Manual Material Handling & Spinal Compression: A Pilot Study

Manual materials handling (MMH) is a common cause of low back injury and low back pain (LBP). Low back injury is a major challenge in many industries and consumes the largest portion of the workers’ compensation dollar. Low back pain is responsible for more lost workdays and disability than any other musculoskeletal disorder (MSD). Many industries require employees to engage in MMH that cause significant risk to their spinal health. This study investigated the application of two different lifting techniques. Spinal compression was estimated in four subjects lifting a 35 lbs load using two different lifting techniques. Finding revealed average compressive forces between 849 lbs/in2 and 1023 lbs/in2.  Findings reveals a significant reduction (p-value < 0.05) in spinal compression using the Powerlift™ method compared to the traditional squat lift. Findings suggest that different lifting methods may reduce or increase stresses to the back. Investigators advocate for the adoption of Poweflift™ where possible to reduce risk for back injuries.