Evidence map›Paper›PMID 31032493›Full record

ArticleNeurology (E-Cronicon)2018

Longer Duration of Downslope Treadmill Walking Induces Depression of H-Reflexes Measured during Standing and Walking.

Maruf M Hoque, Melissa A Ardizzone, Manning Sabatier, Michael R Borich, Trisha M Kesar

Abstract read
In one paragraph

Article in Neurology (E-Cronicon), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Trial
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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

5 authors.

Maruf M HoqueDepartment of Rehabilitation Medicine, Division of Physical Therapy, Emory University, Atlanta, Georgia, USA.
Melissa A ArdizzoneDepartment of Rehabilitation Medicine, Division of Physical Therapy, Emory University, Atlanta, Georgia, USA.
Manning SabatierDepartment of Rehabilitation Medicine, Division of Physical Therapy, Emory University, Atlanta, Georgia, USA.
Michael R BorichDepartment of Rehabilitation Medicine, Division of Physical Therapy, Emory University, Atlanta, Georgia, USA.
Trisha M KesarDepartment of Rehabilitation Medicine, Division of Physical Therapy, Emory University, Atlanta, Georgia, USA.

Funding

MULTICENTER CAREER DEVELOPMENT PROGRAM FOR PHYSICAL AND OCCUPATIONAL THERAPYK12HD055931 · NICHD · WASHINGTON UNIVERSITY · PI HAYES, MARCIE HARRIS · 2007 to 2021
$12.7M
ENGINEERING FOR NEUROLOGIC REHABILITATIONR24HD050821 · NICHD · REHABILITATION INSTITUTE OF CHICAGO D/B/A SHIRLEY RYAN ABILITYLAB · PI RYMER, WILLIAM ZEV · 2005 to 2014
$7.9M
Cortical and spinal correlates of stroke gait rehabilitationK01HD079584 · NICHD · EMORY UNIVERSITY · PI KESAR, TRISHA · 2014 to 2018
$632k
Slope walking and spinal plasticity in people with multiple sclerosisR03HD083727 · NICHD · EMORY UNIVERSITY · PI BORICH, MICHAEL ROBERT, KESAR, TRISHA · 2015 to 2016
$155k
NICHD NIH HHS K01 HD079584NICHD NIH HHS K12 HD055931NICHD NIH HHS R03 HD083727NICHD NIH HHS R24 HD050821
6 · The paper itself

Abstract

objectivesThe Hoffman-reflex (H-reflex) is an electrophysiological technique used to evaluate the excitability of the monosynaptic spinal reflex arc. In individuals with upper motor neuron lesions who show elevated spinal excitability, a depression of spinal excitability may indicate adaptive spinal plasticity. Downslope walking (DSW), an exercise intervention comprising repetitive eccentric muscle activity, has been shown to induce depression of soleus H-reflex amplitudes while seated, however, the dose-response time-course of H-reflex modulation during DSW has not been characterized. The objectives of this study were twofold: (1) to evaluate DSW-induced soleus H-reflex depression in the standing posture and during walking, and (2) to investigate the effect of walking duration (20 minutes and 40 minutes) of DSW (-15% decline) on soleus H-reflexes, (with level walking (LW) as a control intervention).

methodsSoleus H-reflexes were collected Pre, Post-20 minutes, and Post-40 minutes of walking in the standing position; and H-reflexes were also measured at 4 different time points during the terminal stance phase of walking.

resultsOur results showed that soleus H-reflexes evaluated in standing showed a greater % depression after DSW compared to LW, with a statistical trend for greater depression with longer durations (40-minutes). H-reflexes measured during walking showed greater depression after 40 minutes of walking compared to 20- or 30-minutes for both DSW and LW.

conclusionsLonger duration treadmill walking (40-minutes) may induce a greater acute depressive effect on soleus H-reflex excitability compared to shorter durations (20-minutes) of treadmill walking. Future work will investigate the potential for DSW as a gait training intervention in people with upper motor neuron lesions such as multiple sclerosis and stroke.

Indexed as

Hoffman’s ReflexNeuroplasticitySpinal Cord PlasticitySpinal ReflexTreadmill Training

Identifiers

PMID31032493
PMCPMC6483108

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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.