Evidence map›Paper›PMID 21963319›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2012

Limb segment vibration modulates spinal reflex excitability and muscle mRNA expression after spinal cord injury.

Shuo-Hsiu Chang, Shih-Chiao Tseng, Colleen L McHenry, Andrew E Littmann, Manish Suneja, Richard K Shields

Abstract readControlled Clinical Trial
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
–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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Bone architecture adaptations after spinal cord injury: impact of long-term vibration of a constrained lower limb.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
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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.

Shuo-Hsiu ChangDepartment of Physical Medicine & Rehabilitation, University of Texas Health Science Center at Houston, Houston, TX, USA.
Shih-Chiao Tseng
Colleen L McHenry
Andrew E Littmann
Manish Suneja
Richard K Shields

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
NICHD NIH HHS R01 HD062507NICHD NIH HHS R01HD062507
6 · The paper itself

Abstract

objectiveWe investigated the effect of various doses of vertical oscillation (vibration) on soleus H-reflex amplitude and post-activation depression in individuals with and without SCI. We also explored the acute effect of short-term limb vibration on skeletal muscle mRNA expression of genes associated with spinal plasticity.

methodsSix healthy adults and five chronic complete SCI subjects received vibratory stimulation of their tibia over three different gravitational accelerations (0.3g, 0.6g, and 1.2g) at a fixed frequency (30Hz). Soleus H-reflexes were measured before, during, and after vibration. Two additional chronic complete SCI subjects had soleus muscle biopsies 3h following a single bout of vibration.

resultsH-reflex amplitude was depressed over 83% in both groups during vibration. This vibratory-induced inhibition lasted over 2min in the control group, but not in the SCI group. Post-activation depression was modulated during the long-lasting vibratory inhibition. A single bout of mechanical oscillation altered mRNA expression from selected genes associated with synaptic plasticity.

conclusionsVibration of the lower leg inhibits the H-reflex amplitude, influences post-activation depression, and alters skeletal muscle mRNA expression of genes associated with synaptic plasticity. SIGNIFICANCE: Limb segment vibration may offer a long term method to reduce spinal reflex excitability after SCI.

Indexed as

AdultBiomechanical PhenomenaElectric StimulationElectromyographyFemaleH-ReflexHumansLegMaleMiddle AgedMuscle, SkeletalNeuromuscular JunctionNeuronal PlasticityRNA, MessengerSpinal CordSpinal Cord InjuriesRNA, Messenger

Identifiers

PMID21963319
PMCPMC3270316

What OpenQuestion holds

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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.