Effects of increased respiratory rate on cortical oxygenated hemoglobin during low-intensity exercise
Copyright © 2021 Elsevier B.V. All rights reserved..
This study aimed to examine whether the end-tidal partial pressure of CO2 (PEtCO2) affects the concentration of oxygenated hemoglobin (O2Hb) measured by near-infrared spectroscopy (NIRS). Participants were examined under the conditions of normal and increased ventilation. We measured O2Hb, mean blood pressure, skin blood flow, PEtCO2, respiratory rate, and minute volume at 30 % of the maximum oxygen uptake during exercise. ΔO2Hb and PEtCO2 during exercise were lower in the increased ventilation than in the normal ventilation condition. Pearson's product-moment correlation analysis showed a significant positive correlation between ΔO2Hb and ΔMAP, ΔSBF, and PEtCO2. Correlation coefficients were 0.249 (p < 0.001) for ΔMAP, 0.343 (p < 0.001) for ΔSBF, and 0.315 (p < 0.001) for PEtCO2. In conclusion, we identified increased ventilation during bicycle ergometer exercise as a significant factor associated with significantly low PEtCO2 and ΔO2Hb.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2021 |
|---|---|
| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:291 |
|---|---|
| Enthalten in: |
Respiratory physiology & neurobiology - 291(2021) vom: 15. Sept., Seite 103691 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Oyanagi, Keiichi [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Bicycle ergometer |
|---|
| Anmerkungen: |
Date Completed 20.01.2022 Date Revised 20.01.2022 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1016/j.resp.2021.103691 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM325441014 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM325441014 | ||
| 003 | DE-627 | ||
| 005 | 20231225192438.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2021 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1016/j.resp.2021.103691 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1084.xml |
| 035 | |a (DE-627)NLM325441014 | ||
| 035 | |a (NLM)33992799 | ||
| 035 | |a (PII)S1569-9048(21)00076-8 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Oyanagi, Keiichi |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Effects of increased respiratory rate on cortical oxygenated hemoglobin during low-intensity exercise |
| 264 | 1 | |c 2021 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 20.01.2022 | ||
| 500 | |a Date Revised 20.01.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier B.V. All rights reserved. | ||
| 520 | |a This study aimed to examine whether the end-tidal partial pressure of CO2 (PEtCO2) affects the concentration of oxygenated hemoglobin (O2Hb) measured by near-infrared spectroscopy (NIRS). Participants were examined under the conditions of normal and increased ventilation. We measured O2Hb, mean blood pressure, skin blood flow, PEtCO2, respiratory rate, and minute volume at 30 % of the maximum oxygen uptake during exercise. ΔO2Hb and PEtCO2 during exercise were lower in the increased ventilation than in the normal ventilation condition. Pearson's product-moment correlation analysis showed a significant positive correlation between ΔO2Hb and ΔMAP, ΔSBF, and PEtCO2. Correlation coefficients were 0.249 (p < 0.001) for ΔMAP, 0.343 (p < 0.001) for ΔSBF, and 0.315 (p < 0.001) for PEtCO2. In conclusion, we identified increased ventilation during bicycle ergometer exercise as a significant factor associated with significantly low PEtCO2 and ΔO2Hb | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Bicycle ergometer | |
| 650 | 4 | |a Cortical oxygenated hemoglobin | |
| 650 | 4 | |a End-tidal partial pressure CO(2) | |
| 650 | 4 | |a Increased ventilation | |
| 650 | 7 | |a Oxyhemoglobins |2 NLM | |
| 700 | 1 | |a Tsubaki, Atsuhiro |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Respiratory physiology & neurobiology |d 2002 |g 291(2021) vom: 15. Sept., Seite 103691 |w (DE-627)NLM11965413X |x 1878-1519 |7 nnns |
| 773 | 1 | 8 | |g volume:291 |g year:2021 |g day:15 |g month:09 |g pages:103691 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.resp.2021.103691 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 291 |j 2021 |b 15 |c 09 |h 103691 | ||