Zealand physical therapist Robin A. McKenzie developed a method for subgrouping patients with low back pain (LBP) by having them repeatedly perform movements involving lumbar spinal flexion, extension, and lateral side glide. In roughly three-quarters of cases this assessment identifies a single direction of movement--called the patient's directional preference--that immediately improves the pain and/or centralizes it by moving the pain from the leg to the back, with the relief persisting after testing is finished.
The most common directional preference is extension, followed by lateral, and flexion. The minority of patients without a directional preference have a high likelihood of a prolonged episode or nonrecovery.
Dr. Donelson reported on an 11-center trial without commercial sponsorship in which 12 physical therapists who were formally trained and credentialed in mechanical diagnosis and treatment assessed 312 patients with LBP. Overall, 74% had a directional preference to their pain; they ...
Source: HighBeam Research, Directional exercise helps to relieve low back pain.(Clinical Rounds)