Chen P.-Y.Jheng Y.-C.Wang C.-C.Huang S.-E.TING-HUA YANGPO-CHENG HSUKuo C.-H.Lin Y.-Y.Lai W.-Y.Kao C.-L.2022-02-102022-02-1020212045-2322https://www.scopus.com/inward/record.uri?eid=2-s2.0-85101256134&doi=10.1038%2fs41598-021-83206-z&partnerID=40&md5=bc1f97b254bd9e0cf0b394c77eea2237https://scholars.lib.ntu.edu.tw/handle/123456789/594027A single-blind study to investigate the effects of noisy galvanic vestibular stimulation (nGVS) in straight walking and 2?Hz head yaw walking for healthy and bilateral vestibular hypofunction (BVH) participants in light and dark conditions. The optimal stimulation intensity for each participant was determined by calculating standing stability on a force plate while randomly applying six graded nGVS intensities (0–1000??A). The chest–pelvic (C/P) ratio and lateral deviation of the center of mass (COM) were measured by motion capture during straight and 2?Hz head yaw walking in light and dark conditions. Participants were blinded to nGVS served randomly and imperceivably. Ten BVH patients and 16 healthy participants completed all trials. In the light condition, the COM lateral deviation significantly decreased only in straight walking (p = 0.037) with nGVS for the BVH. In the dark condition, both healthy (p = 0.026) and BVH (p = 0.017) exhibited decreased lateral deviation during nGVS. The C/P ratio decreased significantly in BVH for 2?Hz head yaw walking with nGVS (p = 0.005) in light conditions. This study demonstrated that nGVS effectively reduced walking deviations, especially in visual deprived condition for the BVH. Applying nGVS with different head rotation frequencies and light exposure levels may accelerate the rehabilitation process for patients with BVH. Clinical Trial Registration This clinical trial was prospectively registered at www.clinicaltrials.gov with the Unique identifier: NCT03554941. Date of registration: (13/06/2018). ? 2021, The Author(s).[SDGs]SDG3adult; aged; body equilibrium; electrostimulation; female; gait; human; male; middle aged; motor activity; noise; pathophysiology; psychomotor performance; sensory deprivation; vestibular labyrinth; vision; walking; Adult; Aged; Electric Stimulation; Female; Gait; Humans; Male; Middle Aged; Motor Activity; Noise; Postural Balance; Psychomotor Performance; Sensory Deprivation; Vestibule, Labyrinth; Vision, Ocular; Walkingjournal article10.1038/s41598-021-83206-z336085682-s2.0-85101256134