Differences in EMG burst patterns during grasping dexterity tests and activities of daily living

ROWSON, Jennifer, GONZALEZ, Victor and YOXALL, Alaster (2018). Differences in EMG burst patterns during grasping dexterity tests and activities of daily living. Frontiers in bioengineering and biotechnology, 6, p. 68.

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Link to published version:: https://doi.org/10.3389/fbioe.2018.00068


The aim of this study was to characterize the muscle activation patterns which underlie the performance of two commonly used grasping patterns and compare the characteristics of such patterns during dexterity tests and activities of daily living. EMG of flexor digitorum and extensor digitorum were monitored from 6 healthy participants as they performed three tasks related to activities of daily living (picking up a coin, drinking from a cup, feeding with a spoon) and three dexterity tests (Variable Dexterity Test-Precision, Variable Dexterity Test-Cylinder, Purdue Pegboard Test). A ten-camera motion capture system was used to simultaneously acquire kinematics of index and middle fingers. Spatiotemporal aspects of the EMG signals were analyzed and compared to metacarpophalangeal joint angle of index and middle fingers. The work has shown that a common rehabilitation test such as the Purdue Pegboard test is a poor representation of the muscle activation patterns for activities of daily living. EMG and joint angle patterns from the Variable Dexterity Tests which has been designed to more accurately reflect a range of ADl's were consistently comparable with tasks requiring precision and cylinder grip, reaffirming the importance of object size and shape when attempting to accurately assess hand function.

Item Type: Article
Departments - Does NOT include content added after October 2018: Faculty of Science, Technology and Arts > Department of Art and Design
Identification Number: https://doi.org/10.3389/fbioe.2018.00068
Page Range: p. 68
Depositing User: Alaster Yoxall
Date Deposited: 12 Jun 2018 12:28
Last Modified: 18 Mar 2021 12:04
URI: https://shura.shu.ac.uk/id/eprint/21565

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