Evidence map›Paper›PMID 22517928›Full record

ArticleEuropean journal of preventive cardiology2013

Dynamic assessment of ventilatory efficiency during recovery from peak exercise to enhance cardiopulmonary exercise testing.

Alexandra Zavin, Ross Arena, Jacob Joseph, Kelly Allsup, Karla Daniels, P Christian Schulze, Stewart Lecker, Daniel E Forman

Abstract read
In one paragraph

Article in European journal of preventive cardiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Article
  4. Article
  5. Article
  6. 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

8 authors.

Alexandra ZavinNew England Geriatric Research, Education, and Clinical Center, VA Boston Healthcare System, USA.
Ross Arena
Jacob Joseph
Kelly Allsup
Karla Daniels
P Christian Schulze
Stewart Lecker
Daniel E Forman

Funding

Cardiac and Skeletal Muscle Metabolism and Proteolysis in Heart FailureK23HL095742 · NHLBI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SCHULZE, P. CHRISTIAN · 2009 to 2013
$677k
NHLBI NIH HHS K23 HL095742
6 · The paper itself

Abstract

backgroundWhile cardiopulmonary exercise testing (CPX) assessment is generally regarded as an optimal means to assess functional capacity in heart failure (HF) patients, strength parameters are omitted. CPX indices collected in recovery may provide additional insight regarding function, including strength. DESIGN AND

methodsWe performed a cross-sectional controlled study. Systolic HF patients (aged ≥ 50 years) and age-matched controls were assessed using CPX and strength evaluations. Standard CPX indices were assessed during exercise (peak oxygen consumption [VO2], first ventilatory threshold [1stVT], and ventilatory efficiency [VE/VCO2 slope]) as well as indices at 1-minute recovery (1 min VO2, 1 min VE/VCO2, and 1 min heart rate recovery [HRR]) and differences between peak and 1-minute recovery (ΔVO₂ and ΔVE/VCO₂). Lower extremity strength was evaluated using the 1-repetition maximum (1RM) and power.

resultsSeventy adults (31 HF; 39 controls), mean age 66.2 ± 9.7 years were evaluated. Peak VO2 (15.4 ± 4.2 versus 23.4 ± 6.6 mlO₂·kg(-1)·min(-1), p < 0.0001) and 1stVT (10.9 ± 2.1 versus 14.4 ± 4.0 mlO₂·kg(-1)·min(-1), p < 0.0001) were diminished in HF versus controls and VE/VCO2 slope was increased (42.3 ± 12.2 versus 35.4 ± 8.3, p < 0.01). HF patients had reduced 1 minVO₂ (13.1 ± 2.9 versus 16.3 ± 3.7 mlO₂·kg(-1)·min(-1), p < 0.0001), 1 min HRR (6.7 ± 11.4 versus 12.4 ± 7.6 beats, p < 0.02), and ΔVO₂ (2.43 ± 2.3 versus 7.3 ± 5.0 mlO₂·kg(-1)·min(-1), p < 0.0001) as well as increased 1 min VE/VCO2 (37 ± 7.5 versus 31.5 ± 4.4, p < 0.001) and ΔVE/VCO₂ (1.17 ± 3.0 versus -0.5 ± 1.3, p < 0.0001). Strength parameters were relatively lower in HF. While CPX exercise parameters correlated with strength, stronger correlations were observed between CPX recovery parameters and strength.

conclusionsCPX recovery indices corroborate disease-specific aerobic differences and distinguish differences in strength. Recovery ventilatory efficiency enhances CPX's value as a comprehensive physical function tool.

Indexed as

Exercise TestExercise ToleranceMuscle ContractionPulmonary VentilationAgedCase-Control StudiesCross-Sectional StudiesHeart FailureHeart RateHumansLungMaleMiddle AgedMuscle, SkeletalMuscle StrengthOxygen Consumptioncardiopulmonary functional testingHeart failuremuscular strengthrecovery kinetics

Identifiers

PMID22517928
PMCPMC7240171

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.