The effects of stiffness and speed on upper limb electromyography during joystick use

dc.contributor.advisorOliver, Michele
dc.contributor.authorNorthey, Greg Warren
dc.date.accessioned2020-12-04T15:03:58Z
dc.date.available2020-12-04T15:03:58Z
dc.date.copyright2004
dc.degree.departmentSchool of Engineeringen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.description.abstractThe manipulation of joysticks to control heavy machinery requires a wide range of repetitive wrist and upper limb positions and motions, all of which can increase the operator's susceptibility to repetitive strain injuries. The purpose of this study was to analyse muscle activation using surface electromyography (EMG) on eight muscles of the upper limb during joystick manipulation. Eight subjects performed a series of motions at two different speeds on three joysticks with varying stiffness. Two EMG activation variables (integrated EMG (iEMG) and average peak EMG) were statistically analyzed to assess the effects of speed, stiffness and motion on EMG activation. Results indicate that every joystick motion requires at least a constant low level (between 2-5% MVC) muscle activation for all muscles. In addition, wrist postures at the extremes of joystick motion and shoulder strain due to armrest design appear to contribute potentially to the development of long term muscular pain and injury.en_US
dc.identifier.urihttps://hdl.handle.net/10214/22429
dc.language.isoen
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectjoystick useen_US
dc.subjectuper limben_US
dc.subjectelectromyographyen_US
dc.subjectstiffnessen_US
dc.subjectspeeden_US
dc.titleThe effects of stiffness and speed on upper limb electromyography during joystick useen_US
dc.typeThesisen_US

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Northey_GregW_MSc.pdf
Size:
12.44 MB
Format:
Adobe Portable Document Format