Fig. 2

CoP point-to-point plot (mm). Movement in ML (X-axes, negative numbers) and AP direction (Y-axes, positive numbers) expressed in mm from the laboratory 0-point (see Fig. 1). The start of the downward phase is pointed with a red arrow, the start of the up-phase with a grey arrow, and the finish of the movement with a green arrow. For this individual, the heel markers were placed at around − 424 mm and toe markers (base of MP1) at around – 205 mm, showing that the CoP was kept in the midst of the base of support