Proprioceptive muscle tendon stimulation reduces symptoms in primary orthostatic tremor

Introduction Primary orthostatic tremor (OT) is characterized by high-frequency lower limb muscle contractions and a disabling sense of unsteadiness while standing. To date, therapeutic options for OT are limited. Here, we examined the effects of proprioceptive leg muscle stimulation via muscle tend...

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Bibliographic Details
Published in:Journal of neurology 2018-07, Vol.265 (7), p.1666-1670
Main Authors: Wuehr, M., Schlick, C., Möhwald, K., Schniepp, R.
Format: Article
Language:English
Subjects:
Balance
Electromyography
Leg
Legs
Medicine
Medicine & Public Health
Muscles
Neurology
Neuroradiology
Neurosciences
Original Communication
Posture
Proprioception
Sensory neurons
Tremor
Tremor (Muscular contraction)
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Summary:Introduction Primary orthostatic tremor (OT) is characterized by high-frequency lower limb muscle contractions and a disabling sense of unsteadiness while standing. To date, therapeutic options for OT are limited. Here, we examined the effects of proprioceptive leg muscle stimulation via muscle tendon vibration (MTV) on tremor and balance control in patients with primary OT. Methods Tremor in nine patients with primary OT was examined during four conditions: standing (1), standing with MTV on the bilateral soleus muscles (2), lying (3), and lying with MTV (4). Tremor characteristics were assessed by frequency domain analysis of surface EMG recordings from four leg muscles. Body sway was analyzed using posturographic recordings. Results During standing, all patients showed a coherent high-frequency tremor in leg muscles and body sway that was absent during lying ( p  
ISSN:0340-5354
1432-1459
DOI:10.1007/s00415-018-8902-z