Evidence map›Paper›PMID 23526811›Full record

ArticleJournal of magnetic resonance imaging : JMRI2013

Life-long aerobic exercise preserved baseline cerebral blood flow but reduced vascular reactivity to CO2.

Binu P Thomas, Uma S Yezhuvath, Benjamin Y Tseng, Peiying Liu, Benjamin D Levine, Rong Zhang, Hanzhang Lu

Abstract readComparative Study
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

89 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Variability of physiological brain perfusion in healthy subjects - A systematic review of modifiers. Considerations for multi-center ASL studies.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Pooled it
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  4. Higher VOScientific reports · 2021
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  11. Article
  12. Cerebrovascular reactivity delay measured by blood oxygen level dependent magnetic resonance imaging and gas challenges: A systematic review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
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  19. Functional MRI Signatures of Autonomic Physiology in Aging.bioRxiv : the preprint server for biology · 2025
    Article
  20. Article

29 more citing papers are in PubMed but not listed here.

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

7 authors.

Binu P ThomasAdvanced Imaging Research Center, UT Southwestern Medical Center, Dallas, Texas, USA; Biomedical Engineering Graduate Program, UT Southwestern Medical Center, Dallas, Texas / UT Arlington, Arlington, Texas, USA.
Uma S Yezhuvath
Benjamin Y Tseng
Peiying Liu
Benjamin D Levine
Rong Zhang
Hanzhang Lu

Funding

Normalized functional MRI in human brain disordersR01MH084021 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG · 2008 to 2017
$3.6M
Mild Cognitive Impairment: Cerebrovascular Dysfunction and Exercise TrainingR01AG033106 · NIA · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG, ZHANG, RONG · 2009 to 2012
$3.1M
Modulation of brain activity by control of the inspired airR01NS067015 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG · 2010 to 2013
$1.5M
Cognition and cerebrovascular function across the lifespanR01AG042753 · NIA · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG · 2013 to 2015
$841k
Vascular physiology in brain white matterR21NS078656 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG · 2012 to 2013
$441k
Cognition and Cerebrovascular function across the lifespanR21AG034318 · NIA · UT SOUTHWESTERN MEDICAL CENTER · PI LU, HANZHANG · 2009 to 2010
$379k
NIA NIH HHS R01 AG033106NIA NIH HHS R01 AG042753NIA NIH HHS R21 AG034318NIMH NIH HHS R01 MH084021NINDS NIH HHS R01 NS067015NINDS NIH HHS R21 NS078656
6 · The paper itself

Abstract

purposeTo examine the potential benefits of life-long aerobic exercise on brain health, in particular cerebrovascular function. MATERIALS AND

methodsTen Masters athletes (MA) (seven males, three females; 74.5 ± 5.8 years) and 10 sedentary elderly individuals (SE) (eight males, two females; 75.4 ± 5.6 years) were recruited and baseline cerebral blood flow (CBF) and cerebral vascular reactivity (CVR) to CO2 were measured on a 3T MRI scanner. Nine sedentary young subjects were also recruited to serve as a control group to verify the age effect.

resultsWhen compared to the SE group, MA showed higher CBF in posterior cingulate cortex/precuneus, which are key regions of the default-mode-network and are known to be highly sensitive to age and dementia. CVR in the MA brains were paradoxically lower than that in SE. This effect was present throughout the brain. Within the MA group, individuals with higher VO2max had an even lower CVR, suggesting a dose-response relationship.

conclusionLife-long aerobic exercise preserved blood supply in the brain's default-mode-network against age-related degradation. On the other hand, its impact on the cerebral vascular system seems to be characterized by a dampening of CO2 reactivity, possibly because of desensitization effects due to a higher lifetime exposure.

Indexed as

Carbon DioxideAgingBlood Flow VelocityCerebrovascular CirculationExerciseFemaleHumansMaleMiddle AgedPhysical FitnessSedentary BehaviorSportsVascular ResistanceCarbon Dioxidearterial-spin-labelingBOLD MRIcerebral blood flowcerebral vascular reactivityCO2masters athletes

Identifiers

PMID23526811
PMCPMC3695025

What OpenQuestion holds

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LicenceTDM
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.