Evidence map›Paper›PMID 25311753›Full record

ArticleEuropean journal of applied physiology2015

Effects of increased skin blood flow on muscle oxygenation/deoxygenation: comparison of time-resolved and continuous-wave near-infrared spectroscopy signals.

Shunsaku Koga, David C Poole, Narihiko Kondo, Anna Oue, Etsuko Ohmae, Thomas J Barstow

Abstract readComparative Study
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In one paragraph

Article in European journal of applied physiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

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  7. Impact of cutaneous blood flow on NIR-DCS measures of skeletal muscle blood flow index.Journal of applied physiology (Bethesda, Md. : 1985) · 2021
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  11. Kinetic differences between macro- and microvascular measures of reactive hyperemia.Journal of applied physiology (Bethesda, Md. : 1985) · 2020
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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Shunsaku KogaApplied Physiology Laboratory, Kobe Design University, 8-1-1 Gakuennishi-machi, Nishi-Ku, Kobe, 651-2196, Japan, s-koga@kobe-du.ac.jp.
David C Poole
Narihiko Kondo
Anna Oue
Etsuko Ohmae
Thomas J Barstow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe quantified the contribution of skin blood flow (SkBF) to tissue oxygenation/deoxygenation of the flexor digitorum profundus muscle during cutaneous vasodilation.

methodsTime-resolved near-infrared spectroscopy (TRS-NIRS) was utilized to measure the potential influence of optical factors [mean optical pathlength (PL) and coefficients of absorption (μa) and reduced scattering ([Formula: see text])] on the NIRS-derived signals of eight male subjects.

resultsThe approximately threefold elevation of SkBF during 1 h whole-body heating (increased internal temperature ~0.9 °C) increased both μa and [Formula: see text] without changing PL. Assuming that the [Formula: see text] coefficient remained constant, i.e., as with continuous-wave (CW) NIRS, resulted in a significant increase in the apparent oxygenation [oxy(Hb + Mb), from 113 ± 13 μM (mean ± SD) for control to 126 ± 13 for the increased SkBF condition, P < 0.01]: this was in marked contrast to the unchanged TRS-derived values. The deoxygenation [deoxy(Hb + Mb)] also increased from control to elevated SkBF (CW-NIRS, from 39 ± 8 to 45 ± 7; TRS, from 38 ± 6 to 44 ± 7 μM; P < 0.01 for both), but less than that seen for oxy(Hb + Mb) and not different between TRS- and CW-NIRS. Further, and in contrast to oxy(Hb + Mb), temporal profiles of deoxy(Hb + Mb) measured by the two NIRS methods were not different.

conclusionsThese findings support use of either NIRS method to estimate local muscle fractional O2 extraction, but not oxygenation, when SkBF is increased at rest.

Indexed as

Oxygen ConsumptionRegional Blood FlowAdultHumansMaleMuscle, SkeletalSkinSpectroscopy, Near-InfraredVasodilation

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.