Application of the

Lumbar Motion MonitorLumbar Motion Monitor

In Risk Assessment of

Occupational Low Back DisordersOccupational Low Back DisordersProvided By:

Hamed NadriIndustrial hygienist( Shahid Beheshti University of Medical Sciences

LBDs affect an estimated 80% of the population during their working career (Andersson (1997)LBDs are the prime reason for activity limitation for those under 45 years of age. (NCHS 1977) LBDs cost society up to 100 billion dollars annually (Cats- Baril 1996)

Two types of forces are typically imposed on the spine

Biomechanical logic

Personal Factors

Psychosocial Factors

Job dissatisfactionMonotony of worklimited job controllack of social support

Lumbar Motion MonitorLift RateAverage Twisting VelocityMaximum MomentMaximum Sagittal FlexionMaximum Lateral Velocity

Assessing LBD Risk from Three Employees Performing the Frozen Packager Job