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Multisite comparison of wheelchair propulsion kinetics in persons with paraplegia

Koontz, AM and Yang, Y and Price, R and Tolerico, ML and DiGiovine, CP and Sisto, SA and Cooper, RA and Boninger, ML (2007) Multisite comparison of wheelchair propulsion kinetics in persons with paraplegia. Journal of Rehabilitation Research and Development, 44 (3). 449 - 458. ISSN 0748-7711

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A multisite collaborative study is being conducted on the association between propulsion biomechanics and upper-limb injuries. This substudy compared subject characteristics and pushrim kinetics across three sites and identified early on in the main study any differences that could affect interpretation of the findings or data pooling. A total of 42 manual wheelchair users with paraplegia (14 from each site) performed 0.9 m/s and 1.8 m/s steady state propulsion trials and an acceleration-brake-coastdown trial on a wheelchair dynamometer while propulsion forces and moment about the hub were measured with a Smart-Wheel. Significant differences between two sites were found in peak and average resultant force (p < 0.05), peak and average moment at the slower steady state speed (p < 0.005), and peak and average torque at the faster steady state speed (p = 0.06). Subjects at the site with significantly lower forces and torques had a slower deceleration rate during coastdown compared with the subjects at the other two sites (p < 0.001). These results imply that rolling resistance is lower at one of the sites and likely due to differences in dynamometer properties. A mechanical method was used to site-normalize the data and enable data pooling for future analyses.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Koontz, AMakoontz@pitt.eduAKOONTZ
Yang, Y
Price, R
Tolerico, ML
DiGiovine, CP
Sisto, SA
Boninger, MLboninger@pitt.eduBONINGER0000-0001-6966-919X
Centers: Other Centers, Institutes, Offices, or Units > Human Engineering Research Laboratories
Date: 23 July 2007
Date Type: Publication
Journal or Publication Title: Journal of Rehabilitation Research and Development
Volume: 44
Number: 3
Page Range: 449 - 458
DOI or Unique Handle: 10.1682/jrrd.2006.05.0048
Schools and Programs: School of Health and Rehabilitation Sciences > Rehabilitation Science and Technology
Refereed: Yes
ISSN: 0748-7711
MeSH Headings: Adult; Biomechanics; Cervical Vertebrae; Equipment Design; Exercise Therapy--instrumentation; Female; Hand Injuries--etiology; Hand Injuries--prevention & control; Humans; Kinetics; Male; Muscle Strength Dynamometer; Paraplegia--complications; Paraplegia--physiopathology; Paraplegia--rehabilitation; Spinal Cord Injuries--complications; Spinal Cord Injuries--physiopathology; Spinal Cord Injuries--rehabilitation; Wheelchairs--adverse effects
PubMed ID: 18247241
Date Deposited: 15 Oct 2012 14:15
Last Modified: 01 Sep 2023 14:55


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