Muscle oxygenation and time to task failure of submaximal holding and pulling isometric muscle actions and influence of intermittent voluntary muscle twitches.

Silas Dech, Frank N Bittmann, Laura V Schaefer

Open access · goldAbstract read

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Article in BMC sports science, medicine & rehabilitation, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing papers in PubMed

0.1field-weighted citation impact, top 66% 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

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0 citing papers in PubMed, 1 citations in OpenAlex.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Silas DechDepartment of Sport and Health Sciences, Regulative Physiology and Prevention, Human Science Faculty, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14479, Potsdam, Germany. dech@uni-potsdam.de.ORCID http://orcid.org/0000-0002-8914-8276

Frank N BittmannDepartment of Sport and Health Sciences, Regulative Physiology and Prevention, Human Science Faculty, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14479, Potsdam, Germany.ORCID http://orcid.org/0000-0003-4514-8060

Laura V SchaeferDepartment of Sport and Health Sciences, Regulative Physiology and Prevention, Human Science Faculty, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14479, Potsdam, Germany.ORCID http://orcid.org/0000-0002-6289-6987

University of Potsdam · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIsometric muscle actions can be performed either by initiating the action, e.g., pulling on an immovable resistance (PIMA), or by reacting to an external load, e.g., holding a weight (HIMA). In the present study, it was mainly examined if these modalities could be differentiated by oxygenation variables as well as by time to task failure (TTF). Furthermore, it was analyzed if variables are changed by intermittent voluntary muscle twitches during weight holding (Twitch). It was assumed that twitches during a weight holding task change the character of the isometric muscle action from reacting (≙ HIMA) to acting (≙ PIMA).

methodsTwelve subjects (two drop outs) randomly performed two tasks (HIMA vs. PIMA or HIMA vs. Twitch, n = 5 each) with the elbow flexors at 60% of maximal torque maintained until muscle failure with each arm. Local capillary venous oxygen saturation (SvO

resultsWithin subjects, no significant differences were found between tasks regarding the behavior of SvO

conclusionsHIMA and PIMA seem to have a similar microvascular oxygen and blood supply. The supply might be sufficient, which is expressed by homeostatic steady states of SvO

Indexed as

Holding isometric muscle actionIsometric contractionIsometric muscle actionMicrovascular blood fillingMuscle twitchOxygen saturationPulling isometric muscle actionPushing isometric muscle actionTime to task failure

Identifiers

PMID35354469

DOI10.1186/s13102-022-00447-9

PMCPMC8966203

OpenAlexW4225699242

What OpenQuestion holds

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LicenceCC BY

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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.