on the left ltm is not shown the postural compliance means pcm compresses the torso u2014 in this embodiment via the drawing in of the shoulder straps u2014 to the appropriate lifting posture fig8 provides a photograph of a prototype of the embodiment of fig7 fig9 provides an exploded view of the coupling means c in the channeled slider sl of this embodiment fig1 13 show additional exemplary embodiments of the present invention all of which embody the same basic principle of coupling between lifting and the pcm via a single coupling means or multiple coupling means as discussed above as loading on the load transfer means ltm increases so too does the postural compliance exerted by the postural compliance means pcm with the coupling between the two obtained by at least one coupling means c fig1 provides a super positioning of images obtained at various stages during the lifting process of a user wearing one embodiment of the present invention as this figure shows the back remains in appropriate posture throughout lifting with a gradated change in posture during lifting to preserve the appropriate posture with regard to the change in the postural compliance enforced by the pcm this change can be linear or it.