Influence of snow shovel shaft configuration on lumbosacral biomechanics during a load-lifting task
3D L5/S1 angular impulses were measured during a simulated snow shovelling task with two shovel designs. The two designs compared were a bent-shaft shovel and a straight-shaft shovel. L5/S1 extension angular impulses were lower in the bent-shaft condition. This occurred due to reduced extension moment duration, reduced extension moment magnitude and reduced upper body flexion.
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