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Evaluation of activity monitors in manual wheelchair users with paraplegia

Hiremath, SV and Ding, D (2011) Evaluation of activity monitors in manual wheelchair users with paraplegia. Journal of Spinal Cord Medicine, 34 (1). 110 - 117. ISSN 1079-0268

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Objective: The aim of this study was to evaluate the performance of SenseWear® (SW) and RT3 activity monitors (AMs) in estimating energy expenditure (EE) in manual wheelchair users (MWUs) with paraplegia for a variety of physical activities. Methods: Twenty-four subjects completed four activities including resting, wheelchair propulsion, arm-ergometry exercise, and deskwork. The criterion EE was measured by a K4b2 portable metabolic cart. The EE estimated by the SW and RT3 were compared with the criterion EE by the absolute differences and absolute percentage errors. Intraclass correlations and the Bland and Altman plots were also used to assess the agreements between the two AMs and the metabolic cart. Correlations between the criterion EE and the estimated EE and sensors data from the AMs were evaluated. Results: The EE estimation errors for the AMs varied from 24.4 to 125.8% for the SW and from 22.0 to 52.8% for the RT3. The intraclass correlation coefficients (ICCs) between the criterion EE and the EE estimated by the two AMs for each activity and all activities as a whole were considered poor with all the ICCs smaller than 0.75. Except for deskwork, the EE from the SW was more correlated to the criterion EE than the EE from the RT3. Conclusion: The results indicate that neither of the AMs is an appropriate tool for quantifying physical activity in MWUs with paraplegia. However, the accuracy of EE estimation could be potentially improved by building new regression models based on wheelchair-related activities. © The Academy for Spinal Cord Injury Professionals, Inc. 2011.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Hiremath, SVsvh4@pitt.eduSVH4
Ding, Ddad5@pitt.eduDAD5
Centers: Other Centers, Institutes, Offices, or Units > Human Engineering Research Laboratories
Date: 1 January 2011
Date Type: Publication
Journal or Publication Title: Journal of Spinal Cord Medicine
Volume: 34
Number: 1
Page Range: 110 - 117
DOI or Unique Handle: 10.1179/107902610x12911165975142
Schools and Programs: School of Health and Rehabilitation Sciences > Rehabilitation Science and Technology
Refereed: Yes
ISSN: 1079-0268
MeSH Headings: Actigraphy--instrumentation; Actigraphy--methods; Actigraphy--standards; Adult; Energy Metabolism--physiology; Exercise--physiology; Exercise Test--instrumentation; Exercise Test--methods; Exercise Test--standards; Female; Humans; Male; Middle Aged; Motor Activity; Paraplegia--metabolism; Paraplegia--physiopathology; Regression Analysis; Reproducibility of Results; Rest--physiology; Wheelchairs
Other ID: NLM PMC3066485
PubMed Central ID: PMC3066485
PubMed ID: 21528634
Date Deposited: 30 Jan 2013 20:58
Last Modified: 02 Feb 2019 14:55


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