Table 1. Mean ± standard deviations values for the parameters computed in the four experimental conditions.

FW (BW) stands for forward (backward) walking and S0 (S+) for no GVS (GVS on).

	FWS0	FWS+	BWS0	BWS+
T (s)	1.12 ± 0.07	1.11 ± 0.17	1.51 ± 0.16	1.55 ± 0.17
CVT	0.020 ± 0.007	0.017 ± 0.006	0.069 ± 0.018	0.063 ± 0.020
w (s)	0.104 ± 0.029	0.098 ± 0.027	0.245 ± 0.065	0.244 ± 0.065
θ0 (°)	21.3 ± 1.5	21.2 ± 1.4	14.2 ± 1.9	14.5 ± 1.8
α	0.725 ± 0.062	0.726 ± 0.048	0.757 ± 0.060	0.716 ± 0.064
γ	0.507 ± 0.216	0.500 ± 0.167	0.655 ± 0.194	0.617 ± 0.202
D	1.72 ± 0.12	1.66 ± 0.11	1.62 ± 0.10	1.65 ± 0.11