Evidence map›Paper›PMID 16328195›Full record

ArticleEuropean journal of applied physiology2006

Blood flow does not limit skeletal muscle force production during incremental isometric contractions.

D M Wigmore, K Propert, J A Kent-Braun

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Article in European journal of applied physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
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

22 citing papers in PubMed.

  1. Trial
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  9. Article
  10. Article
  11. Frontiers in physiology · 2018
    Article
  12. Article
  13. Muscle fatigue: general understanding and treatment.Experimental & molecular medicine · 2017
    Review
  14. The brain behaves as a muscle?Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2017
    Article
  15. Article
  16. Article
  17. Blood flow and muscle oxygenation during low, moderate, and maximal sustained isometric contractions.American journal of physiology. Regulatory, integrative and comparative physiology · 2015
    Article
  18. Article
  19. Article
  20. Physiological effects of the TASER C2 conducted energy weapon.Forensic science, medicine, and pathology · 2009
    Article
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

3 authors.

D M WigmoreDepartment of Exercise Science, University of Massachusetts, Amherst, MA 01003, USA.
K Propert
J A Kent-Braun

Funding

Skeletal Muscle Fatigue in Older AdultsR01AG021094 · NIA · UNIVERSITY OF MASSACHUSETTS AMHERST · PI KENT, JANE A · 2002 to 2011
$2.9M
NIA NIH HHS R01 AG 21094
6 · The paper itself

Abstract

It has been suggested that a transient limitation in blood flow during intermittent muscular contractions can contribute to muscle fatigue, and that this limitation is greater as contraction intensity increases. We investigated skeletal muscle blood flow and fatigue in 13 healthy, untrained men (21-27 years) during 16 min of intermittent (4 s contract, 6 s relax) isometric dorsiflexor contractions. Contractions began at 10% of pre-exercise maximal voluntary contraction (MVC) force and increased by 10% every 2 min. Hyperemia (i.e., post-contraction blood flow, measured by venous occlusion plethysmography) and MVC were measured at the end of each stage. Muscle volume measures were obtained using magnetic resonance imaging. After 10 min of exercise, submaximal force and post-contraction hyperemia plateaued. MVC fell from 8 min of exercise onwards (p=0.004), and this onset of fatigue preceded the plateau in submaximal force and hyperemia. Despite a large range in dorsiflexor muscle size (66.3-176.4 cm(3)) and strength (112.5-421.8 N), neither muscle size nor strength were related to fatigue. The temporal dissociation between changes in blood flow and the onset of fatigue (fall of MVC) suggest that limited blood flow was not a factor in the impaired force production observed during intermittent isometric dorsiflexor contractions in healthy young men. Additionally, post-contraction hyperemia increased linearly with increasing contraction intensity, reflecting a match between blood flow and force production throughout the protocol that was independent of fatigue.

Indexed as

Isometric ContractionMuscle FatigueMuscle RelaxationAdultHumansHyperemiaMaleMuscle, Skeletal

Identifiers

What OpenQuestion holds

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Registered trials

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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.