Evidence map›Paper›PMID 25635001›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2015

Low-frequency stimulation regulates metabolic gene expression in paralyzed muscle.

Michael Petrie, Manish Suneja, Richard K Shields

3 registry-linked trialsOpen access · greenAbstract read
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
3.1field-weighted citation impact, top 9% 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.

NCT01093014 nacompletednot on this map

Novel Intervention to Influence Muscle Plasticity in Veterans

TypeinterventionalSponsorVA Office of Research and DevelopmentRan2011 to 2014Enrolled33ConditionsSpinal Cord InjuriesArmsLow-force muscle stimulation, High-force muscle stimulation, Sequential low-force and high-force muscle stimulation
NCT02622295 nacompletednot on this map

Musculoskeletal Plasticity After Spinal Cord Injury

TypeinterventionalSponsorRichard K ShieldsRan2015 to 2021Enrolled71ConditionsSpinal Cord InjuriesArmsSingle-session electrically induced exercise, Electrically-induced exercise training
NCT03139344 nacompletednot on this map

Long Duration Activity and Metabolic Control After Spinal Cord Injury

TypeinterventionalSponsorRichard K ShieldsRan2015 to 2022Enrolled89ConditionsSpinal Cord InjuriesArmsLow-frequency Exercise, High-frequency Exercise
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 33 citations in OpenAlex.

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  18. Mitochondrial health and muscle plasticity after spinal cord injury.European journal of applied physiology · 2019
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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

3 authors at 2 institutions in 1 country.

Michael PetrieDepartment of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa;
Manish SunejaDepartment of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa; and.
Richard K ShieldsDepartment of Physical Therapy and Rehabilitation Science, Carver College of Medicine, University of Iowa, Iowa City, Iowa; Department of Veterans Affairs, Veterans Affairs Medical Center, Iowa City, Iowa richard-shields@uiowa.edu.
University of Iowa · USVeterans Health Administration · US

Funding

Mechanical stress and skeletal plasticity after spinal cord injury in humansR01HD062507 · NICHD · UNIVERSITY OF IOWA · PI SHIELDS, RICHARD K. · 2010 to 2014
$1.5M
Novel Intervention to Influence Muscle Plasticity in Veterans with SCII01RX000149 · VA · IOWA CITY VA MEDICAL CENTER · PI SHIELDS, RICHARD K. · 2012 to 2014
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NICHD NIH HHS R01 HD062507NICHD NIH HHS R01-HD-062507RRD VA I01 RX000149
6 · The paper itself

Abstract

The altered metabolic state after a spinal cord injury compromises systemic glucose regulation. Skeletal muscle atrophies and transforms into fast, glycolytic, and insulin-resistant tissue. Osteoporosis is common after spinal cord injury and limits the ability to exercise paralyzed muscle. We used a novel approach to study the acute effect of two frequencies of stimulation (20 and 5 Hz) on muscle fatigue and gene regulation in people with chronic paralysis. Twelve subjects with chronic (>1 yr) and motor complete spinal cord injury (ASIA A) participated in the study. We assessed the twitch force before and after a single session of electrical stimulation (5 or 20 Hz). We controlled the total number of pulses delivered for each protocol (10,000 pulses). Three hours after the completion of the electrical stimulation (5 or 20 Hz), we sampled the vastus lateralis muscle and examined genes involved with metabolic transcription, glycolysis, oxidative phosphorylation, and mitochondria remodeling. We discovered that the 5-Hz stimulation session induced a similar amount of fatigue and a five- to sixfold increase (P < 0.05) in key metabolic transcription factors, including PGC-1α, NR4A3, and ABRA as the 20-Hz session. Neither session showed a robust regulation of genes for glycolysis, oxidative phosphorylation, or mitochondria remodeling. We conclude that a low-force and low-frequency stimulation session is effective at inducing fatigue and regulating key metabolic transcription factors in human paralyzed muscle. This strategy may be an acceptable intervention to improve systemic metabolism in people with chronic paralysis.

Indexed as

Electric StimulationElectric Stimulation TherapyGene ExpressionGlycolysisHumansMitochondriaMuscle FatigueMuscle, SkeletalOxidative PhosphorylationParalysisSpinal Cord Injuriesdiabeteselectrical stimulationhealth qualitymetabolic syndromespinal cord injury

Identifiers

PMID25635001
PMCPMC4360022
OpenAlexW2162718786

What OpenQuestion holds

Textmetadata
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.