Evidence map›Paper›PMID 34899396›Full record

ArticleFrontiers in physiology2021

Comparison of V̇O

Jonathan Wagner, Max Niemeyer, Denis Infanger, Otmar Pfister, Jonathan Myers, Arno Schmidt-Trucksäss, Raphael Knaier

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Frontiers in physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 34% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Trial
  2. Respiratory exchange ratio overshoot during exercise recovery: a promising prognostic marker in HFrEF.Clinical research in cardiology : official journal of the German Cardiac Society · 2026
    Article
  3. 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

7 authors at 3 institutions in 3 countries.

Jonathan WagnerDivision of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Max NiemeyerDepartment of Medicine, Training and Health, Institute of Sports Science and Motologie, Philipps-University Marburg, Marburg, Germany.
Denis InfangerDivision of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Otmar PfisterDepartment of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.
Jonathan MyersCardiology Division, Veterans Affairs (VA) Palo Alto Health Care System, Stanford University, Palo Alto, CA, United States.
Arno Schmidt-TrucksässDivision of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
Raphael KnaierDivision of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland.
University of Basel · CHPhilipps University of Marburg · DEStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PubMed holds no abstract for this paper.

Indexed as

CRFheart failurerisk stratificationV̇O2-kineticsV̇O2max

Identifiers

PMID34899396
PMCPMC8660573
OpenAlexW3216679799

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.