Evidence map›Paper›PMID 28495570›Full record

ArticleRespiratory physiology & neurobiology2017

Effect of chronic heart failure in older rats on respiratory muscle and hindlimb blood flow during submaximal exercise.

Joshua R Smith, K Sue Hageman, Craig A Harms, David C Poole, Timothy I Musch

Open access · greenAbstract read
In one paragraph

Article in Respiratory physiology & neurobiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
6.7field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 27 citations in OpenAlex.

  1. Obligatory neural feedback control of exercise cardiorespiratory function and performance.Journal of applied physiology (Bethesda, Md. : 1985) · 2025
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  19. Resistive and elastic work of breathing in older and younger adults during exercise.Journal of applied physiology (Bethesda, Md. : 1985) · 2018
    Article
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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.

Joshua R SmithDepartment of Kinesiology, Kansas State University, Manhattan, KS, 66506, USA. Electronic address: smith424@ksu.edu.
K Sue HagemanDepartment of Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA.
Craig A HarmsDepartment of Kinesiology, Kansas State University, Manhattan, KS, 66506, USA.
David C PooleDepartment of Kinesiology, Kansas State University, Manhattan, KS, 66506, USA; Department of Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA.
Timothy I MuschDepartment of Kinesiology, Kansas State University, Manhattan, KS, 66506, USA; Department of Anatomy and Physiology, Kansas State University, Manhattan, KS, 66506, USA.
Kansas State University · US

Funding

Mechanisms of Muscle Microcirculatory Dysfunction in Heart FailureR15HL108328 · NHLBI · KANSAS STATE UNIVERSITY · PI POOLE, DAVID C · 2011 to 2015
$741k
NHLBI NIH HHS R15 HL108328
6 · The paper itself

Abstract

Submaximal exercise diaphragm blood flow (BF) is elevated in young chronic heart failure (CHF) rats, while it is unknown if this occurs in older animals. Respiratory and hindlimb muscle BFs (radiolabeled microspheres) were measured at rest and during submaximal exercise (20m/min, 5% grade) in older healthy (n=7) and CHF (n=6) Fischer 344X Brown Norway rats (27-29 mo old). Older CHF, compared to healthy, rats had greater (p<0.01) left ventricular end-diastolic pressure and right ventricle and lung weight (normalized to body weight). During submaximal exercise, respiratory and hindlimb muscle BFs increased (p<0.02) in both groups, while diaphragm BF was higher (CHF: 257±32; healthy: 121±9mL/min/100g, p<0.01) and hindlimb BF lower (CHF: 111±10; healthy: 133±12mL/min/100g, p=0.04) in older CHF compared to healthy rats. Submaximal exercise hindlimb BF was negatively related (r=-0.93; p=0.03) to diaphragm BF in older CHF rats. During submaximal exercise, diaphragm BF is elevated in older CHF compared to healthy rats in proportion to the compromised hindlimb BF.

Indexed as

AgingAnimalsBlood PressureBody WeightChronic DiseaseDisease Models, AnimalHeart FailureHeart RateHindlimbMalePhysical Conditioning, AnimalRatsRats, Inbred F344Regional Blood FlowRespiratory MusclesAgingDiaphragmInspiratory muscle metaboreflexIntercostalsPulmonary congestion

Identifiers

PMID28495570
PMCPMC5724384
OpenAlexW2610593762

What OpenQuestion holds

Textmetadata
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.