Effect of a Wrist Harmonic Liquid Tremor Absorber-Damping on the Upper Extremity Essential Tremor.
Background: Essential tremor (ET) is a common type of tremor. Previous research has shown that wearable orthoses and biomechanical loading methods can suppress tremors.
Objective: This study aims to investigate the effect of a harmonic liquid dampener on upper extremity ET.
Methods: The study involved 9 women and 5 men from a neurology outpatient clinic. A 285-g liquid-based harmonic dampening wristband was used. Tremors were recorded from the wrist along the x-y-z axes using a vibrometer, and the Bain-Findley Rating Scale (BFRS) was employed for assessment.
Results: BFRS scores significantly improved after the wristband was used (mean difference 35.64, P = 0.001, Cohen's d effect size =2.979). The tremor amplitude decreased significantly along the x-axis (Cohen's d: 1.35, P = 0.001), y-axis (Cohen's d: 3.232, P = 0.001), and z-axis (Cohen's d: 3.321, P = 0.001).
期刊介绍:
Movement Disorders publishes a variety of content types including Reviews, Viewpoints, Full Length Articles, Historical Reports, Brief Reports, and Letters. The journal considers original manuscripts on topics related to the diagnosis, therapeutics, pharmacology, biochemistry, physiology, etiology, genetics, and epidemiology of movement disorders. Appropriate topics include Parkinsonism, Chorea, Tremors, Dystonia, Myoclonus, Tics, Tardive Dyskinesia, Spasticity, and Ataxia.