| Relationship between measurement site and motion artifacts in wearable reflected photoplethysmography. | |
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MedLine Citation:
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PMID: 20703691 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Pulse rates obtained from wearable photoplethysmography (PPG) sensors are important for monitoring cardiovascular condition, especially during exercise. However, it is difficult to precisely count pulse rates during exercise because PPG is sensitive to body movement. The artifacts from body movement are caused by a change in the blood volume at the measurement site, in addition to pulsatile changes. Here, we investigated the influence of motion artifact with respect to light source and anatomical sites. In this study, we compared the signal from green-light PPG to that from infrared PPG at different anatomical sites. In these experiments, 11 subjects were asked to either assume a resting position or generate spontaneous motion artifact by jumping and swinging their arm. As a result, pulse rates obtained from green-light PPG showed a higher correlation with the ECG R-R interval as compared to those obtained with infrared. Additionally, the signal from the upper arm showed less artifact than did the peripheral one. Therefore, the green-light PPG may be useful for pulse rate monitoring. |
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Authors:
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Yuka Maeda; Masaki Sekine; Toshiyo Tamura |
Publication Detail:
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Type: Journal Article Date: 2010-05-07 |
Journal Detail:
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Title: Journal of medical systems Volume: 35 ISSN: 0148-5598 ISO Abbreviation: J Med Syst Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7806056 Medline TA: J Med Syst Country: United States |
Other Details:
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Languages: eng Pagination: 969-76 Citation Subset: IM |
Affiliation:
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Department of Medical System Engineering, Chiba University, Graduate School of Engineering, Chiba, Japan, y.maeda@graduate.chiba-u.jp. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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