Research on the standardization and clinical application of lateral supine rotational distraction technique

INTERVENTION: Lateral Position Rotation and Pulling Manipulation Group:Lateral Position Rotation Pulling Manipulation;Traditional lumbar oblique pull method group:Traditional lumbar oblique pull method; CONDITION: low back pain PRIMARY OUTCOME: visual analogue scale;Oswestry disability index;Japanese Orthopaedic Association Scores; SECONDARY OUTCOME: the MOS item short from health survey, SF‐3; INCLUSION CRITERIA: ? Meet the diagnostic criteria for low back pain in traditional Chinese medicine; ? Age between 18 and 70 years old, regardless of gender; ? VAS score above 6 points; ? Agree and sign the CRF informed consent for this study; ? Can accept this method of treatment; Not treated with other therapeutic methods within one month.