scholarly journals Feasibility study for producing high-density polystyrene bead foam

1976 ◽  
Author(s):  
R. Swoboda
Keyword(s):  
Feasibility Study ◽  
High Density ◽  
Polystyrene Bead

scholarly journals Combining ultrafast ultrasound and high-density EMG to assess local electromechanical muscle dynamics: a feasibility study

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Rick Waasdorp ◽  
Winfred Mugge ◽  
Hendrik J. Vos ◽  
Jurriaan H. De Groot ◽  
Martin D. Verweij ◽  
...  
Keyword(s):  
Feasibility Study ◽  
High Density ◽  
Muscle Dynamics

Feasibility Study of High Density Land/Groove Recording on Magnetooptical Disks

1997 ◽  
Vol 36 (Part 1, No. 1B) ◽  
pp. 495-499 ◽  
Author(s):  
Kyuya Narita ◽  
Toshifumi Kawano ◽  
Hideharu Takeshima
Keyword(s):  
Feasibility Study ◽  
High Density

A Novel High-Density Electromyography Probe for Evaluating Anorectal Neurophysiology: Design, Human Feasibility Study, and Validation with Trans-Sacral Magnetic Stimulation

2020 ◽  
Vol 49 (1) ◽  
pp. 502-514
Author(s):  
Niranchan Paskaranandavadivel ◽  
Chris Varghese ◽  
Jaime Lara ◽  
Shasti Ramachandran ◽  
Leo Cheng ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Magnetic Stimulation ◽  
High Density

scholarly journals Robotic Wrist Rehabilitation With High-density Electromyographic Biofeedback for Reducing Co-activation of Antagonist Muscles and Improved Motor Coordination: A Feasibility Study

2020 ◽  
Author(s):  
Imre CIKAJLO ◽  
Matjaž Zadravec ◽  
Zlatko Matjačić ◽  
Filip Urh ◽  
Martin Šavc ◽  
...  
Keyword(s):  
Real Time ◽  
Feasibility Study ◽  
High Density ◽  
Biofeedback Training ◽  
Stroke Survivors ◽  
Wrist Flexion ◽  
Antagonist Muscles ◽  
Co Activation ◽  
Force Tracking ◽  
Wrist Flexors

Abstract Objectives: Electromygraphic (EMG) biofeedback has been successfully applied in stroke survivors for a few decades. Recently high-density (HD) electrodes were introduced in research and diagnostic EMG. The application of such electrodes may increase the reliability and selectivity, but requires information reduction for real-time biofeedback. We tested whether the use of the proposed feedback is feasible in minimization of inappropriate co-activation of wrist flexors/extensors controlled by the wrist rehabilitation robot. Methods: The EMG of wrist flexors and extensors muscles has been assessed by arrays of 5 x 13 electrodes, reduced to 1 x 4 information matrix and provided as real-time biofeedback during wrist movement controlled by the robot. The designed task required to keep the contribution of agonist muscles within predefined limits. A feasibility study with a single patient with stroke was conducted to examine force tracking and reduction of activity of antagonists wrist muscles in 4 weeks. Results: Force tracking signal and cumulative forecast errors decreased in 4 trials. The RMS activity of antagonist muscles significantly decreased (Kruskal Wallis, c2 = 3.330*10-9) during wrist flexion in the 4th week of trials. The participant was able to follow the reduced HDEMG biofeedback.Conclusions: The outcomes show that the surface HDEMG biofeedback has a potential to decrease the co-activation of antagonist muscles, wrist flexion in particular. Additionally the combination of force tracking and robot assisted biofeedback training may recover selective hand function in stroke survivors who would less likely to develop contractures. Trial registration: The study is not a clinical trial. While human subjects are involved, they do not participate in a full rehabilitation intervention, and no health outcomes are examined.

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