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Head motion predictability explains phase-and speed-dependent suppression of vestibular balance control during walking

  • Methods: Body sway was analyzed by measuring the center of pressure (CoP) in 10 healthy participants on a pressure-sensitive treadmill during standing and walking at 0.4 or 0.8 m/s. Continuous SVS (0–25 Hz; peak amplitude at±4.5 mA) was delivered by a bipolar binaural electrode configuration over the mastoid processes to evoke postural responses in the roll plane. Time-dependent coherence between SVS and medio-lateral body sway was analyzed to examine the dynamic impact of vestibular cues during locomotion. HMP was estimated using a previously established model (MacNeilage and Glasauer, 2017). Results: SVS-CoP coherence decreased from standing to slow walking and further decreased with increasing locomotor speed (p< 0.001). Correspondingly, HMP increased with faster locomotion (p= 0.001). SVS-CoP coherence depended on the gait cycle phase with two distinct peaks occurring at 25 …

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Author: Haike Dietrich, F. Heidger, Roman Schniepp, Paul R. MacNeilage, Stefan GlasauerORCiD, Max Wühr
DOI:https://doi.org/10.1016/j.clinph.2019.12.083
Title of the source (German):Elsevier
Publisher:Elsevier
Document Type:Conference publication peer-reviewed
Language:English
Year of publication:2020
Volume/Year:131
Issue number:4
Edition:1.
First Page:e219
Last Page:e220
Faculty/Chair:Fakultät 1 MINT - Mathematik, Informatik, Physik, Elektro- und Informationstechnik / Institut für Medizintechnologie
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