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Geste antagoniste effects on motor performance in dystonia—a kinematic study


Newby, R and Muhamed, S and Alty, J and Cosgrove, J and Jamieson, S and Smith, S and Kempster, P, Geste antagoniste effects on motor performance in dystonia a kinematic study, Movement Disorders Clinical Practice, 9, (6) pp. 759-764. ISSN 0885-3185 (2022) [Refereed Article]

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© 2022 The Authors. Movement Disorders Clinical Practice published by Wiley Periodicals LLC. on behalf of International Parkinson and Movement Disorder Society. This is an open access article under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License, (, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

DOI: doi:10.1002/mdc3.13505



The kinematic effects of gestes have not previously been studied. The mechanism(s) by which these sensory tricks modify dystonic movement is not well understood.


A kinematic investigation of the geste phenomenon in patients with dystonia.


Twenty-three patients with dystonia associated with a geste were studied. Twenty-nine healthy controls also participated. Fifteen seconds of finger tapping was recorded by electromagnetic sensors, and the task was repeated with geste. Separable motor components were extracted using a custom-written MATLAB script. Performance with and without geste was compared using Wilcoxon signed ranks testing.


Speed and fluency of finger tapping is impaired in dystonia. When patients executed their geste, speed of movement (amplitude x frequency) increased (p<0.0001), and halts decreased (p = 0.007).


That gestes improve not only dystonic muscle contraction but also the efficiency of voluntary movement suggests a broad influence at the premotor control stage.

Item Details

Item Type:Refereed Article
Keywords:Dystonia, neurology, neurophysiology, movement disorders
Research Division:Biomedical and Clinical Sciences
Research Group:Neurosciences
Research Field:Neurology and neuromuscular diseases
Objective Division:Health
Objective Group:Clinical health
Objective Field:Diagnosis of human diseases and conditions
UTAS Author:Alty, J (Associate Professor Jane Alty)
ID Code:150455
Year Published:2022
Web of Science® Times Cited:1
Deposited By:Wicking Dementia Research and Education Centre
Deposited On:2022-06-15
Last Modified:2023-01-12
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