Trunk muscle activation and associated lumbar spine joint shear forces under different levels of external forward force applied to the trunk.


High anterior intervertebral shear loads could cause low back injuries and therefore the neuromuscular system may actively counteract these forces. This study investigated whether, under constant moment loading relative to L3L4, an increased externally applied forward force on the trunk results in a shift in muscle activation towards the use of muscles with… (More)


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