To assess the rationale of advocating the squat as opposed to the stoop technique, biomechanical studies comparing the two were reviewed. With the exception of some specific lifting tasks, net moments and compression forces were estimated to be equal or higher in squat lifting. Shear force and spinal bending moments appeared lower in squat lifting. Net moments and compression forces probably can cause injury, whereas the other load components remain below injury threshold. In conclusion, the literature does not provide support for advocating squat lifting.
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