| Comparing the Finapres and Caretaker Systems for Measuring Pulse Transit Time Before and After Exercise. | |
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MedLine Citation:
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PMID: 22095319 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We aimed to compare the Finapres system, which is designed for accurate intra-arterial amplitude measurement, to the Caretaker system, which is designed for temporal accuracy of intra-arterial measurement, in regard to measurement of pulse transit time (PTT) at baseline and following an endurance exercise session. Pulse transit time was evaluated between the R-wave of the ECG and the foot of the arterial waveform using either the Finapres (fpPTT) or Caretaker (ctPTT). 23 participants were measured before and after completion of endurance exercise. When comparing PTT values before and after an exercise intervention within devices, ctPTT was significantly different following exercise (P=0.03); however, the Finapres obtained values did not differ significantly. Before exercise, there was no significant relationship between devices, however, after exercise a significant moderate correlation was observed (r=0.45, P=0.02). Significant differences existed between ctPTT and fpPTT (P< 0.001). The Caretaker system appears to be more accurate at detecting changes in PTT occurring as a result of a single aerobic exercise session. This may be due to the servo-controller feedback loop in the waveform contour predicting algorithm within the Finapres system, which is not present in the Caretaker unit. The Finapres system also appears to have an inherent delay in pulse contour reporting. |
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Authors:
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A A Phillips; J Burr; A T Cote; H J A Foulds; S Charlesworth; S S D Bredin; D E R Warburton |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-11-17 |
Journal Detail:
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Title: International journal of sports medicine Volume: - ISSN: 1439-3964 ISO Abbreviation: - Publication Date: 2011 Nov |
Date Detail:
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Created Date: 2011-11-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8008349 Medline TA: Int J Sports Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© Georg Thieme Verlag KG Stuttgart · New York. |
Affiliation:
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University of British Columbia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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