Evidence map›Paper›PMID 32673159›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2020

Middle-aged endurance athletes exhibit lower cerebrovascular impedance than sedentary peers.

Jun Sugawara, Tsubasa Tomoto, Justin Repshas, Rong Zhang, Takashi Tarumi

Open access · bronzeAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.0field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

8 citing papers in PubMed, 13 citations in OpenAlex.

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  8. Older age and male sex are associated with higher cerebrovascular impedance.Journal of applied physiology (Bethesda, Md. : 1985) · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Jun SugawaraInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas.ORCID 0000-0002-2603-0692
Tsubasa TomotoInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas.
Justin RepshasInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas.
Rong ZhangInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas.
Takashi TarumiInstitute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital Dallas, Dallas, Texas.
Presbyterian Hospital · US

Funding

Arterial Aging, Brain Perfusion & Exercise: Impact on Brain Structure & Function.R01HL102457 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI ZHANG, RONG · 2010 to 2013
$2.1M
Midlife Brain Plasticity: Exercise and Vascular FunctionK99HL133449 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI TARUMI, TAKASHI · 2016 to 2017
$193k
NHLBI NIH HHS K99 HL133449NHLBI NIH HHS R01 HL102457NIH HHS K99HL133449NIH HHS R01HL102457
6 · The paper itself

Abstract

Because elevated hemodynamic pulsatility could be mechanical stress against the brain, the dampening function of central and cerebral arteries is crucial. Regular endurance exercise training favorably restores the deteriorated dampening function of the aorta and carotid arteries in older populations, yet its effect on cerebrovascular dampening function remains unknown. To address this question, we compared cerebrovascular impedance, a frequency-domain relationship of the cerebral pressure and flow, in 21 middle-aged masters athletes who have been engaged in endurance training and races for >10 yr (MA, 53 ± 4 yr) with sedentary 21 age-matched (MS, 53 ± 5 yr) and 21 young (YS, 29 ± 6 yr) individuals. Using transfer function analysis, cerebrovascular impedance was computed from the simultaneously recorded carotid artery pressure (CAP, via applanation tonometry) and middle cerebral artery blood flow velocity (CBFV, via transcranial Doppler). In the frequency range of 0.78-3.12 Hz, coherence between pulsatile changes in CAP and CBFV was higher than 0.90 in all groups. All subjects exhibited the highest impedance modulus in the range of the first harmonic oscillations (0.78-1.56 Hz) mainly originating from cardiac ejection. Impedance modulus in this range was significantly lower in the MA than MS groups (0.88 ± 0.24 vs. 1.15 ± 0.29 mmHg·s/cm,

Indexed as

Cerebrovascular CirculationUltrasonography, Doppler, TranscranialAgedAthletesBlood Flow VelocityElectric ImpedanceHumansMiddle Agedarterial spin labelingcerebral blood flowcerebrovascular impedanceendurance trainingtranscranial Doppler

Identifiers

PMID32673159
PMCPMC7473949
OpenAlexW3043200540

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.