Clinical observations with respect to progressive/ regressive traction.
The objectives of the report were to test a theory advanced by one of our patients and practiced manually in the physical therapy department: that the effects of cervical traction would be enhanced if the tractive force were to be applied incrementally instead of the usual standard method. Tests with patients indicated that the theory had considerable merit. Incremental-force (progressive/regressive) traction machines are now being manufactured to provide tissue accommodation for more effective use of spinal traction. J Orthop Sports Phys Ther 1986;7(5):261-263.
Petulla
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