Evidence map›Paper›PMID 31664869›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2020

The magnitude of the exercise pressor reflex is influenced by the active skeletal muscle mass in the decerebrate rat.

Juan A Estrada, Guillaume P Ducrocq, Marc P Kaufman

Abstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Hypertension restricts leg blood flow and aggravates neuromuscular fatigue during human locomotion in males.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Article
  6. Article
  7. Lower middle cerebral artery blood velocity during low-volume high-intensity interval exercise in chronic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
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

3 authors.

Juan A EstradaHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania.
Guillaume P DucrocqHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania.
Marc P KaufmanHeart and Vascular Institute, Penn State College of Medicine, Hershey, Pennsylvania.

Funding

Project 3: Role Played by ASIC, P2X and EP4 Receptors in the Exercise Pressor Reflex in Health and Simulated PADP01HL134609 · NHLBI · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KAUFMAN, MARC PETER · 2017 to 2021
$9.4M
Excitability of Afferents Evoking the Exercise Pressor ReflexR01AR059397 · NIAMS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI ELMSLIE, KEITH S, KAUFMAN, MARC PETER · 2010 to 2019
$5.4M
NHLBI NIH HHS P01 HL134609NIAMS NIH HHS R01 AR059397
6 · The paper itself

Abstract

The exercise pressor reflex is composed of two components, namely the muscle mechanoreflex and the muscle metaboreflex. The afferents evoking the two components are either thinly myelinated (group III) or unmyelinated (group IV); in combination they are termed "thin fiber afferents." The exercise pressor reflex is often studied in unanesthetized, decerebrate rats. However, the relationship between the magnitude of this reflex and the number of thin fiber afferents stimulated by muscle contraction is unknown. This lack of knowledge prompted us to test the hypothesis that the magnitude of the exercise pressor reflex was directly proportional to the amount of muscle mass activated. Muscle mechanoreceptors were stimulated by stretching the calcaneal tendon. Likewise, muscle metaboreceptors were stimulated by injecting lactic acid into the arterial supply of the hindlimb muscles. In addition, both muscle mechanoreceptors and metaboreceptors were stimulated by statically contracting the hindlimb muscles. We found that simultaneous bilateral (both hindlimbs) stimulation of thin fiber afferents with stretch, lactic acid, and static contraction evoked significantly greater pressor responses than did unilateral (one hindlimb) stimulation of these afferents. In addition, the magnitude of the pressor responses to bilateral simultaneous stimulation of thin fiber afferents evoked by stretch, lactic acid, and contraction was not significantly different from the magnitude of the sum of the pressor responses evoked by unilateral stimulation of these afferents by stretch, lactic acid, and contraction. We conclude that the magnitude of the exercise pressor reflex and its two components is dependent on the number of afferents stimulated.

Indexed as

Decerebrate StateAnimalsBlood PressureHindlimbMaleMuscle ContractionMuscle, SkeletalRatsRats, Sprague-DawleyReflexlactic acidmechanoreceptorsmetaboreceptorsstatic contractionsympathetic nervous systemtendon stretchthin fiber afferents

Identifiers

PMID31664869
PMCPMC6985797

What OpenQuestion holds

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Registered trials

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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.