Evidence map›Paper›PMID 34599267›Full record

ArticleScientific reports2021

Co-contraction of ankle muscle activity during quiet standing in individuals with incomplete spinal cord injury is associated with postural instability.

Kai Lon Fok, Jae W Lee, Janelle Unger, Katherine Chan, Kristin E Musselman, Kei Masani

Erratum issuedAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

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

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Kai Lon FokInstitute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada.ORCID 0000-0002-6229-5735
Jae W LeeInstitute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada.
Janelle UngerKITE-Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada.
Katherine ChanKITE-Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada.
Kristin E MusselmanKITE-Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada.
Kei MasaniInstitute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada. k.masani@utoronto.ca.ORCID 0000-0002-0207-3241

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous findings indicate that co-contractions of plantarflexors and dorsiflexors during quiet standing increase the ankle mechanical joint stiffness, resulting in increased postural sway. Balance impairments in individuals with incomplete spinal cord injury (iSCI) may be due to co-contractions like in other individuals with reduced balance ability. Here we investigated the effect of co-contraction between plantar- and dorsiflexors on postural balance in individuals with iSCI (iSCI-group) and able-bodied individuals (AB-group). Thirteen able-bodied individuals and 13 individuals with iSCI were asked to perform quiet standing with their eyes open (EO) and eyes closed (EC). Kinetics and electromyograms from the tibialis anterior (TA), soleus and medial gastrocnemius were collected bilaterally. The iSCI-group exhibited more co-contractions than the AB-group (EO: 0.208% vs. 75.163%, p = 0.004; EC: 1.767% vs. 92.373%, p = 0.016). Furthermore, postural sway was larger during co-contractions than during no co-contraction in the iSCI-group (EO: 1.405 cm/s

Indexed as

AdultAgedAnkleBiomechanical PhenomenaCase-Control StudiesComputer SimulationElectromyographyFemaleHumansMaleMiddle AgedMuscle ContractionMuscle, SkeletalPostural BalanceSpinal Cord InjuriesStanding Position

Identifiers

PMID34599267
PMCPMC8486862

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.