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Preliminary evaluation of a variable compliance joystick for people with multiple sclerosis

Mahajan, HP and Spaeth, DM and Dicianno, BE and Brown, K and Cooper, RA (2014) Preliminary evaluation of a variable compliance joystick for people with multiple sclerosis. Journal of Rehabilitation Research and Development, 51 (6). 951 - 962. ISSN 0748-7711

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Upper-limb fatigue is a common problem that may restrict people with multiple sclerosis (MS) from using their electric powered wheelchair effectively and for a long period of time. The objective of this research is to evaluate whether participants with MS can drive better with a variable compliance joystick (VCJ) and customizable algorithms than with a conventional wheelchair joystick. Eleven participants were randomly assigned to one of two groups. The groups used the VCJ in either compliant or noncompliant isometric mode and a standard algorithm, personally fitted algorithm, or personally fitted algorithm with fatigue adaptation running in the background in order to complete virtual wheelchair driving tasks. Participants with MS showed better driving performance metrics while using the customized algorithms than while using the standard algorithm with the VCJ. Fatigue adaptation algorithms are especially beneficial in improving overall task performance while using the VCJ in isometric mode. The VCJ, along with the personally fitted algorithms and fatigue adaptation algorithms, has the potential to be an effective input interface for wheelchairs.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Mahajan, HP
Spaeth, DMspaeth@pitt.eduSPAETH
Dicianno, BEdicianno@pitt.eduDICIANNO0000-0003-0738-0192
Brown, K
Date: 1 January 2014
Date Type: Publication
Journal or Publication Title: Journal of Rehabilitation Research and Development
Volume: 51
Number: 6
Page Range: 951 - 962
DOI or Unique Handle: 10.1682/jrrd.2013.01.0023
Schools and Programs: School of Health and Rehabilitation Sciences > Rehabilitation Science and Technology
School of Medicine > Physical Medicine and Rehabilitation
Swanson School of Engineering > Bioengineering
Refereed: Yes
ISSN: 0748-7711
Date Deposited: 22 May 2015 21:48
Last Modified: 30 Mar 2021 17:55


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