Evidence map›Paper›PMID 35330195›Full record

ArticleLife (Basel, Switzerland)2022

Determination of the Respiratory Compensation Point by Detecting Changes in Intercostal Muscles Oxygenation by Using Near-Infrared Spectroscopy.

Felipe Contreras-Briceño, Maximiliano Espinosa-Ramirez, Vicente Keim-Bagnara, Matías Carreño-Román, Rafael Rodríguez-Villagra, Fernanda Villegas-Belmar, Ginés Viscor, Luigi Gabrielli, Marcelo E Andía, Oscar F Araneda and 1 more

Abstract read
In one paragraph

Article in Life (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

11 authors.

Felipe Contreras-BriceñoLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0002-0674-7506
Maximiliano Espinosa-RamirezLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0002-0840-1904
Vicente Keim-BagnaraLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Matías Carreño-RománLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0003-0609-1364
Rafael Rodríguez-VillagraLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Fernanda Villegas-BelmarLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Ginés ViscorPhysiology Section, Department of Cell Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain.ORCID 0000-0003-4942-2346
Luigi GabrielliLaboratory of Exercise Physiology, Department of Health Science, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.
Marcelo E AndíaBiomedical Imaging Center, School of Medicine, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0002-1251-5832
Oscar F AranedaLaboratory of Integrative Physiology of Biomechanics and Physiology of Effort (LIBFE), Kinesiology School, Faculty of Medicine, Universidad de los Andes, Santiago 7620001, Chile.
Daniel E HurtadoDepartment of Structural and Geotechnical Engineering, School of Engineering, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile.ORCID 0000-0001-6261-9106

Funding

ANID-Millennium Science Initiative Program ICN2021_004
6 · The paper itself

Abstract

This study aimed to evaluate if the changes in oxygen saturation levels at intercostal muscles (SmO2-m.intercostales) assessed by near-infrared spectroscopy (NIRS) using a wearable device could determine the respiratory compensation point (RCP) during exercise. Fifteen healthy competitive triathletes (eight males; 29 ± 6 years; height 167.6 ± 25.6 cm; weight 69.2 ± 9.4 kg; V˙O2-máx 58.4 ± 8.1 mL·kg−1·min−1) were evaluated in a cycle ergometer during the maximal oxygen-uptake test (V˙O2-máx), while lung ventilation (V˙E), power output (watts, W) and SmO2-m.intercostales were measured. RCP was determined by visual method (RCPvisual: changes at ventilatory equivalents (V˙E·V˙CO2−1, V˙E·V˙O2−1) and end-tidal respiratory pressure (PetO2, PetCO2) and NIRS method (RCPNIRS: breakpoint of fall in SmO2-m.intercostales). During exercise, SmO2-m.intercostales decreased continuously showing a higher decrease when V˙E increased abruptly. A good agreement between methods used to determine RCP was found (visual vs NIRS) at %V˙O2-máx, V˙O2, V˙E, and W (Bland-Altman test). Correlations were found to each parameters analyzed (r = 0.854; r = 0.865; r = 0.981; and r = 0,968; respectively. p < 0.001 in all variables, Pearson test), with no differences (p < 0.001 in all variables, Student’s t-test) between methods used (RCPvisual and RCPNIRS). We concluded that changes at SmO2-m.intercostales measured by NIRS could adequately determine RCP in triathletes.

Indexed as

exercisenear-infrared spectroscopyoxygen uptakerespiratory compensation pointrespiratory muscles

Identifiers

PMID35330195
PMCPMC8954259

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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.