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Does postural instability affect the initiation of human gait?
- Source :
-
Neuroscience letters [Neurosci Lett] 2002 May 03; Vol. 323 (3), pp. 167-70. - Publication Year :
- 2002
-
Abstract
- During gait initiation (GI), decoupling of the center of mass and center of pressure allows the center of mass to fall forwards. Subjects initiated gait rapidly before and after tibial nerve block of the tibial nerve. Static single limb stability, stance limb ground reaction forces, electromyogram and temporal data were measured. It was hypothesized that postural stability would decrease post-block and that this would affect the kinetic and temporal properties of GI. Subjects had significantly decreased postural stability post-block and changes in normal gait kinetics, however, no changes were noted in ground reaction forces or relative temporal data of the GI task. The finding that GI was unaffected by diminished single leg postural instability suggests that GI is a pre-programmed task.
- Subjects :
- Adaptation, Physiological drug effects
Adaptation, Physiological physiology
Anesthetics, Local pharmacology
Central Nervous System drug effects
Electromyography
Feedback drug effects
Feedback physiology
Gait drug effects
Humans
Lidocaine pharmacology
Nerve Block
Postural Balance drug effects
Proprioception drug effects
Proprioception physiology
Tibial Nerve drug effects
Tibial Nerve physiology
Touch drug effects
Touch physiology
Weight-Bearing physiology
Central Nervous System physiology
Gait physiology
Muscle Contraction physiology
Muscle, Skeletal innervation
Muscle, Skeletal physiology
Postural Balance physiology
Posture physiology
Subjects
Details
- Language :
- English
- ISSN :
- 0304-3940
- Volume :
- 323
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Neuroscience letters
- Publication Type :
- Academic Journal
- Accession number :
- 11959411
- Full Text :
- https://doi.org/10.1016/s0304-3940(02)00158-1