Fig. 2.

Gait pattern in the same patient during and after correction of chronic hyponatraemia. Patient is walking from right to left. The arrow depicts an irregular path of the centre of pressure. Tandem gait parameters were analysed with a pressure-sensitive calibrated platform that evaluates the patient's balance performance on the basis of the recorded displacement of the centre of pressure (i.e. the projection of the centre of gravity on the ground). Adapted and reprinted from [10], Copyright 2006, with permission from Elsevier.