Evidence map›Paper›PMID 31092897›Full record

Trial reportSpinal cord2019

A preliminary investigation of mechanisms by which short-term resistance training increases strength of partially paralysed muscles in people with spinal cord injury.

Elizabeth A Bye, Lisa A Harvey, Joanne V Glinsky, Bart Bolsterlee, Robert D Herbert

Open access · bronzeAbstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Spinal cord, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 47% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Effects of Postural Conditions During Magnetic Resonance Imaging on Thigh Muscle Size.Scandinavian journal of medicine & science in sports · 2024
    Article
  2. Magnetic Resonance Imaging Biomarkers of Muscle.Tomography (Ann Arbor, Mich.) · 2024
    Review
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

5 authors at 3 institutions in 1 country.

Elizabeth A ByeJohn Walsh Centre for Rehabilitation Research, Sydney Medical School/Northern, University of Sydney, St Leonards, NSW, Australia.
Lisa A HarveyJohn Walsh Centre for Rehabilitation Research, Sydney Medical School/Northern, University of Sydney, St Leonards, NSW, Australia.
Joanne V GlinskyJohn Walsh Centre for Rehabilitation Research, Sydney Medical School/Northern, University of Sydney, St Leonards, NSW, Australia.
Bart BolsterleeNeuroscience Research Australia (NeuRA), Randwick, NSW, Australia.
Robert D HerbertNeuroscience Research Australia (NeuRA), Randwick, NSW, Australia. r.herbert@neura.edu.au.
Neuroscience Research Australia · AUNorthern Sydney Local Health District · AUUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designPretest-posttest design.

objectivesTo investigate mechanisms by which short-term resistance training (6 weeks) increases strength of partially paralysed muscles in people with spinal cord injury (SCI).

settingCommunity-based setting, Sydney, Australia.

participantsTen community-dwelling people with partial paralysis of elbow flexor, elbow extensor, knee flexor or knee extensor muscles following SCI (range 5 months to 14 years since injury).

methodsMuscle architecture and strength were assessed before and after participants underwent a six week strength-training program targeting one partially paralysed muscle group. The outcome of primary interest was physiological cross sectional area (PCSA) of the trained muscle group measured using magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI). Other outcomes were changes in mean muscle fascicle length, muscle volume, pennation angle, isometric strength and muscle strength graded on a 13-point scale.

resultsThe mean increase in maximal isometric muscle strength was 14% (95% CI, -3 to 30%) and 1.5 points (95% CI, 0.5 to 2.5) on the 13-point manual muscle test. There was no evidence of a change in muscle architecture.

conclusionThis study is the first to examine the mechanisms by which voluntary strength training increases strength of partially paralysed muscles in people with SCI. The data suggest that strength gains produced by six weeks of strength training are not caused by changes in muscle architecture. This suggests short-term strength gains are due to increased neural drive or an increase in specific muscle tension.

Indexed as

AdultElbow JointFemaleHumansKnee JointMaleMiddle AgedMuscle StrengthParalysisResistance TrainingRetrospective StudiesSpinal Cord InjuriesTime Factors

Identifiers

PMID31092897
OpenAlexW2945266646

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.