the effect of the body mechanic behaviors on the low back pain

background & aim : low back pain (lbp) has developed as a major public health problem in the western industrialized societies, and the socio-economic burden of this problem has a huge dimension. the aim of this study was to investigate the effect of body mechanics behavior on lbp of workers.| methods & materials : descriptive study includes convenience sample of 290 workers who work at car production industry. the research data were collected using: (1) the worker’s sociodemographic data form, (2) the body mechanics behaviors form, and (3) oswestry disability index (odi) by the researchers. results : about 90% of the workers are male, 74.8% of them are married, and 36.9% of them are high school graduates. in about 48.3% of the workers the pain recurrence was very mild, in 24.8% of them was moderate, and in 10.3% of them was mild and did not varied much. a significant difference has been determined between odi classification and paying attention to the position of spine, while lifting something (p < 0.01), paying attention to the position of head, shoulder and back, while walking (p < 0.05), paying attention to suitable sitting position (p < 0.05). conclusion : workers lbp complaints varied. complaints were found “minimally disability” to “crippled” on odi classification. it is clear that body mechanic behaviors of the workers have an influence on odi.