Evidence map›Paper›PMID 31760316›Full record

ArticleGait & posture2020

What happens before the first step? A New Approach to Quantifying Gait Initiation Using a Wearable Sensor.

Eran Gazit, Aron S Buchman, Robert Dawe, Thomas A Curran, Anat Mirelman, Nir Giladi, Jeffrey M Hausdorff

Open access · greenAbstract read
In one paragraph

Article in Gait & posture, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
6.5field-weighted citation impact, top 4% 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

14 citing papers in PubMed, 22 citations in OpenAlex.

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  9. Aquatic Therapy after Incomplete Spinal Cord Injury: Gait Initiation Analysis Using Inertial Sensors.International journal of environmental research and public health · 2022
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  13. [Research progress on wearable physiological parameter monitoring and its clinical applications].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2021
    Review
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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

7 authors at 3 institutions in 2 countries.

Eran GazitCenter for the study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Israel. Electronic address: erang@tlvmc.gov.il.
Aron S BuchmanRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, United States; Department of Neurological Sciences, Rush University Medical Center, Chicago, United States.
Robert DaweRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, United States; Department of Radiology, Rush University Medical Center, Chicago, United States.
Thomas A CurranRush Alzheimer's Disease Center, Rush University Medical Center, Chicago, United States.
Anat MirelmanCenter for the study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Israel; Sagol School of Neuroscience, Tel Aviv University, Israel; Department of Neurology and Neurosurgery, Sackler School of Medicine, Tel Aviv University, Israel.
Nir GiladiCenter for the study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Israel; Sagol School of Neuroscience, Tel Aviv University, Israel; Department of Neurology and Neurosurgery, Sackler School of Medicine, Tel Aviv University, Israel.
Jeffrey M HausdorffCenter for the study of Movement, Cognition and Mobility, Neurological Institute, Tel Aviv Sourasky Medical Center, Israel; Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, United States; Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, United States; Sagol School of Neuroscience, Tel Aviv University, Israel; Department of Physical Therapy, Sackler Faculty of Medicine, Israel.
Rush University Medical Center · USTel Aviv Sourasky Medical Center · ILTel Aviv University · IL

Funding

EPIDEMIOLOGY OF NEURAL RESERVE AND NEUROBIOLOGY IN AGINGR01AG017917 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 2001 to 2023
$43.3M
Racial Differences in Late-Life Cognitive Decline and Risk of Alzheimer's DiseaseRF1AG022018 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BARNES, LISA L · 2016 to 2019
$6.6M
Impaired Gait in Older Adults: Pathologies of Alzheimer's disease and Related DisordersR01AG056352 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BUCHMAN, ARON S · 2017 to 2021
$3.5M
Spinal cord and brainstem pathology contributions to late-life gait impairmentR01AG047976 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BUCHMAN, ARON S · 2015 to 2019
$2.6M
The Clinical Profile of Parkinson's Disease (PD) PathologyR01NS078009 · NINDS · RUSH UNIVERSITY MEDICAL CENTER · PI BUCHMAN, ARON S · 2012 to 2016
$2.4M
Quantifying Lower Extremity Joint Motion in Community-Dwelling Older Adults to Elucidate its Contributions to Mobility Limitations, Incident Mobility Disability, and FallsK25AG061254 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI DAWE, ROBERT J · 2019 to 2022
$579k
NIA NIH HHS K25 AG061254NIA NIH HHS R01 AG017917NIA NIH HHS R01 AG047976NIA NIH HHS R01 AG056352NIA NIH HHS RF1 AG022018NINDS NIH HHS R01 NS078009
6 · The paper itself

Abstract

backgroundWalking is a volitional behavior that requires planning and initiation before a step is observed. Following a signal to begin walking, studies of gait initiation in specialized labs have identified three phases that occur during the transition from a standing position via anticipatory postural adjustment (APA) to the first step. Routine instrumented gait testing outside of the laboratory setting focuses on gait execution and does not include gait initiation measures. RESEARCH QUESTION: Can a single IMU sensor be used for performing gait initiation evaluations outside the lab?

methodsWe recorded walking in young (N = 41) and older (N = 26) adults using an instrumented gait mat while they were wearing a 3D accelerometer on their lower back. Subjects were instructed to begin walking following an auditory signal. An algorithm was developed to extract the following measures from the acceleration signal: gait initiation time, measured from the start of the auditory cue to begin walking and ends at the heel-strike of the swing leg, time-to-APA (reaction time), APA duration and swing time (execution of the first step).

resultsIntraclass correlation coefficient analysis showed good to excellent agreement between gait initiation metrics obtained with the gait mat and the wearable sensor (mean 0.88, range [0.75-0.96]). Except for swing time, all measures were longer in the older subjects, compared to the young adults (p < 0.01). SIGNIFICANCE: Extracting gait initiation measures from routine instrumented gait testing may facilitate studies that can better determine the extent to which impaired gait planning and execution contribute to mobility impairments.

Indexed as

CognitionGaitWalkingAdultAgedAlgorithmsFemaleHumansMaleMiddle AgedWearable Electronic DevicesYoung Adultaccelerometeraginganticipatory postural adjustmentgaitinertial measurement units

Identifiers

PMID31760316
PMCPMC7015786
OpenAlexW2984749190

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.