The ever-increasing interest in the spine and its pathology is not surprising. Acting as the main support of an erect posture unique in the animal kingdom, the human spine is, owing to its numerous articulations, at the same time a supple structure that can respond to the many stresses which are put on it. Constant movement is necessary to preserve its function, but regular and well is also essential. The high frequency of spinal disorders result positioned rest ing from misuse is easily explained by day-to-day reality. Among the disorders that result from misuse of the spine, herniated disk,...