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Changes in postural control in healthy elderly subjects are related to vibration sensation, vision and vestibular asymmetry

Kristinsdottir, Ella Kolbrun LU ; Fransson, Per-Anders LU and Magnusson, M. (2001) In Acta Oto-Laryngologica 121(6). p.700-706
Abstract
The aim of this study was to analyze the composition of sway in adults and "healthy" elderly people and to evaluate the influence of vibration sensation and asymmetric vestibular function on the sway pattern. Ten adults with a mean age of 37.5 years and 40 healthy senior citizens with a mean age of 74.6 years living independently in the community were studied. Vibration-induced body sway was measured on a force platform. The sway was analyzed and separated into its high and low frequency components above and below 0.1 Hz, respectively. Additionally the elderly subjects were observed for the occurrence of spontaneous gaze and head shake-induced nystagmus using infrared charge-coupled device cameras and the vibration perception in the lower... (More)
The aim of this study was to analyze the composition of sway in adults and "healthy" elderly people and to evaluate the influence of vibration sensation and asymmetric vestibular function on the sway pattern. Ten adults with a mean age of 37.5 years and 40 healthy senior citizens with a mean age of 74.6 years living independently in the community were studied. Vibration-induced body sway was measured on a force platform. The sway was analyzed and separated into its high and low frequency components above and below 0.1 Hz, respectively. Additionally the elderly subjects were observed for the occurrence of spontaneous gaze and head shake-induced nystagmus using infrared charge-coupled device cameras and the vibration perception in the lower limbs was tested with a tuning fork. Vibration perception was the major determinant for postural control in the elderly subjects. Postural control among the elderly subjects with intact vibration perception in their lower limbs was very similar to that of the adults. The elderly subjects with impaired vibration sensation had increased high frequency sway compared to adults and the elderly subjects with intact sensation. Regardless of the strong influence of vibration sensation on postural control, asymmetric vestibular function might also be a contributing factor to postural instability in the elderly. Age per se had little effect on the outcome of the tests except that the elderly subjects had diminished ability to use visual cues to reduce postural sway. We concluded that sensory status in the lower limbs is of utmost importance for postural control in the elderly. Rehabilitation programs for senior citizens should therefore include exercises to preserve recognition of body motion by the lower limbs. Exercises to facilitate vestibular compensation could be useful for elderly people with vestibular dysfunction. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Elderly, Postural, Control, Vestibular, Asymmetry
in
Acta Oto-Laryngologica
volume
121
issue
6
pages
700 - 706
publisher
Taylor & Francis
external identifiers
  • wos:000171549900007
  • scopus:0034788416
ISSN
1651-2251
DOI
10.1080/00016480152583647
language
English
LU publication?
yes
id
5689c851-6af7-47ac-ac33-4dc7b5353305 (old id 1118847)
date added to LUP
2008-07-01 15:37:06
date last changed
2018-05-29 11:41:46
@article{5689c851-6af7-47ac-ac33-4dc7b5353305,
  abstract     = {The aim of this study was to analyze the composition of sway in adults and "healthy" elderly people and to evaluate the influence of vibration sensation and asymmetric vestibular function on the sway pattern. Ten adults with a mean age of 37.5 years and 40 healthy senior citizens with a mean age of 74.6 years living independently in the community were studied. Vibration-induced body sway was measured on a force platform. The sway was analyzed and separated into its high and low frequency components above and below 0.1 Hz, respectively. Additionally the elderly subjects were observed for the occurrence of spontaneous gaze and head shake-induced nystagmus using infrared charge-coupled device cameras and the vibration perception in the lower limbs was tested with a tuning fork. Vibration perception was the major determinant for postural control in the elderly subjects. Postural control among the elderly subjects with intact vibration perception in their lower limbs was very similar to that of the adults. The elderly subjects with impaired vibration sensation had increased high frequency sway compared to adults and the elderly subjects with intact sensation. Regardless of the strong influence of vibration sensation on postural control, asymmetric vestibular function might also be a contributing factor to postural instability in the elderly. Age per se had little effect on the outcome of the tests except that the elderly subjects had diminished ability to use visual cues to reduce postural sway. We concluded that sensory status in the lower limbs is of utmost importance for postural control in the elderly. Rehabilitation programs for senior citizens should therefore include exercises to preserve recognition of body motion by the lower limbs. Exercises to facilitate vestibular compensation could be useful for elderly people with vestibular dysfunction.},
  author       = {Kristinsdottir, Ella Kolbrun and Fransson, Per-Anders and Magnusson, M.},
  issn         = {1651-2251},
  keyword      = {Elderly,Postural,Control,Vestibular,Asymmetry},
  language     = {eng},
  number       = {6},
  pages        = {700--706},
  publisher    = {Taylor & Francis},
  series       = {Acta Oto-Laryngologica},
  title        = {Changes in postural control in healthy elderly subjects are related to vibration sensation, vision and vestibular asymmetry},
  url          = {http://dx.doi.org/10.1080/00016480152583647},
  volume       = {121},
  year         = {2001},
}