Evidence map›Paper›PMID 21364944›Full record

Trial reportPloS one2011

Neuromuscular consequences of an extreme mountain ultra-marathon.

Guillaume Y Millet, Katja Tomazin, Samuel Verges, Christopher Vincent, Régis Bonnefoy, Renée-Claude Boisson, Laurent Gergelé, Léonard Féasson, Vincent Martin

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02014233 (The Effect of Short Term Omega-3 Supplementation on Exercise Performance and Neuromuscular Function.), which is not on this map. Cited by 106 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed, 1 pooled it
14.5field-weighted citation impact, top 1% 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.

NCT02014233 nacompletednot on this mapstarted 2013, after this paper: background citation

The Effect of Short Term Omega-3 Supplementation on Exercise Performance and Neuromuscular Function.

TypeinterventionalSponsorUniversity of TorontoRan2013 to 2014Enrolled30ConditionsMuscle Fatigue, Muscle StrengthArmsOmega-3, Olive oil
3 · Its place in the literature

Who cites it

106 citing papers in PubMed, 1 synthesis or guideline pooled it, 241 citations in OpenAlex.

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46 more citing papers are in PubMed but not listed here.

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

9 authors at 6 institutions in 1 country.

Guillaume Y MilletUniversité de Lyon, F-42023, Saint-Etienne, France. guillaume.millet@univ-st-etienne.fr
Katja Tomazin
Samuel Verges
Christopher Vincent
Régis Bonnefoy
Renée-Claude Boisson
Laurent Gergelé
Léonard Féasson
Vincent Martin
Université Claude Bernard Lyon 1 · FRCentre Hospitalier Universitaire de Saint-Étienne · FRHospices Civils de Lyon · FRUniversité Clermont Auvergne · FRUniversité Jean Monnet · FRUniversité Joseph Fourier · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the physiological consequences of one of the most extreme exercises realized by humans in race conditions: a 166-km mountain ultra-marathon (MUM) with 9500 m of positive and negative elevation change. For this purpose, (i) the fatigue induced by the MUM and (ii) the recovery processes over two weeks were assessed. Evaluation of neuromuscular function (NMF) and blood markers of muscle damage and inflammation were performed before and immediately following (n = 22), and 2, 5, 9 and 16 days after the MUM (n = 11) in experienced ultra-marathon runners. Large maximal voluntary contraction decreases occurred after MUM (-35% [95% CI: -28 to -42%] and -39% [95% CI: -32 to -46%] for KE and PF, respectively), with alteration of maximal voluntary activation, mainly for KE (-19% [95% CI: -7 to -32%]). Significant modifications in markers of muscle damage and inflammation were observed after the MUM as suggested by the large changes in creatine kinase (from 144 ± 94 to 13,633 ± 12,626 UI L(-1)), myoglobin (from 32 ± 22 to 1,432 ± 1,209 µg L(-1)), and C-Reactive Protein (from <2.0 to 37.7 ± 26.5 mg L(-1)). Moderate to large reductions in maximal compound muscle action potential amplitude, high-frequency doublet force, and low frequency fatigue (index of excitation-contraction coupling alteration) were also observed for both muscle groups. Sixteen days after MUM, NMF had returned to initial values, with most of the recovery process occurring within 9 days of the race. These findings suggest that the large alterations in NMF after an ultra-marathon race are multi-factorial, including failure of excitation-contraction coupling, which has never been described after prolonged running. It is also concluded that as early as two weeks after such an extreme running exercise, maximal force capacities have returned to baseline.

Indexed as

AdultElectric StimulationElectromyographyHumansMaleMiddle AgedMotor NeuronsMountaineeringMuscle ContractionMuscle FatigueMuscle, SkeletalMuscular DiseasesPerceptionPhysical EndurancePhysical ExertionRunning

Identifiers

PMID21364944
PMCPMC3043077
OpenAlexW2070561881

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.