Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2
Measuring Range of Motion (ROM) is the first step of physical therapy. A new method to measure ROM by Kinect V2 whose camera type is time of flight is proposed. Colored markers are attached to related joints and then their camera centered three-dimensional world coordinates are located by Kinect. Us...
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Pamukkale University
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doaj-fc49d6c670df4801ae882ee8e615a5032021-04-04T13:24:37ZengPamukkale UniversityPamukkale University Journal of Engineering Sciences1300-70092147-58812018-10-01245915920218Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2Mustafa YığılıtaşFahri KöroğluFatih AslanCemil Özİrfan KösesoyMeasuring Range of Motion (ROM) is the first step of physical therapy. A new method to measure ROM by Kinect V2 whose camera type is time of flight is proposed. Colored markers are attached to related joints and then their camera centered three-dimensional world coordinates are located by Kinect. Using these coordinates, joint angle, and ROM can be accurately calculated. To analyze reliability and validity of the method, ROM measurements of right and left elbow from ten participants are taken by standard goniometer and Kinect separately. For inter-observer reliability, measurements were taken in two sessions by three physiotherapists. The reliability tests Intra-class Correlation Coefficient (ICC), Standard Error of Measure (SEM), and Minimal Detectable Change (MDC) belonging to the measurements have been obtained. To compute absolute accuracy of the method, a goniometer marked with colors has been recorded at four different angles (45, 90, 135, and 180° ) by Kinect in six sessions having 50-frame periods each. Mean, Standard Deviation (SD), Root Mean Square Error (RMSE), and Limits of Agreement (LOA) values are given for each angle and session. The measurements taken for absolute accuracy clearly shows that Kinect has 1- to 3-degree error rate and below 1-degree standard deviation. Analyzing the collected data, the ICC values of Kinect measurements that are 0.94 for right arm and 0.93 for left arm in contrast with the ICC values of goniometric measurements taken by observers are 0.78 for the right arm and 0.81 for the left arm. This study indicates the proposed method has a high level of accuracy and reliability, and it can be efficiently used to measure ROM accurately.https://dergipark.org.tr/tr/pub/pajes/issue/39683/469633kinectromjoint anglergb-d sensorskinecthareket aralığıeklem açısırgb-d sensörler |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mustafa Yığılıtaş Fahri Köroğlu Fatih Aslan Cemil Öz İrfan Kösesoy |
spellingShingle |
Mustafa Yığılıtaş Fahri Köroğlu Fatih Aslan Cemil Öz İrfan Kösesoy Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 Pamukkale University Journal of Engineering Sciences kinect rom joint angle rgb-d sensors kinect hareket aralığı eklem açısı rgb-d sensörler |
author_facet |
Mustafa Yığılıtaş Fahri Köroğlu Fatih Aslan Cemil Öz İrfan Kösesoy |
author_sort |
Mustafa Yığılıtaş |
title |
Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 |
title_short |
Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 |
title_full |
Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 |
title_fullStr |
Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 |
title_full_unstemmed |
Reliability and validity of an innovative method of ROM measurement using Microsoft Kinect V2 |
title_sort |
reliability and validity of an innovative method of rom measurement using microsoft kinect v2 |
publisher |
Pamukkale University |
series |
Pamukkale University Journal of Engineering Sciences |
issn |
1300-7009 2147-5881 |
publishDate |
2018-10-01 |
description |
Measuring
Range of Motion (ROM) is the first step of physical therapy. A new method to
measure ROM by Kinect V2 whose camera type is time of flight is proposed.
Colored markers are attached to related joints and then their camera centered
three-dimensional world coordinates are located by Kinect. Using these coordinates,
joint angle, and ROM can be accurately calculated. To analyze reliability and
validity of the method, ROM measurements of right and left elbow from ten
participants are taken by standard goniometer and Kinect separately. For
inter-observer reliability, measurements were taken in two sessions by three
physiotherapists. The reliability tests Intra-class Correlation Coefficient
(ICC), Standard Error of Measure (SEM), and Minimal Detectable Change (MDC)
belonging to the measurements have been obtained. To compute absolute accuracy
of the method, a goniometer marked with colors has been recorded at four
different angles (45, 90, 135, and 180° ) by Kinect in six sessions having
50-frame periods each. Mean, Standard Deviation (SD), Root Mean Square Error
(RMSE), and Limits of Agreement (LOA) values are given for each angle and
session. The measurements taken for absolute accuracy clearly shows that Kinect
has 1- to 3-degree error rate and below 1-degree standard deviation. Analyzing
the collected data, the ICC values of Kinect measurements that are 0.94 for
right arm and 0.93 for left arm in contrast with the ICC values of goniometric
measurements taken by observers are 0.78 for the right arm and 0.81 for the
left arm. This study indicates the proposed method has a high level of accuracy
and reliability, and it can be efficiently used to measure ROM accurately. |
topic |
kinect rom joint angle rgb-d sensors kinect hareket aralığı eklem açısı rgb-d sensörler |
url |
https://dergipark.org.tr/tr/pub/pajes/issue/39683/469633 |
work_keys_str_mv |
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1721542013155803136 |