We examine the effects of white noise galvanic vestibular stimulation (GVS) on the walking performance in healthy subjects.

We demonstrate that during walking a considerable amount of vestibular inputs is below vestibular detection thresholds.

Noisy GVS, which is thought to enhance detection of subthreshold vestibular inputs, effectively improves locomotion function.

Noisy GVS predominantly improves characteristics of the walking pattern, which are linked to dynamic walking stability.

Noisy GVS improves locomotion function in a speed-dependent manner predominately during slow walking modes.