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Differences between body movement adaptation to calf and neck muscle vibratory proprioceptive stimulation

Gomez, S.; Patel, Mitesh LU ; Magnusson, Måns LU ; Johansson, L; Einarsson, Einar-Jon LU and Fransson, Per-Anders LU (2009) In Gait & Posture 30(1). p.93-99
Abstract
Adaptation is essential in maintaining stability during balance-challenging situations. We studied, ill standing subjects with eyes open and closed, adaptive responses of the anteroposterior head, shoulder, hip and knee movements: gastrocnemius and tibialis anterior EMG activity and anteroposterior body Posture when proprioceptive information from the neck or calf muscles underwent vibratory perturbations. After 30 s of quiet stance, vibratory stimuli were applied repeatedly for 200 s, and adaption to stimulation was analyzed in four successive 50 s periods. Repeated neck and calf vibration significantly increased linear body movement variance at all recorded sites (p < 0.001, except neck stimulation with eyes closed, EC-neck),... (More)
Adaptation is essential in maintaining stability during balance-challenging situations. We studied, ill standing subjects with eyes open and closed, adaptive responses of the anteroposterior head, shoulder, hip and knee movements: gastrocnemius and tibialis anterior EMG activity and anteroposterior body Posture when proprioceptive information from the neck or calf muscles underwent vibratory perturbations. After 30 s of quiet stance, vibratory stimuli were applied repeatedly for 200 s, and adaption to stimulation was analyzed in four successive 50 s periods. Repeated neck and calf vibration significantly increased linear body movement variance at all recorded sites (p < 0.001, except neck stimulation with eyes closed, EC-neck), increased tibialis anterior (p < 0.001, except EC-neck) and gastrocnemious muscle activity (p < 0.001). Most body movement variances and tibialis anterior EMG activity decreased significantly over time (most p-values < 0.01 or lower) and overall, the body leaning forward increased from 5.5 degrees to 6.5 degrees (p < 0.01). The characteristics of the responses were influenced by vision and site of vibration, e.g., neck vibration affected body Posture more rapidly than calf vibration. Our findings support the notion that proprioceptive perturbations have different effects in terms of nature, degree and adaptive response depending on site of vibratory proprioceptive stimulation, a factor that needs consideration in clinical investigations and design of rehabilitation programs. (C) 2009 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Postural control, Adaptation, Vibration, Proprioception, EMG activity
in
Gait & Posture
volume
30
issue
1
pages
93 - 99
publisher
Elsevier
external identifiers
  • wos:000266905000018
  • scopus:67349125869
ISSN
1879-2219
DOI
10.1016/j.gaitpost.2009.03.009
language
English
LU publication?
yes
id
6b26e673-9c2d-49ad-bbf9-c2b5b90ffb74 (old id 1442115)
date added to LUP
2009-07-27 11:19:55
date last changed
2017-01-01 06:08:23
@article{6b26e673-9c2d-49ad-bbf9-c2b5b90ffb74,
  abstract     = {Adaptation is essential in maintaining stability during balance-challenging situations. We studied, ill standing subjects with eyes open and closed, adaptive responses of the anteroposterior head, shoulder, hip and knee movements: gastrocnemius and tibialis anterior EMG activity and anteroposterior body Posture when proprioceptive information from the neck or calf muscles underwent vibratory perturbations. After 30 s of quiet stance, vibratory stimuli were applied repeatedly for 200 s, and adaption to stimulation was analyzed in four successive 50 s periods. Repeated neck and calf vibration significantly increased linear body movement variance at all recorded sites (p &lt; 0.001, except neck stimulation with eyes closed, EC-neck), increased tibialis anterior (p &lt; 0.001, except EC-neck) and gastrocnemious muscle activity (p &lt; 0.001). Most body movement variances and tibialis anterior EMG activity decreased significantly over time (most p-values &lt; 0.01 or lower) and overall, the body leaning forward increased from 5.5 degrees to 6.5 degrees (p &lt; 0.01). The characteristics of the responses were influenced by vision and site of vibration, e.g., neck vibration affected body Posture more rapidly than calf vibration. Our findings support the notion that proprioceptive perturbations have different effects in terms of nature, degree and adaptive response depending on site of vibratory proprioceptive stimulation, a factor that needs consideration in clinical investigations and design of rehabilitation programs. (C) 2009 Elsevier B.V. All rights reserved.},
  author       = {Gomez, S. and Patel, Mitesh and Magnusson, Måns and Johansson, L and Einarsson, Einar-Jon and Fransson, Per-Anders},
  issn         = {1879-2219},
  keyword      = {Postural control,Adaptation,Vibration,Proprioception,EMG activity},
  language     = {eng},
  number       = {1},
  pages        = {93--99},
  publisher    = {Elsevier},
  series       = {Gait & Posture},
  title        = {Differences between body movement adaptation to calf and neck muscle vibratory proprioceptive stimulation},
  url          = {http://dx.doi.org/10.1016/j.gaitpost.2009.03.009},
  volume       = {30},
  year         = {2009},
}