Abstract
The aim of the present study was to investigate the role of the human cerebellum in postural adaptation for changes in the width of the support surface following backward translations. Standing on a flat surface, healthy subjects usually activate dorsal and distal leg muscles in response to backward translations ('ankle'-strategy). Standing on a small beam, ventral and proximal leg muscles are activated more frequently ('hip'-strategy). 'Ankle'-and 'hip'-strategies are the extremes of a continuum of possible postural reflex strategies. A total of 6 patients with isolated lesions of the cerebellum and 6 sexy-and age-matched controls were tested. Both control and cerebellar subjects changed postural strategies with changes in the width of the support surface. Most control subjects demonstrated 'ankle'-strategies while standing on the flat surface and 'mixed'-strategies while standing on the beam. In contrast, most cerebellar subjects utilized 'mixed'-strategies while standing on the flat surface and 'hip'-strategies while standing on the narrow beam. The more frequent use of ventral and proximal muscles might reflect a compensatory mechanism for postural hypermetria in cerebellar subjects.
| Original language | German |
|---|---|
| Pages (from-to) | 289-295 |
| Number of pages | 7 |
| Journal | Klinische Neurophysiologie |
| Volume | 29 |
| Issue number | 4 |
| State | Published - 1998 |
| Externally published | Yes |
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Keywords
- Ankle strategy
- Cerebellum
- Hip strategy
- Postural reflexes
ASJC Scopus subject areas
- Clinical Neurology
Cite this
Zur bedeutung des menschlichen kleinhirns fur die anpassung posturaler reflexmuster an wechselnde breiten der standflache : 'Ankle'-und 'hip'- strategie. / Timmann, D.; Krause, U. W H; Kolb, F. P.; Mummel, P.; Horak, Fay; Diener, H. C.
In: Klinische Neurophysiologie, Vol. 29, No. 4, 1998, p. 289-295.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Zur bedeutung des menschlichen kleinhirns fur die anpassung posturaler reflexmuster an wechselnde breiten der standflache
T2 - 'Ankle'-und 'hip'- strategie
AU - Timmann, D.
AU - Krause, U. W H
AU - Kolb, F. P.
AU - Mummel, P.
AU - Horak, Fay
AU - Diener, H. C.
PY - 1998
Y1 - 1998
N2 - The aim of the present study was to investigate the role of the human cerebellum in postural adaptation for changes in the width of the support surface following backward translations. Standing on a flat surface, healthy subjects usually activate dorsal and distal leg muscles in response to backward translations ('ankle'-strategy). Standing on a small beam, ventral and proximal leg muscles are activated more frequently ('hip'-strategy). 'Ankle'-and 'hip'-strategies are the extremes of a continuum of possible postural reflex strategies. A total of 6 patients with isolated lesions of the cerebellum and 6 sexy-and age-matched controls were tested. Both control and cerebellar subjects changed postural strategies with changes in the width of the support surface. Most control subjects demonstrated 'ankle'-strategies while standing on the flat surface and 'mixed'-strategies while standing on the beam. In contrast, most cerebellar subjects utilized 'mixed'-strategies while standing on the flat surface and 'hip'-strategies while standing on the narrow beam. The more frequent use of ventral and proximal muscles might reflect a compensatory mechanism for postural hypermetria in cerebellar subjects.
AB - The aim of the present study was to investigate the role of the human cerebellum in postural adaptation for changes in the width of the support surface following backward translations. Standing on a flat surface, healthy subjects usually activate dorsal and distal leg muscles in response to backward translations ('ankle'-strategy). Standing on a small beam, ventral and proximal leg muscles are activated more frequently ('hip'-strategy). 'Ankle'-and 'hip'-strategies are the extremes of a continuum of possible postural reflex strategies. A total of 6 patients with isolated lesions of the cerebellum and 6 sexy-and age-matched controls were tested. Both control and cerebellar subjects changed postural strategies with changes in the width of the support surface. Most control subjects demonstrated 'ankle'-strategies while standing on the flat surface and 'mixed'-strategies while standing on the beam. In contrast, most cerebellar subjects utilized 'mixed'-strategies while standing on the flat surface and 'hip'-strategies while standing on the narrow beam. The more frequent use of ventral and proximal muscles might reflect a compensatory mechanism for postural hypermetria in cerebellar subjects.
KW - Ankle strategy
KW - Cerebellum
KW - Hip strategy
KW - Postural reflexes
UR - http://www.scopus.com/inward/record.url?scp=0032427517&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032427517&partnerID=8YFLogxK
M3 - Article
VL - 29
SP - 289
EP - 295
JO - Klinische Neurophysiologie
JF - Klinische Neurophysiologie
SN - 1434-0275
IS - 4
ER -