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Stroke Research and Treatment
Volume 2012, Article ID 247165, 8 pages
http://dx.doi.org/10.1155/2012/247165
Clinical Study

SenseWear Armband and Stroke: Validity of Energy Expenditure and Step Count Measurement during Walking

Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-50 Corbett Hall, Edmonton, AB, Canada T6G 2G4

Received 7 July 2012; Revised 7 August 2012; Accepted 8 September 2012

Academic Editor: Stefano Paolucci

Copyright © 2012 Patricia J. Manns and Robert G. Haennel. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The purpose of this study was to test the validity of the SenseWear Pro Armband (SWA) for the measurement of energy expenditure (EE) and step count against a criterion in persons with stroke. Twelve participants with chronic stroke (mean age years; mean gait speed  m/sec) completed two trials of a six-minute walk test, while wearing a SenseWear Armband (SWA) on each arm and being continuously monitored using a portable metabolic cart. Agreement between estimates of energy expenditure from the SWA and the metabolic cart was fair for the armband on the hemiplegic arm (intraclass correlation cefficient ) and good for the armband on the unaffected arm ( ). Agreement between the SWA estimate of step count, and step count as measured by the Step Activity Monitor was poor ( ), with significant underestimation by the SWA. Our results show that, for these moderately impaired persons with stroke, the SWA should be used with caution for the measurement of energy expenditure and should not be used to measure step count.