Evidence map›Paper›PMID 33484333›Full record

ArticleEuropean journal of applied physiology2021

Similar performance fatigability and neuromuscular responses following sustained bilateral tasks above and below critical force.

Joshua L Keller, Terry J Housh, John Paul V Anders, Tyler J Neltner, Richard J Schmidt, Glen O Johnson

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In one paragraph

Article in European journal of applied physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.2field-weighted citation impact, top 25% 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

7 citing papers in PubMed, 16 citations in OpenAlex.

  1. Which Frequency of Ankle Pump Exercise Should Be Chosen for the Prophylaxis of Deep Vein Thrombosis?Inquiry : a journal of medical care organization, provision and financing
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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 1 country.

Joshua L KellerDepartment of Health, Kinesiology and Sport, College of Education and Professional Studies, University of South Alabama, 171 Jaguar Dr. HKS 1008, Mobile, AL, 36688, USA. jkeller@southalabama.edu.ORCID http://orcid.org/0000-0003-0756-9358
Terry J HoushDepartment of Nutrition and Health Sciences, College of Education and Human Sciences, Exercise Physiology Laboratory, University of NE, 1740 Vine Street Lincoln, Lincoln, NE, 68508, USA.
John Paul V AndersDepartment of Nutrition and Health Sciences, College of Education and Human Sciences, Exercise Physiology Laboratory, University of NE, 1740 Vine Street Lincoln, Lincoln, NE, 68508, USA.
Tyler J NeltnerDepartment of Nutrition and Health Sciences, College of Education and Human Sciences, Exercise Physiology Laboratory, University of NE, 1740 Vine Street Lincoln, Lincoln, NE, 68508, USA.
Richard J SchmidtDepartment of Nutrition and Health Sciences, College of Education and Human Sciences, Exercise Physiology Laboratory, University of NE, 1740 Vine Street Lincoln, Lincoln, NE, 68508, USA.
Glen O JohnsonDepartment of Nutrition and Health Sciences, College of Education and Human Sciences, Exercise Physiology Laboratory, University of NE, 1740 Vine Street Lincoln, Lincoln, NE, 68508, USA.
University of Nebraska–Lincoln · USUniversity of South Alabama · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe present study examined the magnitude of performance fatigability as well as the associated limb- and intensity-specific neuromuscular patterns of responses during sustained, bilateral, isometric, leg extensions above and below critical force (CF).

methodsTwelve women completed three sustained leg extensions (1 below and 2 above CF) anchored to forces corresponding to RPE = 1, 5, and 8 (10-point scale). During each sustained leg extension, electromyographic (EMG) and mechanomyographic (MMG) amplitude (AMP) and mean power frequency (MPF) were assessed from each vastus lateralis in 5% of time-to-exhaustion (TTE) segments. Before and after each sustained leg extension, the subjects completed maximal voluntary isometric contractions (MVIC), and the percent decline was defined as performance fatigability. Polynomial regression was used to define the individual and composite neuromuscular and force values versus time relationships. Repeated-measures ANOVAs assessed differences in performance fatigability and TTE.

resultsThe grand mean for performance fatigability was 10.1 ± 7.6%. For TTE, the repeated-measures ANOVA indicated that there was a significant (p < 0.05) effect for Intensity, such that RPE = 1 > 5 > 8. There were similar neuromuscular patterns of response between limbs as well as above and below CF. EMG MPF, however, exhibited decreases only above CF.

conclusionsPerformance fatigability was unvarying above and below CF as well as between limbs. In addition, there were similar fatigue-induced motor unit activation strategies above and below CF, but peripheral fatigue likely contributed to a greater extent above CF.

Indexed as

Muscle FatigueFemaleHumansIsometric ContractionLegMuscle, SkeletalRandom AllocationResistance TrainingYoung AdultCritical forceFatigabilityNeuromuscularRatings of perceived exertion

Identifiers

PMID33484333
OpenAlexW3126090278

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.