Cited by 254Heart Rate Variability and Autonomic ControlBlood Pressure and Hypertension StudiesCardiovascular Syncope and Autonomic Disorders

Balance between cardiac output and sympathetic nerve activity in resting humans: role in arterial pressure regulation

Open access
Charkoudian, N., Joyner, M. J., Johnson, C. P., Eisenach, J. H., Dietz, N. M., Wallin, B. G.·2005·The Journal of Physiology

Abstract

Large, reproducible interindividual differences exist in resting sympathetic nerve activity among normotensive humans with similar arterial pressures, resulting in a lack of correlation between muscle sympathetic nerve activity (MSNA) and arterial pressure among individuals. Although it is known that the arterial pressure is the main short‐term determinant of MSNA in humans via the arterial baroreflex, the lack of correlation among individuals suggests that the level of arterial pressure is not the only important input in regulation of MSNA in humans. We studied the relationship between cardiac output (CO) and baroreflex control of sympathetic activity by measuring MSNA (peroneal microneurography), arterial pressure (arterial catheter), CO (acetylene uptake technique) and heart rate (HR; electrocardiogram) in 17 healthy young men during 20 min of supine rest. Across individuals, MSNA did not correlate with mean or diastolic blood pressure ( r < 0.01 for both), but displayed a significant negative correlation with CO ( r =−0.71, P = 0.001). To assess whether CO is related to arterial baroreflex control of MSNA, we constructed a baroreflex threshold diagram for each individual by plotting the percentage occurrence of a sympathetic burst against diastolic pressure. The mid‐point of the diagram ( T 50 ) at which 50% of cardiac cycles are associated with bursts, was inversely related to CO ( r =−0.75, P < 0.001) and stroke volume (SV) ( r =−0.57, P = 0.015). We conclude that dynamic inputs from CO and SV are important in regulation of baroreflex control of MSNA in healthy, normotensive humans. This results in a balance between CO and sympathetically mediated vasoconstriction that may contribute importantly to normal regulation of arterial pressure in humans.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1113/jphysiol.2005.090076

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Charkoudian, N., Joyner, M. J., Johnson, C. P., Eisenach, J. H., Dietz, N. M., & Wallin, B. G.
Affiliations
Mayo Clinic (US)
Corresponding author
Charkoudian, N.
Venue
The Journal of Physiology
Publisher
Wiley
Published
2005-09-28
Volume
568
Issue
1
Pages
315-321
ISSN
  • 0022-3751 (ISSN-L)
  • 1469-7793
OpenAlex
W1613720875
Cited by
254
References
31
Citations by year
2026: 7 · 2025: 10 · 2024: 8 · 2023: 9 · 2022: 6 · 2021: 11 · 2020: 11 · 2019: 11 · 2018: 13 · 2017: 16 · 2016: 11 · 2015: 10 · 2014: 19 · 2013: 15 · 2012: 14
FWCI
10.28
Type
journal article
Language
en
Open access
Locations
  • The Journal of Physiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (n01ns032352-003, NS3 2352, RR-00585)
  • Medical Research Council
  • National Heart, Lung, and Blood Institute (HL-73884, R01HL073884)
  • National Institute of Neurological Disorders and Stroke (N01 NS032352)
  • National Center for Research Resources (RR-00585, M01RR000585)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Surgery › Cardiovascular Syncope and Autonomic Disorders
Keywords
cardiac output, muscle sympathetic nerve activity, arterial baroreflex, blood pressure regulation, stroke volume, sympathetic vasoconstriction, interindividual variability, heart rate
MeSH terms
Adult, Arteries, Blood Pressure, Cardiac Output, Heart Rate, Humans, Male, Muscle, Smooth, Vascular, Peroneal Nerve, Stroke Volume, Sympathetic Nervous System, Baroreflex

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review