Evidence map›Paper›PMID 26121248›Full record

ArticlePloS one2015

High Intensity Interval Training (HIIT) Induces Specific Changes in Respiration and Electron Leakage in the Mitochondria of Different Rat Skeletal Muscles.

Dionizio Ramos-Filho, Gustavo Chicaybam, Eduardo de-Souza-Ferreira, Camila Guerra Martinez, Eleonora Kurtenbach, Gustavo Casimiro-Lopes, Antonio Galina

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
11.4field-weighted citation impact, top 2% 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, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Dionizio Ramos-FilhoLaboratory of Bioenergetics and Mitochondrial Physiology-Institute of Medical Biochemistry Leopoldo de Meis-Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Gustavo ChicaybamLaboratory of Bioenergetics and Mitochondrial Physiology-Institute of Medical Biochemistry Leopoldo de Meis-Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Eduardo de-Souza-FerreiraLaboratory of Bioenergetics and Mitochondrial Physiology-Institute of Medical Biochemistry Leopoldo de Meis-Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Camila Guerra MartinezInstitute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Eleonora KurtenbachInstitute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Gustavo Casimiro-LopesInstitute of Physical Education and Sports-State University of Rio de Janeiro, UERJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Antonio GalinaLaboratory of Bioenergetics and Mitochondrial Physiology-Institute of Medical Biochemistry Leopoldo de Meis-Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, Rio de Janeiro, Brazil.
Universidade Federal do Rio de Janeiro · BRUniversidade do Estado do Rio de Janeiro · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

High intensity interval training (HIIT) is characterized by vigorous exercise with short rest intervals. Hydrogen peroxide (H2O2) plays a key role in muscle adaptation. This study aimed to evaluate whether HIIT promotes similar H2O2 formation via O2 consumption (electron leakage) in three skeletal muscles with different twitch characteristics. Rats were assigned to two groups: sedentary (n=10) and HIIT (n=10, swimming training). We collected the tibialis anterior (TA-fast), gastrocnemius (GAST-fast/slow) and soleus (SOL-slow) muscles. The fibers were analyzed for mitochondrial respiration, H2O2 production and citrate synthase (CS) activity. A multi-substrate (glycerol phosphate (G3P), pyruvate, malate, glutamate and succinate) approach was used to analyze the mitochondria in permeabilized fibers. Compared to the control group, oxygen flow coupled to ATP synthesis, complex I and complex II was higher in the TA of the HIIT group by 1.5-, 3.0- and 2.7-fold, respectively. In contrast, oxygen consumed by mitochondrial glycerol phosphate dehydrogenase (mGPdH) was 30% lower. Surprisingly, the oxygen flow coupled to ATP synthesis was 42% lower after HIIT in the SOL. Moreover, oxygen flow coupled to ATP synthesis and complex II was higher by 1.4- and 2.7-fold in the GAST of the HIIT group. After HIIT, CS activity increased 1.3-fold in the TA, and H2O2 production was 1.3-fold higher in the TA at sites containing mGPdH. No significant differences in H2O2 production were detected in the SOL. Surprisingly, HIIT increased H2O2 production in the GAST via complex II, phosphorylation, oligomycin and antimycin by 1.6-, 1.8-, 2.2-, and 2.2-fold, respectively. Electron leakage was 3.3-fold higher in the TA with G3P and 1.8-fold higher in the GAST with multiple substrates. Unexpectedly, the HIIT protocol induced different respiration and electron leakage responses in different types of muscle.

Indexed as

Electron TransportPhysical Conditioning, AnimalAnimalsBody WeightCell RespirationCitrate (si)-SynthaseEnergy MetabolismHydrogen PeroxideIntra-Abdominal FatMaleMitochondria, MuscleMuscle, SkeletalOrgan SizeOxidation-ReductionOxygen ConsumptionPhospholipid EthersCitrate (si)-SynthaseHydrogen PeroxidePhospholipid Ethers

Identifiers

PMID26121248
PMCPMC4488295
OpenAlexW792149719

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.