Evidence map›Paper›PMID 26686531›Full record

ArticleExperimental brain research2016

Delayed grip relaxation and altered modulation of intracortical inhibition with aging.

Binal Motawar, James W Stinear, Abigail W Lauer, Viswanathan Ramakrishnan, Na Jin Seo

Open access · greenAbstract read
In one paragraph

Article in Experimental brain research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

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  9. Strategies to Reduce Fall Severity after a Perturbation during Ladder Climbing.IISE transactions on occupational ergonomics and human factors
    Article
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 2 countries.

Binal MotawarDepartment of Occupational Science and Technology, University of Wisconsin-Milwaukee, Milwaukee, WI, 53201-0413, USA.
James W StinearDepartment of Sport and Exercise Science, University of Auckland, Auckland, St Johns, 1072, New Zealand.
Abigail W LauerDepartment of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA.
Viswanathan RamakrishnanDepartment of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA.
Na Jin SeoDivision of Occupational Therapy, Department of Health Professions, Department of Health Sciences and Research, Medical University of South Carolina, 151B Rutledge Ave., Charleston, SC, USA. seon@musc.edu.
Medical University of South Carolina · USUniversity of Auckland · NZUniversity of Wisconsin–Milwaukee · US

Funding

Treating Depression and Enhancing Locomotor Recovery Post-strokeP20GM109040 · NIGMS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KAUTZ, STEVEN A. · 2014 to 2024
$23.5M
Clincal and Translational Science AwardUL1TR000055 · NCATS · MEDICAL COLLEGE OF WISCONSIN · PI SHAKER, REZA NONE · 2012 to 2015
$11.3M
CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR031973 · NCRR · MEDICAL COLLEGE OF WISCONSIN · PI SHAKER, REZA NONE · 2010 to 2011
$7.9M
NCATS NIH HHS 8UL1TR000055NCATS NIH HHS UL1 TR000055NCRR NIH HHS 1UL1RR031973NCRR NIH HHS UL1 RR031973NIGMS NIH HHS P20 GM109040
6 · The paper itself

Abstract

Grip relaxation is a voluntary action that requires an increase in short-interval intracortical inhibition (SICI) in healthy young adults, rather than a simple termination of excitatory drive. The way aging affects this voluntary inhibitory action and timing of grip relaxation is currently unknown. The objective of this study was to examine aging-related delays in grip relaxation and SICI modulation for the flexor digitorum superficialis muscle during grip relaxation. The main finding was that young adults increased SICI to relax their grips, whereas older adults did not increase SICI with a prolonged grip relaxation time (p < 0.05 for both SICI modulation and grip relaxation time). A secondary experiment showed that both young and older adults did not change H reflex excitability during grip relaxation. Our data suggest that grip relaxation is mediated by increased cortical inhibitory output in young adults, and aging-related impairment in increasing cortical inhibitory output may hamper timely cessation of muscle activity. Our data also suggest a lesser role of the spinal circuits in grip muscle relaxation. This knowledge may contribute to understanding of aging-related movement deterioration and development of interventions for improving modulation of SICI to improve muscle relaxation and movement coordination.

Indexed as

AdolescentAdultAgedAgingElectromyographyEvoked Potentials, MotorFemaleHand StrengthH-ReflexHumansMaleMotor CortexMuscle RelaxationTime FactorsYoung AdultAgingGrip relaxationHandH reflexSICITMS

Identifiers

PMID26686531
PMCPMC4786465
OpenAlexW2208632488

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.