Evidence map›Paper›PMID 28110044›Full record

Trial reportJournal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology2017

Dopaminergic modulation of multi-muscle synergies in postural tasks performed by patients with Parkinson's disease.

Ali Falaki, Xuemei Huang, Mechelle M Lewis, Mark L Latash

Open access · greenAbstract readClinical Trial
In one paragraph

Trial report in Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
10.9field-weighted citation impact, top 2% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
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  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. One more time about motor (and non-motor) synergies.Experimental brain research · 2021
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Muscle Synergies in Parkinson's Disease.Sensors (Basel, Switzerland) · 2020
    Review
  19. Article
  20. 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

4 authors at 2 institutions in 1 country.

Ali FalakiDepartment of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA.
Xuemei HuangDepartment of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Radiology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Neurosurgery, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA.
Mechelle M LewisDepartment of Neurology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA; Department of Pharmacology, Pennsylvania State University-Milton S. Hershey Medical Center, Hershey, PA 17033, USA.
Mark L LatashDepartment of Kinesiology, The Pennsylvania State University, University Park, PA 16802, USA. Electronic address: mll11@psu.edu.
Pennsylvania State University · USPenn State Milton S. Hershey Medical Center · US

Funding

Penn State Clinical and Translational Science InstituteUL1TR002014 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI KRASCHNEWSKI, JENNIFER L. · 2016 to 2025
$33.7M
Penn State Clinical and Translational Science InstituteUL1TR000127 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI SINOWAY, LAWRENCE I · 2012 to 2015
$17.1M
Regional Brain Manganese Accumulation and Functional Consequences in WeldersR01ES019672 · NIEHS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HUANG, XUEMEI · 2011 to 2021
$5.9M
THE ORGANIZATION OF A SIMPLE SYNERGYR01NS035032 · NINDS · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI LATASH, MARK L · 1997 to 2015
$4.3M
Multimodal MRI Markers of Nigrostriatal Pathology in Parkinson's DiseaseU01NS082151 · NINDS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HUANG, XUEMEI · 2012 to 2016
$4.2M
NRSA Training CoreTL1TR002016 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI THOMAS, GAIL D. · 2016 to 2025
$3.4M
PREHENSION SYNERGIESR01AR048563 · NIAMS · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI LATASH, MARK L · 2003 to 2014
$3.2M
Structural MRI marker(s) of Parkinson's Disease's ProgressionR01NS060722 · NINDS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI HUANG, XUEMEI · 2009 to 2013
$2.9M
Penn State Clinical and Translational Science InstituteTL1TR000125 · NCATS · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · PI SINOWAY, LAWRENCE I · 2012 to 2015
$550k
NCATS NIH HHS TL1 TR000125NCATS NIH HHS TL1 TR002016NCATS NIH HHS UL1 TR000127NCATS NIH HHS UL1 TR002014NIAMS NIH HHS R01 AR048563NIEHS NIH HHS R01 ES019672NINDS NIH HHS R01 NS035032NINDS NIH HHS R01 NS060722NINDS NIH HHS U01 NS082151
6 · The paper itself

Abstract

backgroundPostural instability is one of most disabling motor symptoms in Parkinson's disease. Indices of multi-muscle synergies are new measurements of postural stability.

objectivesWe explored the effects of dopamine-replacement drugs on multi-muscle synergies stabilizing center of pressure coordinate and their adjustments prior to a self-triggered perturbation in patients with Parkinson's disease. We hypothesized that both synergy indices and synergy adjustments would be improved on dopaminergic drugs.

methodsPatients at Hoehn-Yahr stages II and III performed whole-body tasks both off- and on-drugs while standing. Muscle modes were identified as factors in the muscle activation space. Synergy indices stabilizing center of pressure in the anterior-posterior direction were quantified in the muscle mode space during a load-release task.

resultsDopamine-replacement drugs led to more consistent organization of muscles in stable groups (muscle modes). On-drugs patients showed larger indices of synergies and anticipatory synergy adjustments. In contrast, no medication effects were seen on anticipatory postural adjustments or other performance indices.

conclusionsDopamine-replacement drugs lead to significant changes in characteristics of multi-muscle synergies in Parkinson's disease. Studies of synergies may provide a biomarker sensitive to problems with postural stability and agility and to efficacy of dopamine-replacement therapy.

Indexed as

AdultAgedDopamine AgentsFemaleHumansLevodopaMaleMuscle ContractionMuscle, SkeletalParkinson DiseasePostural BalancePostureDopamine AgentsLevodopaAnticipatory synergy adjustmentsDopaminergic medicationMuscle modeParkinson’s diseasePostureSynergy

Identifiers

PMID28110044
PMCPMC5357450
OpenAlexW2573213911

What OpenQuestion holds

Textmetadata
LicenceTDM
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.