Evidence map›Paper›PMID 32862247›Full record

ArticleEuropean journal of applied physiology2020

Blunted cardiac output response to exercise in adolescents born preterm.

Kristin Haraldsdottir, Andrew M Watson, David F Pegelow, Mari Palta, Laura H Tetri, Taylor Levin, Melissa D Brix, Ryan M Centanni, Kara N Goss, Marlowe M Eldridge

Abstract read
In one paragraph

Article in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 6 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

20 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Lung volumes, gas transfer and oscillometry after preterm birth: systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  2. Physiological responses to exercise in survivors of preterm birth: a meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  3. Impaired lung function and associated risk factors in children born prematurely: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2024
    Pooled it
  4. Pooled it
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  15. Understanding the preterm human heart: What do we know so far?Anatomical record (Hoboken, N.J. : 2007) · 2022
    Review
  16. Exercise-induced irregular right heart flow dynamics in adolescents and young adults born preterm.Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance · 2021
    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

10 authors.

Kristin HaraldsdottirDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA. haraldsdottir@ortho.wisc.edu.ORCID http://orcid.org/0000-0002-9702-3430
Andrew M WatsonDepartment of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, USA.
David F PegelowDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Mari PaltaDepartment of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, USA.
Laura H TetriDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Taylor LevinDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Melissa D BrixDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Ryan M CentanniDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Kara N GossDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.
Marlowe M EldridgeDepartment of Pediatrics, University of Wisconsin-Madison, Madison, USA.

Funding

Viral VectorP30CA086862 · NCI · UNIVERSITY OF IOWA · PI Christopher K Laubenthal · 2000 to 2026
$70.0M
Training Program in Translational Cardiovascular Science (TPTCS)T32HL007936 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI Lee Lochbaum Eckhardt, Gail A Robertson · 2001 to 2026
$11.6M
INTEGRATED TRAINING FOR PHYSICIAN-SCIENTISTST32GM008692 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI BURKARD, MARK E · 1998 to 2020
$10.3M
Right Heart-Pulmonary Vascular Interactions in Bronchopulmonary DysplasiaR01HL115061 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI ELDRIDGE, MARLOWE · 2012 to 2016
$3.2M
Comprehensive Characterization of Intrapulmonary Arteriovenous Pathways in HealthR01HL086897 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI ELDRIDGE, MARLOWE · 2008 to 2012
$1.8M
Foundation for the National Institutes of Health HL086897NCI NIH HHS P30 CA086862NHLBI NIH HHS R01 HL086897NHLBI NIH HHS R01 HL115061NHLBI NIH HHS T32 HL007936School of Medicine and Public Health, University of Wisconsin-Madison T32- HL 07936
6 · The paper itself

Abstract

purposePremature birth is associated with lasting effects, including lower exercise capacity and pulmonary function, and is acknowledged as a risk factor for cardiovascular disease. The aim was to evaluate factors affecting exercise capacity in adolescents born preterm, including the cardiovascular and pulmonary responses to exercise, activity level and strength.

methods21 preterm-born and 20 term-born adolescents (age 12-14 years) underwent strength and maximal exercise testing with thoracic bioimpedance monitoring. Baseline variables were compared between groups and ANCOVA was used to compare heart rate, cardiac output (Q) and stroke volume (SV) during exercise between groups while adjusting for body surface area.

resultsPreterm-borns had lower maximal aerobic capacity than term-borns (2.0 ± 0.5 vs. 2.5 ± 0.5 L/min, p = 0.01) and lower maximal power (124 ± 26 vs. 153 ± 33 watts, p < 0.01), despite similar physical activity scores. Pulmonary function and muscular strength did not differ significantly. Although baseline Q and SV did not differ between groups, preterm adolescents had significantly lower cardiac index (Qi) at 50, 75 and 100% of maximal time to exhaustion, driven by SV volume index (SVi, 50% max time: 53.0 ± 9.0 vs. 61.6 ± 11.4; 75%: 51.7 ± 8.4 vs. 64.3 ± 11.1; 100%: 51.2 ± 9.3 vs. 64.3 ± 11.5 ml/m

conclusionOtherwise healthy and physically active adolescents born very preterm exhibit lower exercise capacity than term-born adolescents. Despite similar baseline cardiovascular values, preterm-born adolescents demonstrate significantly reduced Qi and SVi during incremental and maximal exercise.

Indexed as

Cardiac OutputExercise ToleranceAdolescentCardiovascular DiseasesExercise TestFemaleHeart RateHumansInfant, NewbornInfant, PrematureInfant, Very Low Birth WeightMaleMuscle, SkeletalRespirationAerobic capacityCardiac outputCardiovascular diseaseExercise capacityPediatric exercise physiologyPhysical activityPremature birthPreterm birthStroke indexThoracic bioimpedance

Identifiers

PMID32862247
PMCPMC12908129

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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.