Evidence map›Paper›PMID 32813644›Full record

ArticleJournal of sport and health science2021

Blood flow restriction in human skeletal muscle during rest periods after high-load resistance training down-regulates miR-206 and induces Pax7.

Ferenc Torma, Zoltan Gombos, Marcell Fridvalszki, Gergely Langmar, Zsofia Tarcza, Bela Merkely, Hisashi Naito, Noriko Ichinoseki-Sekine, Masaki Takeda, Zsolt Murlasits and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Journal of sport and health science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 28 citations in OpenAlex.

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  10. Acute Effects of Ischemic Intra-Conditioning on 30 m Sprint Performance.International journal of environmental research and public health · 2022
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  17. Tumor Cell-Derived Exosomal miR-770 Inhibits M2 Macrophage PolarizationFrontiers in cell and developmental biology · 2021
    Article
  18. Review
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

12 authors at 5 institutions in 3 countries.

Ferenc TormaResearch Center for Molecular Exercise Science, University of Physical Education, Budapest 1123, Hungary.
Zoltan GombosResearch Center for Molecular Exercise Science, University of Physical Education, Budapest 1123, Hungary.
Marcell FridvalszkiDepartment of Kinesiology, University of Physical Education, Budapest 1123, Hungary.
Gergely LangmarDepartment of Kinesiology, University of Physical Education, Budapest 1123, Hungary.
Zsofia TarczaHeart and Vascular Center, Semmelweis University, Budapest 1122, Hungary.
Bela MerkelyHeart and Vascular Center, Semmelweis University, Budapest 1122, Hungary.
Hisashi NaitoFaculty of Health and Sports Science, Juntendo University, Chiba 270-1695, Japan.
Noriko Ichinoseki-SekineFaculty of Health and Sports Science, Juntendo University, Chiba 270-1695, Japan.
Masaki TakedaFaculty of Health and Sports Science, Doshisha University, Kyotanabe 610-0394, Japan.
Zsolt MurlasitsLaboratory of Animal Research Center, Qatar University, Doha 2713, Qatar.
Peter OsvathDepartment of Health Sciences and Sport Medicine, University of Physical Education, Budapest 1123, Hungary.
Zsolt RadakResearch Center for Molecular Exercise Science, University of Physical Education, Budapest 1123, Hungary. Electronic address: radak.zsolt@tf.hu.
University of Physical Education · HUJuntendo University · JPSemmelweis University · HUDoshisha University · JPQatar University · QA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroudBlood flow restriction (BFR) with low-intensity resistance training has been shown to result in hypertrophy of skeletal muscle. In this study, we tested the hypothesis that BFR during the rest periods between acute, high-intensity resistance exercise sessions (70% of 1 repetition maximum, 7 sets with 10 repetitions) enhances the effects of the resistance training.

methodsA total of 7 healthy young men performed squats, and between sets BFR was carried out on one leg while the other leg served as a control. Because BFR was applied during rest periods, even severe occlusion pressure (approximately 230 mmHg), which almost completely blocked blood flow, was well-tolerated by the participants. Five muscle-specific microRNAs were measured from the biopsy samples, which were taken 2 h after the acute training.

resultsDoppler data showed that the pattern of blood flow recovery changed significantly between the first and last BFR. microRNA-206 levels significantly decreased in the BFR leg compared to the control. The mRNA levels of RAC-β serine/threonine-protein kinase v22, nuclear respiratory factor 1, vascular endothelial growth factor, lupus Ku autoantigen protein p70 genes (p < 0.05), and paired box 7 (p < 0.01) increased in the BFR leg. The protein levels of paired box 7, nuclear respiratory factor 1, and peroxisome proliferator-activated receptor γ coactivator 1α did not differ between the BFR leg and the control leg.

conclusionBFR, during the rest periods of high-load resistance training, could lead to mRNA elevation of those proteins that regulate angiogenesis, mitochondrial biogenesis, and muscle hypertrophy and repair. However, BFR also can cause DNA damage, judging from the increase in mRNA levels of lupus Ku autoantigen protein p70.

Indexed as

AdultConstrictionDown-RegulationHealthy VolunteersHumansKu AutoantigenLower ExtremityMaleMicroRNAsMuscle, SkeletalPAX7 Transcription FactorRegional Blood FlowResistance TrainingTourniquetsYoung AdultKu AutoantigenMicroRNAsMIRN206 microRNA, humanPAX7 protein, humanPAX7 Transcription FactorBlood flow restrictionHigh-intensity resistance trainingmicroRNASatellite cells

Identifiers

PMID32813644
PMCPMC8343007
OpenAlexW2970519206

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.