دورية أكاديمية
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Interpretation of Near-Infrared Spectroscopy (NIRS) Signals in Skeletal Muscle.

التفاصيل البيبلوغرافية
العنوان: Interpretation of Near-Infrared Spectroscopy (NIRS) Signals in Skeletal Muscle.
المؤلفون: Sanni AA; Department of Kinesiology, University of Georgia, Athens, GA 30602, USA., McCully KK; Department of Kinesiology, University of Georgia, Athens, GA 30602, USA.
المصدر: Journal of functional morphology and kinesiology [J Funct Morphol Kinesiol] 2019 May 26; Vol. 4 (2). Date of Electronic Publication: 2019 May 26.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101712257 Publication Model: Electronic Cited Medium: Internet ISSN: 2411-5142 (Electronic) Linking ISSN: 24115142 NLM ISO Abbreviation: J Funct Morphol Kinesiol Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI AG, [2016]-
مستخلص: Near-infrared spectroscopy (NIRS) uses the relative absorption of light at 850 and 760 nm to determine skeletal muscle oxygen saturation. Previous studies have used the ratio of both signals to report muscle oxygen saturation.
Purpose: The purpose of this pilot study is to assess the different approaches used to represent muscle oxygen saturation and to evaluate the pulsations of oxygenated hemoglobin/myoglobin (O 2 heme) and deoxygenated hemoglobin/myoglobin (Heme) signals.
Method: Twelve participants, aged 20-29 years, were tested on the forearm flexor muscles using continuous-wave NIRS at rest. Measurements were taken during 2-3 min rest, physiological calibration (5 min ischemia), and reperfusion. Ten participants were included in the study analysis.
Results: There was a significant difference in pulse size between O 2 heme and Heme signals at the three locations ( p < 0.05). Resting oxygen saturation was 58.8% + 9.2%, 69.6% + 3.9%, and 89.2% + 6.9% when calibrated using O 2 heme, the tissue oxygenation/saturation index (TSI), and Heme, respectively.
Conclusion: The difference in magnitude of O 2 heme and Heme pulses with each heartbeat might suggest different anatomical locations of these signals, for which calibrating with just one of the signals instead of the ratio of both is proposed. Calculations of physiological calibration must account for increased blood volume in the tissue because of the changes in blood volume, which appear to be primarily from the O 2 heme signal. Resting oxygen levels calibrated with Heme agree with theoretical oxygen saturation.
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فهرسة مساهمة: Keywords: hemoglobin; myoglobin; near-infrared spectroscopy (NIRS); oxygen consumption; skeletal muscle
تواريخ الأحداث: Date Created: 20210120 Latest Revision: 20210122
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC7739319
DOI: 10.3390/jfmk4020028
PMID: 33467344
قاعدة البيانات: MEDLINE
الوصف
تدمد:2411-5142
DOI:10.3390/jfmk4020028