Fig. 1

(a) The wearable vibrotactile Bidirectional Interface and its modules. (b) The two biofeedback strategies. Abbreviations: CoP, Center of pressure; vGRF, vertical ground reaction force; VTs, Vibrotactile stimulus
(a) The wearable vibrotactile Bidirectional Interface and its modules. (b) The two biofeedback strategies. Abbreviations: CoP, Center of pressure; vGRF, vertical ground reaction force; VTs, Vibrotactile stimulus