Evidence map›Paper›PMID 40814059›Full record

ArticleBMC sports science, medicine & rehabilitation2025

Twelve weeks of respiratory muscle training enhance respiratory function in CrossFit

Diego Fernández-Lázaro, Jesús Seco-Calvo, Gema Santamaría, David Jerves Donoso, Enrique Roche, Manuel Garrosa

Registry-linked trialAbstract read
In one paragraph

Article in BMC sports science, medicine & rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06806124 (Analysis of Hematological Biomarkers, Muscle Respiratory Function and Sports Performance in CrossFit® Athletes Using the Elevation Training Mask 2.0 Upon Return to a High-intensity Training Program After Recovering from COVID-19. a Single-blind, Multicenter, Randomized Clinical Trial.), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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.

NCT06806124 nacompletednot on this map

Analysis of Hematological Biomarkers, Muscle Respiratory Function and Sports Performance in CrossFit® Athletes Using the Elevation Training Mask 2.0 Upon Return to a High-intensity Training Program After Recovering from COVID-19. a Single-blind, Multicenter, Randomized Clinical Trial.

TypeinterventionalSponsorUniversity of ValladolidRan2022 to 2023Enrolled20ConditionsCOVID19- Infection with SARS-CoV-2 Virus, SARS-CoV-2 Positive Patients, COVID-19 Pulmonary Complications, SARS-CoV-2 Infection (Symptomatic)ArmsElevation Training Mask, Sham Elevation Training Mask
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Diego Fernández-LázaroDepartment of Cellular Biology, Genetics, Histology and Pharmacology, Faculty of Health Sciences, University of Valladolid, Soria Campus, Soria, 42004, Spain. diego.fernandez.lazaro@uva.es.ORCID http://orcid.org/0000-0002-6522-8896
Jesús Seco-CalvoInstitute of Biomedicine (IBIOMED), Department of Nursing and Physiotherapy, University of León, Vegazana Campus, León, 24071, Spain.
Gema SantamaríaDepartment of Anatomy and Radiology, Faculty of Health Sciences, University of Valladolid, Soria Campus, Soria, 42004, Spain.
David Jerves DonosoPneumology Department of Soria, University Assistance Complex (CAUSO), Santa Bárbara Hospital, Castille and Leon Health (SACyL), Soria, 42003, Spain.
Enrique RocheDepartment of Applied Biology-Nutrition, Institute of Bioengineering, Miguel Hernández University, Elche, 03202, Spain.
Manuel GarrosaNeurobiology Research Group, Faculty of Medicine, University of Valladolid, Valladolid, 47005, Spain.

Funding

Ministerio de Ciencia e Innovación PID2022-141358OBI00
6 · The paper itself

Abstract

backgroundThe Elevation Training Mask 2.0 (ETM) is a respiratory muscle device, designed to simulate altitude training. It works by reducing airflow through a valve system. During exercise, ETM could restore respiratory damage from post-infection phase of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), allowing ventilatory restriction that works as resistance training for respiratory muscles.

aimTo comparatively evaluate the spirometry parameters in CrossFit

methodsIn a single-blind randomized clinical trial, following the Consolidated Standards of Reporting Trials (CONSORT) recommendations, 20 trained male athletes were randomly assigned to an EG and a CG using simulated ETM device. Both groups completed 12 weeks of CrossFit

resultsNo significant differences (p > 0.05) were observed comparing EG and CG in any of spirometry parameters evaluated. Nevertheless, significant differences (p < 0.05) in behavior were observed throughout the 36 training sessions for maximum voluntary ventilation (MVV) and maximum inspiratory pressure (MIP) with a strong effect (η²p = 0.693). In addition, significant improvements (p < 0.05) were observed in MIP and MVV exclusively in the EG when comparing T1 vs. T2.

conclusionThe findings suggest that the inclusion of ETM in a 12-week CrossFit PROTOCOL REGISTRATION: ClinicalTrials.gov, identifier (ID NCT06806124). 25/01/2025 retrospectively registered.

Indexed as

CrossFit®Elevation training maskRespiratory muscles; SARS-CoV-2Spirometry parameters

Identifiers

PMID40814059
PMCPMC12351845

What OpenQuestion holds

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Registered trials

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.