PMID- 21528634 OWN - NLM STAT- MEDLINE DCOM- 20110524 LR - 20220321 IS - 1079-0268 (Print) IS - 2045-7723 (Electronic) IS - 1079-0268 (Linking) VI - 34 IP - 1 DP - 2011 TI - Evaluation of activity monitors in manual wheelchair users with paraplegia. PG - 110-7 AB - 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. FAU - Hiremath, Shivayogi V AU - Hiremath SV AD - Human Engineering Research Laboratories, Department of Veterans Affairs, Pittsburgh, PA, USA. FAU - Ding, Dan AU - Ding D LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - England TA - J Spinal Cord Med JT - The journal of spinal cord medicine JID - 9504452 SB - IM MH - Actigraphy/instrumentation/*methods/standards MH - Adult MH - Energy Metabolism/physiology MH - Exercise/physiology MH - Exercise Test/instrumentation/*methods/standards MH - Female MH - Humans MH - Male MH - Middle Aged MH - *Motor Activity MH - Paraplegia/metabolism/*physiopathology MH - Regression Analysis MH - Reproducibility of Results MH - Rest/physiology MH - *Wheelchairs PMC - PMC3066485 EDAT- 2011/05/03 06:00 MHDA- 2011/05/25 06:00 PMCR- 2012/01/01 CRDT- 2011/05/03 06:00 PHST- 2011/05/03 06:00 [entrez] PHST- 2011/05/03 06:00 [pubmed] PHST- 2011/05/25 06:00 [medline] PHST- 2012/01/01 00:00 [pmc-release] AID - scm-34-110 [pii] AID - 10.1179/107902610X12911165975142 [doi] PST - ppublish SO - J Spinal Cord Med. 2011;34(1):110-7. doi: 10.1179/107902610X12911165975142.