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The margin of stability (MoS) and related stability components during unperturbed and perturbed walking illustrated with box plots (median, 1st and 3st quartile and whiskers) of all analysed participants for control condition (CON), head-mounted display (HMD) and hand-held display (HHD). (A) MoS at touchdown (TD) of the perturbed step and at touchdown of the first recovery step; (B) extrapolated centre of mass (XCoM) and base of support (BoS) at TD of the first recovery step.
