WFRF:(Magnusson Rolf)
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Postural Control Adaptation during Galvanic Vestibular and Vibratory Proprioceptive Stimulation
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- Fransson, Per-Anders (author)
- Lund University,Lunds universitet,Öron-, näs- och halssjukdomar, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Otorhinolaryngology (Lund),Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Hafström, Anna (author)
- Lund University,Lunds universitet,Öron-, näs- och halssjukdomar, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Otorhinolaryngology (Lund),Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine
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- Karlberg, Mikael (author)
- Lund University,Lunds universitet,Öron-, näs- och halssjukdomar, Lund,Sektion IV,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Otorhinolaryngology (Lund),Section IV,Department of Clinical Sciences, Lund,Faculty of Medicine
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- (creator_code:org_t)
- 2003
- 2003
- English.
- In: IEEE Transactions on Biomedical Engineering. - 1558-2531. ; 50:12, s. 1310-1319
- Journal article (peer-reviewed)
Abstract
Subject headings
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- he objective for this study was to investigate whether the adaptation of postural control was similar during galvanic vestibular stimulation and during vibratory proprioceptivestimulation of the calf muscles. Healthy subjects were tested during erect stance with eyes open or closed. An analysis method designed to consider the adaptive adjustments was used to evaluate the motion dynamics and the evoked changes of posture and stimulation response.Galvanic vestibular stimulation induced primarily lateral body movements and vibratory proprioceptive stimulation induced anteroposterior movements. The lateral body sway generated by the galvanic stimulation was proportionally smaller and contained more high-frequency movements (0.1 Hz) than the anteroposterior body sway induced by the vibratory stimulation. The adaptive adjustments of the body sway to the stimulation had similar time course and magnitude during galvanic and vibratory stimulation. The perturbations induced by stimulation were gradually reduced within the same time range (15–20 s) and both kinds of stimulation induced a body leaning whose direction was dependent on stimulus. The similarities in the adjustmentpatterns suggest that postural control operates in the same way independent of the receptor systems affected by the disturbance and irrespective of whether the motion responses were induced in a lateral or anteroposterior direction.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering (hsv//eng)
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- art (subject category)
- ref (subject category)
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- Tjäder, Annika
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