Guirand, AS and Dicianno, BE and Mahajan, H and Cooper, RA
(2011)
Tuning algorithms for control interfaces for users with upper-limb impairments.
American Journal of Physical Medicine and Rehabilitation, 90 (12).
992 - 998.
ISSN 0894-9115
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Abstract
Objective: Approximately 40% of Americans with disabilities cannot operate wheeled mobility devices and computers adequately because of diminished upper-limb motor control, sensory limitations, and cognitive impairments. We developed tuning software that can customize control interfaces for individuals with upper-limb impairments. This study compared the differences in each parameter among different diagnostic groups. Design: The age of the subjects ranged from 18 to 80 yrs. The participants were classified into the following groups: athetoid cerebral palsy, spastic cerebral palsy, multiple sclerosis, upper-limb spasticity, and control. We used a validated tuning software protocol to customize an isometric joystick before a virtual tracing or driving task. Tuning parameters were then compared across groups. Results: Seventy-five subjects were included. Gain, the parameter responsible for force-to-output ratios, in each directional axis (leftward gain: P = 0.018; rightward gain: P = 0.003; reverse gain: P = 0.007; forward gain: P = 0.014) was significantly different across the diagnostic groups. Post hoc analyses showed that the control group required smaller leftward gain than spastic cerebral palsy, multiple sclerosis and upper-limb spasticity groups and smaller gain in all other directions compared with spastic cerebral palsy. Conclusions: Gain may be a useful parameter in tuning by clinicians, and efforts aimed at gain customization may aid the development of commercially available tuning software packages. Copyright © 2011 by Lippincott Williams & Wilkins.
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Details
| Item Type: |
Article
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| Status: |
Published |
| Creators/Authors: |
|
| Centers: |
Other Centers, Institutes, Offices, or Units > Human Engineering Research Laboratories |
| Date: |
1 December 2011 |
| Date Type: |
Publication |
| Journal or Publication Title: |
American Journal of Physical Medicine and Rehabilitation |
| Volume: |
90 |
| Number: |
12 |
| Page Range: |
992 - 998 |
| DOI or Unique Handle: |
10.1097/phm.0b013e318228ca9f |
| Schools and Programs: |
School of Health and Rehabilitation Sciences > Rehabilitation Science and Technology |
| Refereed: |
Yes |
| ISSN: |
0894-9115 |
| MeSH Headings: |
Adolescent; Adult; Aged; Aged, 80 and over; Algorithms; Brain Injuries--diagnosis; Brain Injuries--rehabilitation; Case-Control Studies; Cerebral Palsy--diagnosis; Cerebral Palsy--rehabilitation; Cohort Studies; Disability Evaluation; Disabled Persons--rehabilitation; Equipment Design; Female; Humans; Male; Middle Aged; Multiple Sclerosis--diagnosis; Multiple Sclerosis--rehabilitation; Neuromuscular Diseases--diagnosis; Neuromuscular Diseases--rehabilitation; Parkinson Disease--diagnosis; Parkinson Disease--rehabilitation; Reference Values; Self-Help Devices--utilization; Software; Upper Extremity--physiopathology; User-Computer Interface; Young Adult |
| Other ID: |
NLM NIHMS311106 [Available on 12/01/12], NLM PMC3217060 [Available on 12/01/12] |
| PubMed Central ID: |
PMC3217060 |
| PubMed ID: |
22019961 |
| Date Deposited: |
12 Oct 2012 18:37 |
| Last Modified: |
05 Feb 2019 00:55 |
| URI: |
http://d-scholarship-dev.library.pitt.edu/id/eprint/15710 |
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