| Accuracy and responsiveness of the stepwatch activity monitor and ActivPAL in patients with COPD when walking with and without a rollator. | |
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MedLine Citation:
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PMID: 22200080 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Purpose: To evaluate the measurement properties of the StepWatch(™) Activity Monitor (SAM) and ActivPAL in COPD. Method: Whilst wearing both monitors, participants performed walking tasks at two self-selected speeds, with and without a rollator. Steps obtained using the monitors were compared with that measured by direct observation. Results: Twenty participants aged 73 ± 9 years (FEV(1) = 35 ± 13% pred; 8 males) completed the study. Average speeds for the slow and normal walking tasks were 34 ± 7 m·min(-1)and 46 ± 10 m·min(-1), respectively. Agreement between steps recorded by the SAM with steps counted was similar irrespective of speed or rollator use (p = 0.63) with a mean difference and limit of agreement (LOA) of 2 steps·min(-1) and 6 steps·min(-1), respectively. Agreement for the ActivPAL was worse at slow speeds (mean difference 7 steps·min(-1); LOA 10 steps·min(-1)) compared with normal speeds (mean difference 4 steps·min(-1); LOA 5 steps·min(-1)) (p = 0.03), but was unaffected by rollator use. The change in step rate between slow and normal walking via direct observation was 12 ± 7 steps·min(-1) which was similar to that detected by the SAM (12 ± 6 steps·min(-1)) and ActivPAL (14 ± 7 steps·min(-1)). Conclusions: The SAM can be used to detect steps in people who walk very slowly including those who use a rollator. Both devices were sensitive to small changes. [Box: see text]. |
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Authors:
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Li Whye Cindy Ng; Sue Jenkins; Kylie Hill |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-12-26 |
Journal Detail:
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Title: Disability and rehabilitation Volume: - ISSN: 1464-5165 ISO Abbreviation: - Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-12-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9207179 Medline TA: Disabil Rehabil Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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School of Physiotherapy and Curtin Health Innovation Research Institute, Curtin University , Perth , Western Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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