The validity of video clips in the diagnosis of gait disorder

Salih A. Salih, Richard Wootton, Elaine Beller, Len Gray

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

We investigated the accuracy and validity of clinical gait assessment, performed by experienced geriatricians viewing video clips of 10 s duration. Nineteen patients with normal or characteristic abnormal gait patterns were studied. The treating physician's diagnosis served as the gold standard. Another live assessment was then performed by a geriatrician blinded to the medical record to establish inter-rater reliability of live assessments. Subsequently, each gait video clip was examined by two independent geriatricians without any background clinical documentation. Diagnostic accuracy was tested at two levels - whether the gait was abnormal, and the specific gait diagnosis. The agreement of the video clip examination with the gold standard to identify abnormal gait from normal gait ranged from substantial to excellent among assessors (kappa = 0.68-0.85), although low agreement with the gold standard was achieved in the detection of specific gait diagnosis (average agreement between both viewing geriatricians 50%). The technique appears to be a valid screening procedure for detecting gait abnormalities (average sensitivity 100%, specificity 70%).

Original languageEnglish
Pages (from-to)333-336
Number of pages4
JournalJournal of Telemedicine and Telecare
Volume13
Issue number7
DOIs
Publication statusPublished - 2007
Externally publishedYes

Cite this

Salih, Salih A. ; Wootton, Richard ; Beller, Elaine ; Gray, Len. / The validity of video clips in the diagnosis of gait disorder. In: Journal of Telemedicine and Telecare. 2007 ; Vol. 13, No. 7. pp. 333-336.
@article{268cf22808e448b6a98f4ee35f26c9b1,
title = "The validity of video clips in the diagnosis of gait disorder",
abstract = "We investigated the accuracy and validity of clinical gait assessment, performed by experienced geriatricians viewing video clips of 10 s duration. Nineteen patients with normal or characteristic abnormal gait patterns were studied. The treating physician's diagnosis served as the gold standard. Another live assessment was then performed by a geriatrician blinded to the medical record to establish inter-rater reliability of live assessments. Subsequently, each gait video clip was examined by two independent geriatricians without any background clinical documentation. Diagnostic accuracy was tested at two levels - whether the gait was abnormal, and the specific gait diagnosis. The agreement of the video clip examination with the gold standard to identify abnormal gait from normal gait ranged from substantial to excellent among assessors (kappa = 0.68-0.85), although low agreement with the gold standard was achieved in the detection of specific gait diagnosis (average agreement between both viewing geriatricians 50{\%}). The technique appears to be a valid screening procedure for detecting gait abnormalities (average sensitivity 100{\%}, specificity 70{\%}).",
author = "Salih, {Salih A.} and Richard Wootton and Elaine Beller and Len Gray",
year = "2007",
doi = "10.1258/135763307782215406",
language = "English",
volume = "13",
pages = "333--336",
journal = "Journal of Telemedicine and Telecare",
issn = "1357-633X",
publisher = "ROYAL SOC MEDICINE PRESS LTD",
number = "7",

}

The validity of video clips in the diagnosis of gait disorder. / Salih, Salih A.; Wootton, Richard; Beller, Elaine; Gray, Len.

In: Journal of Telemedicine and Telecare, Vol. 13, No. 7, 2007, p. 333-336.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - The validity of video clips in the diagnosis of gait disorder

AU - Salih, Salih A.

AU - Wootton, Richard

AU - Beller, Elaine

AU - Gray, Len

PY - 2007

Y1 - 2007

N2 - We investigated the accuracy and validity of clinical gait assessment, performed by experienced geriatricians viewing video clips of 10 s duration. Nineteen patients with normal or characteristic abnormal gait patterns were studied. The treating physician's diagnosis served as the gold standard. Another live assessment was then performed by a geriatrician blinded to the medical record to establish inter-rater reliability of live assessments. Subsequently, each gait video clip was examined by two independent geriatricians without any background clinical documentation. Diagnostic accuracy was tested at two levels - whether the gait was abnormal, and the specific gait diagnosis. The agreement of the video clip examination with the gold standard to identify abnormal gait from normal gait ranged from substantial to excellent among assessors (kappa = 0.68-0.85), although low agreement with the gold standard was achieved in the detection of specific gait diagnosis (average agreement between both viewing geriatricians 50%). The technique appears to be a valid screening procedure for detecting gait abnormalities (average sensitivity 100%, specificity 70%).

AB - We investigated the accuracy and validity of clinical gait assessment, performed by experienced geriatricians viewing video clips of 10 s duration. Nineteen patients with normal or characteristic abnormal gait patterns were studied. The treating physician's diagnosis served as the gold standard. Another live assessment was then performed by a geriatrician blinded to the medical record to establish inter-rater reliability of live assessments. Subsequently, each gait video clip was examined by two independent geriatricians without any background clinical documentation. Diagnostic accuracy was tested at two levels - whether the gait was abnormal, and the specific gait diagnosis. The agreement of the video clip examination with the gold standard to identify abnormal gait from normal gait ranged from substantial to excellent among assessors (kappa = 0.68-0.85), although low agreement with the gold standard was achieved in the detection of specific gait diagnosis (average agreement between both viewing geriatricians 50%). The technique appears to be a valid screening procedure for detecting gait abnormalities (average sensitivity 100%, specificity 70%).

U2 - 10.1258/135763307782215406

DO - 10.1258/135763307782215406

M3 - Article

VL - 13

SP - 333

EP - 336

JO - Journal of Telemedicine and Telecare

JF - Journal of Telemedicine and Telecare

SN - 1357-633X

IS - 7

ER -