Evidence map›Paper›PMID 32772246›Full record

Trial reportEuropean journal of applied physiology2020

Increased fascicle length but not patellar tendon stiffness after accentuated eccentric-load strength training in already-trained men.

Simon Walker, Joanne Trezise, Guy Gregory Haff, Robert U Newton, Keijo Häkkinen, Anthony J Blazevich

Open access · hybridAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in European journal of applied physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 4 pooled it
2.8field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 4 syntheses or guidelines pooled it, 23 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

6 authors at 2 institutions in 4 countries.

Simon WalkerNeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV223, 40014, Jyväskylä, Finland. simon.walker@jyu.fi.ORCID http://orcid.org/0000-0002-6804-0741
Joanne TreziseSchool of Medical and Health Sciences, Centre for Exercise and Sports Science Research, Edith Cowan University, Joondalup, WA, Australia.
Guy Gregory HaffSchool of Medical and Health Sciences, Centre for Exercise and Sports Science Research, Edith Cowan University, Joondalup, WA, Australia.ORCID http://orcid.org/0000-0002-0676-7750
Robert U NewtonSchool of Medical and Health Sciences, Centre for Exercise and Sports Science Research, Edith Cowan University, Joondalup, WA, Australia.ORCID http://orcid.org/0000-0003-0302-6129
Keijo HäkkinenNeuroMuscular Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Room VIV223, 40014, Jyväskylä, Finland.
Anthony J BlazevichSchool of Medical and Health Sciences, Centre for Exercise and Sports Science Research, Edith Cowan University, Joondalup, WA, Australia.ORCID http://orcid.org/0000-0003-1664-1614
Edith Cowan University · AUUniversity of Jyväskylä · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study examined whether additional external load during the eccentric phase of lower limb strength training exercises led to greater adaptations in knee extensor strength, muscle architecture, and patellar tendon properties than traditional concentric-eccentric training in already-trained men.

methodsTwenty-eight men accustomed to strength training were randomized to undertake 10 weeks of supervised traditional (TRAD) or accentuated eccentric loading (AEL) or continue their habitual unsupervised (CON) strength training. TRAD and AEL trained 2∙week

resultsAfter training, both TRAD and AEL significantly increased maximum concentric and isometric torque (p < 0.05), but only AEL increased eccentric torque (AEL: + 10 ± 9%, TRAD: + 4 ± 9%) and vastus lateralis (AEL: + 14 ± 14%, TRAD: + 1 ± 10%) and medialis (AEL: + 19 ± 8%, TRAD: + 5 ± 11%) fascicle length.

conclusionBoth TRAD and AEL increased maximum knee extensor strength but only AEL increased VL and VM fascicle length. Neither training program promoted changes in fascicle angle or changes in patellar tendon properties in our already-trained men.

Indexed as

FasciaHumansIsometric ContractionMaleMuscle, SkeletalPatellar LigamentPhysical FitnessResistance TrainingTorqueYoung AdultAdaptationEccentric overloadMechanical propertiesMuscle architectureResistance training

Identifiers

PMID32772246
PMCPMC7560914
OpenAlexW3048349520

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.