2.4.2. Force plate treadmill (Zebris Co. Ltd FDM-T)[19]

Force plate treadmill is a device with a force plate embedded in the rail floor (Fig. ​(Fig.1b).1b). When the subject stands on the treadmill, foot pressure and COP are measured. Then, variables such as lateral symmetry, COP velocity and area are calculated by a specific program (Zebris FDM software, version 1.10) (Fig. ​(Fig.3,3, Table ​Table22).

(A) The yellow ellipse and black line represent the area and path of Center of Pressure (COP), respectively. (B) Enlarged view of the change of COP. (C) COP movement during walking.

Variables obtained by treadmill: COP area, COP velocity and lateral symmetry.