Related Experiment Video
Updated: May 2, 2026

The Impact of Motor Task Conditions on Goal-Directed Arm Reaching Kinematics and Trunk Compensation in Chronic Stroke Survivors
Published on: May 2, 2021
Coherence of coactivation and acceleration in task-specific primary bowing tremor
André Lee1, Kenta Tominaga, Shinichi Furuya
1Institute for Music Physiology and Musicians' Medicine, Hannover University of Music, Drama and Media, Emmichplatz 1, 30175, Hannover, Germany, andre.lee@hmtm-hannover.de.
Abstract:
Coherences between coactivation of wrist antagonist muscles and movement fluctuation were assessed in four violinists with a task-specific tremor and four age-matched healthy violinists using electromyography and accelerometer. We found coherence between individual muscular activation and tremor only in patients at a frequency range of 3-8 Hz. The finding corroborates the notion that primary bowing tremor emerges mainly due to central neurogenic contributions via motor-unit synchronization. Furthermore, the coherence between the muscular coactivation and tremor suggests a relation of the tremor to dystonia.
Related Concept Videos
Muscle Coordination and Action
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement....
Excitation-Contraction Coupling in Skeletal Muscles
When an action...
Relative Motion Analysis - Acceleration
Torsional Pendulum
As long as the rigid body's angular displacement is small, its oscillation can be modeled as a linear angular oscillation. The amplitude of the oscillation is an angle. The role of mass is played...
Relative Motion Analysis using Rotating Axes - Acceleration
Time differentiation is...
Alterations in Muscle Tone lll

