Evidence map›Paper›PMID 38819659›Full record

ArticleEuropean journal of applied physiology2024

Central and peripheral haemodynamics at exercise onset: the role of central command.

Gaia Giuriato, Stephen J Ives, Cantor Tarperi, Lorenzo Bortolan, Federico Ruzzante, Antonio Cevese, Federico Schena, Massimo Venturelli

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Article in European journal of applied physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Gaia GiuriatoDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy. gaia.giuriato@univr.it.ORCID http://orcid.org/0000-0002-8149-9450
Stephen J IvesHealth and Human Physiological Sciences Department, Skidmore College, Saratoga Springs, NY, USA.
Cantor TarperiDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Lorenzo BortolanDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Federico RuzzanteDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Antonio CeveseDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Federico SchenaDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
Massimo VenturelliDepartment of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe involvement of central command in central hemodynamic regulation during exercise is relatively well-known, although its contribution to peripheral hemodynamics at the onset of low-intensity contractions is debated. This study sought to examine central and peripheral hemodynamics during electrically-evoked muscle contractions (without central command) and voluntary muscle activity (with central command).

methodsCyclic quadriceps isometric contractions (1 every second), either electrically-evoked (ES; 200 ms trains composed of 20 square waves) or performed voluntarily (VC), were executed by 10 healthy males (26 ± 3 years). In both trials, matched for force output, peripheral and central hemodynamics were analysed.

resultsAt exercise onset, both ES and VC exhibited equal peaks of femoral blood flow (1276 ± 849 vs. 1117 ± 632 ml/min, p > 0.05) and vascular conductance (15 ± 11 vs. 13 ± 7 ml/min/mmHg, p > 0.05), respectively. Similar peaks of heart rate (86 ± 16 bpm vs. 85 ± 16 bpm), stroke volume (100 ± 20 vs. 99 ± 27 ml), cardiac output (8.2 ± 2.5 vs. 8.5 ± 2.1 L/min), and mean arterial pressure (113 ± 13 vs. 113 ± 3 mmHg), were recorded (all, p > 0.05). After ~ 50 s, all the variables drifted to lower values. Collectively, the hemodynamics showed equal responses.

conclusionThese results suggest a similar pathway for the initial (first 40 s) increase in central and peripheral hemodynamics. The parallel responses may suggest an initial minimal central command involvement during the onset of low-intensity contractions, likely associated with a neural drive activation delay or threshold.

Indexed as

ExerciseHemodynamicsIsometric ContractionAdultCardiac OutputHeart RateHumansMaleMuscle, SkeletalQuadriceps MuscleBlood flowElectrical stimulationHyperemiaVoluntary contraction

Identifiers

PMID38819659
PMCPMC11467020

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