Abstract Summary
The study used the quantified assessment, feasible flexible region (Figure 1), to establish the relationship between the center of mass (COM) and base of support BOS). Eight subjects with MS were recruited. An 8-camera motion capture system (Vicon, UK) was used to collect their full-body kinematics via 26 reflective markers. The body COM kinematics were computed using gender-dependent segmental inertial parameters. The two components of the COM motion state were calculated relative to the rear of the BOS. Mann-Whitney rank-sum test was performed. The COM is closer to the BOS at the weak side touchdown than at the strong side. Our results indicated that PwMS indeed demonstrate side-related difference in dynamic stability control. Specifically, they are less stable at the weak side touchdown.