[Torsion effects of shoe soles. A biomechanical viewpoint].

Requirements concerning the location of the top of shoe-sole rolls are formulated on the basis of the physiological sequence of movements in the step, the aim being to ensure a functionally correct sequence of movements, corresponding to the condition to be treated. Special attention should be paid to adverse torsion effects caused by inappropriate positioning of the rolls, since the torsion has negative effect on the gait pattern.