Evaluation of functional tests performance using a camera-based and machine learning approach.

The objective of this study is to evaluate the performance of functional tests using a camera-based system and machine learning techniques. Specifically, we investigate whether OpenPose and any standard camera can be used to assess the quality of the Single Leg Squat Test and Step Down Test function...

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Main Authors: Jindřich Adolf, Yoram Segal, Matyáš Turna, Tereza Nováková, Jaromír Doležal, Patrik Kutílek, Jan Hejda, Ofer Hadar, Lenka Lhotská
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288279&type=printable
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author Jindřich Adolf
Yoram Segal
Matyáš Turna
Tereza Nováková
Jaromír Doležal
Patrik Kutílek
Jan Hejda
Ofer Hadar
Lenka Lhotská
author_facet Jindřich Adolf
Yoram Segal
Matyáš Turna
Tereza Nováková
Jaromír Doležal
Patrik Kutílek
Jan Hejda
Ofer Hadar
Lenka Lhotská
author_sort Jindřich Adolf
collection DOAJ
description The objective of this study is to evaluate the performance of functional tests using a camera-based system and machine learning techniques. Specifically, we investigate whether OpenPose and any standard camera can be used to assess the quality of the Single Leg Squat Test and Step Down Test functional tests. We recorded these exercises performed by forty-six healthy subjects, extract motion data, and classify them to expert assessments by three independent physiotherapists using 15 binary parameters. We calculated ranges of movement in Keypoint-pair orientations, joint angles, and relative distances of the monitored segments and used machine learning algorithms to predict the physiotherapists' assessments. Our results show that the AdaBoost classifier achieved a specificity of 0.8, a sensitivity of 0.68, and an accuracy of 0.7. Our findings suggest that a camera-based system combined with machine learning algorithms can be a simple and inexpensive tool to assess the performance quality of functional tests.
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spelling doaj.art-d31b87b4e28d4be7a8484f14686acfbe2023-11-09T05:32:12ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-011811e028827910.1371/journal.pone.0288279Evaluation of functional tests performance using a camera-based and machine learning approach.Jindřich AdolfYoram SegalMatyáš TurnaTereza NovákováJaromír DoležalPatrik KutílekJan HejdaOfer HadarLenka LhotskáThe objective of this study is to evaluate the performance of functional tests using a camera-based system and machine learning techniques. Specifically, we investigate whether OpenPose and any standard camera can be used to assess the quality of the Single Leg Squat Test and Step Down Test functional tests. We recorded these exercises performed by forty-six healthy subjects, extract motion data, and classify them to expert assessments by three independent physiotherapists using 15 binary parameters. We calculated ranges of movement in Keypoint-pair orientations, joint angles, and relative distances of the monitored segments and used machine learning algorithms to predict the physiotherapists' assessments. Our results show that the AdaBoost classifier achieved a specificity of 0.8, a sensitivity of 0.68, and an accuracy of 0.7. Our findings suggest that a camera-based system combined with machine learning algorithms can be a simple and inexpensive tool to assess the performance quality of functional tests.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288279&type=printable
spellingShingle Jindřich Adolf
Yoram Segal
Matyáš Turna
Tereza Nováková
Jaromír Doležal
Patrik Kutílek
Jan Hejda
Ofer Hadar
Lenka Lhotská
Evaluation of functional tests performance using a camera-based and machine learning approach.
PLoS ONE
title Evaluation of functional tests performance using a camera-based and machine learning approach.
title_full Evaluation of functional tests performance using a camera-based and machine learning approach.
title_fullStr Evaluation of functional tests performance using a camera-based and machine learning approach.
title_full_unstemmed Evaluation of functional tests performance using a camera-based and machine learning approach.
title_short Evaluation of functional tests performance using a camera-based and machine learning approach.
title_sort evaluation of functional tests performance using a camera based and machine learning approach
url https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0288279&type=printable
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