OBJECTIVEThis paper discusses the necessary factors keeping normal spine curve and body pressure uniform distribution in sitting posture based on analysis sitting posture of low back pain and long time sitting persons. The purpose is to correct the sitting posture and prevention low back pain by changing the curves of the chair and material.

METHODS16 patients with low back pain were equally divided into research group and control group. The patients in research group accepted the rehabilitation chair, and other patients in control group accepted the chair same to before. JOA score were used as effect measures in both groups.

RESULTSThe differences were statistically significant (P < 0.005) comparison of control group after 6 months.

CONCLUSIONSThe rehabilitation chair is in accord with the body biomechanics, and has significant meaning for preventing low back pain.