Evidence map›Paper›PMID 24752228›Full record

Trial reportEuropean journal of applied physiology2014

Changes in corticospinal excitability during an acute bout of resistance exercise in the elbow flexors.

Ilona Ruotsalainen, Juha P Ahtiainen, Dawson J Kidgell, Janne Avela

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in European journal of applied physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

11 citing papers in PubMed, 28 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

4 authors at 2 institutions in 2 countries.

Ilona RuotsalainenNeuromuscular Research Center, Department of Biology of Physical Activity, University of Jyväskylä, PL 35, 40014, Jyväskylä, Finland.
Juha P Ahtiainen
Dawson J Kidgell
Janne Avela
University of Jyväskylä · FIDeakin University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHypertrophic resistance exercise (HRE) induces central and peripheral fatigue. However, more detailed information about changes in corticospinal excitability remains to be elucidated.

methodsEleven volunteers participated in the upper arm HRE which included one repetition maximum (1 RM) control contractions and three sets of 13 RM (SET1-3). Transcranial magnetic stimulation (TMS) was applied during maximal isometric voluntary contraction (MVC) at the end of each set and during control contractions to study changes in corticospinal excitability. Electrical stimulation was used in order to measure peripheral changes.

resultsMVC decreased after each set when compared to control contractions. Motor evoked potential (MEP) were 138.7 ± 52.7 % (p < 0.05), 130.4 ± 44.7 and 113.1 ± 31.4 % after SET1, SET2 and SET3, respectively, when compared to pre-exercise value. A significant reduction in MEP area between SET1 and SET3 (p < 0.05) was observed while silent period (SP) duration increased (~151-165 ms, p < 0.05) simultaneously between these sets. TMS-evoked twitch force during MVC increased significantly following each set when compared to pre-exercise value. Simultaneously, a significant reduction was observed in resting twitch force over the sets.

conclusionsThe results of this study clearly support the existence of both central and peripheral fatigue during HRE of elbow flexors. However, changes in the MEP area and SP suggest that during HRE of the elbow flexors, the corticospinal excitability increases first, until at some point, supraspinal fatigue takes over.

Indexed as

Isometric ContractionMuscle FatigueResistance TrainingAdultElectric StimulationEvoked Potentials, MotorFemaleFinlandHumansMaleMuscle, SkeletalPyramidal TractsTime FactorsTranscranial Magnetic StimulationUpper ExtremityYoung Adult

Identifiers

PMID24752228
OpenAlexW2027970779

What OpenQuestion holds

Textmetadata
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.