Matches in SemOpenAlex for { <https://semopenalex.org/work/W6351451> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W6351451 endingPage "365" @default.
- W6351451 startingPage "361" @default.
- W6351451 abstract "Human heart rate variability (HRV) was examined during a mild respiratory acidosis induced by inhalation of a normoxic hypercapnic gas mixture. On two separate occasions, separated by 72 but not more than 120hr, ECG was recorded from 9 normotensive subjects during supine rest. ECG was recorded for 20 min breathing room air or a 5% CO2 in normoxic air mixture. Expired V'E, O2 and CO2 were measured with breath-by-breath mass spectrometry. HRV spectra were calculated using a Welch averaged periodogram method and banded as Very Low Frequency (VLF: 0 - 0.04 Hz), Low Frequency (LF: 0.04 - 0.15 Hz), and High Frequency (HF: 0.15 - 0.4Hz). Student paired samples t-tests were used to compare room air (RA) versus inhaled 5% CO2 in air (5% CO2) data. All results reported as mean +/- SD. In the HRV time domain, hypercapnic normoxia reduced mean r-r intervals (5% CO2: 956.1 +/- 149.2 vs. RA: 1035 +/- 146.8 ms, p = 0.022) and median r-r intervals (5% CO2: 942.6 +/- 153.1 vs. RA: 1047.8 +/- 157.3 ms, p = 0.010), and increased heart rates (5% CO2: 64.4 +/- 12 vs. RA: 59.3 +/- 10.1 bpm, p = 0.019). In the HRV frequency domain, hypercapnic normoxia increased the high frequency component of HRV (5% CO2: 9799 +/- 7649 vs. RA: 4399 +/- 3857 ms2, p = 0.004) and reduced the LF/HF ratio (5% CO2: 0.243 +/- 0.145 vs. RA: 0.906 +/- 0.672, p = 0.017). An incomplete ventilatory compensation probably accounts for the increased HF contribution. An increased heart rate with a mild respiratory acidosis may be caused by a vasodilator effect of elevated arterial PCO2, stimulating the increase in heart rate to maintain blood pressure." @default.
- W6351451 created "2016-06-24" @default.
- W6351451 creator A5060224195 @default.
- W6351451 creator A5078278213 @default.
- W6351451 date "2008-01-01" @default.
- W6351451 modified "2023-09-25" @default.
- W6351451 title "The Effects of a Respiratory Acidosis on Human Heart Rate Variability" @default.
- W6351451 cites W1973476060 @default.
- W6351451 cites W1979144755 @default.
- W6351451 cites W1988079974 @default.
- W6351451 cites W2002644179 @default.
- W6351451 cites W2042487436 @default.
- W6351451 cites W2057887447 @default.
- W6351451 cites W2112400936 @default.
- W6351451 cites W2144328154 @default.
- W6351451 cites W2150520084 @default.
- W6351451 cites W2285072859 @default.
- W6351451 doi "https://doi.org/10.1007/978-0-387-73693-8_63" @default.
- W6351451 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/18085300" @default.
- W6351451 hasPublicationYear "2008" @default.
- W6351451 type Work @default.
- W6351451 sameAs 6351451 @default.
- W6351451 citedByCount "11" @default.
- W6351451 countsByYear W63514512013 @default.
- W6351451 countsByYear W63514512015 @default.
- W6351451 countsByYear W63514512018 @default.
- W6351451 countsByYear W63514512019 @default.
- W6351451 countsByYear W63514512020 @default.
- W6351451 countsByYear W63514512022 @default.
- W6351451 crossrefType "book-chapter" @default.
- W6351451 hasAuthorship W6351451A5060224195 @default.
- W6351451 hasAuthorship W6351451A5078278213 @default.
- W6351451 hasConcept C125567185 @default.
- W6351451 hasConcept C126322002 @default.
- W6351451 hasConcept C164705383 @default.
- W6351451 hasConcept C185592680 @default.
- W6351451 hasConcept C2776954882 @default.
- W6351451 hasConcept C2776989520 @default.
- W6351451 hasConcept C2777953023 @default.
- W6351451 hasConcept C42219234 @default.
- W6351451 hasConcept C534529494 @default.
- W6351451 hasConcept C71635504 @default.
- W6351451 hasConcept C71924100 @default.
- W6351451 hasConcept C8213797 @default.
- W6351451 hasConcept C84393581 @default.
- W6351451 hasConceptScore W6351451C125567185 @default.
- W6351451 hasConceptScore W6351451C126322002 @default.
- W6351451 hasConceptScore W6351451C164705383 @default.
- W6351451 hasConceptScore W6351451C185592680 @default.
- W6351451 hasConceptScore W6351451C2776954882 @default.
- W6351451 hasConceptScore W6351451C2776989520 @default.
- W6351451 hasConceptScore W6351451C2777953023 @default.
- W6351451 hasConceptScore W6351451C42219234 @default.
- W6351451 hasConceptScore W6351451C534529494 @default.
- W6351451 hasConceptScore W6351451C71635504 @default.
- W6351451 hasConceptScore W6351451C71924100 @default.
- W6351451 hasConceptScore W6351451C8213797 @default.
- W6351451 hasConceptScore W6351451C84393581 @default.
- W6351451 hasLocation W63514511 @default.
- W6351451 hasLocation W63514512 @default.
- W6351451 hasOpenAccess W6351451 @default.
- W6351451 hasPrimaryLocation W63514511 @default.
- W6351451 hasRelatedWork W127979794 @default.
- W6351451 hasRelatedWork W2048921239 @default.
- W6351451 hasRelatedWork W2074440334 @default.
- W6351451 hasRelatedWork W2185915419 @default.
- W6351451 hasRelatedWork W2213136703 @default.
- W6351451 hasRelatedWork W2254603275 @default.
- W6351451 hasRelatedWork W2286034840 @default.
- W6351451 hasRelatedWork W2370718236 @default.
- W6351451 hasRelatedWork W2390539121 @default.
- W6351451 hasRelatedWork W3021246572 @default.
- W6351451 isParatext "false" @default.
- W6351451 isRetracted "false" @default.
- W6351451 magId "6351451" @default.
- W6351451 workType "book-chapter" @default.