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A visual tracking range of motion assessment system for lower limb joint

Doctor of Philosophy in Biomedical Electronic Engineering

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Bibliographic Details
Main Author: Lim, Chee Chin
Other Authors: Shafriza Nisha, Basah, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Joints > Range of motion
Leg
Tracking (Engineering)
Eye tracking
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77186
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spelling my.unimap-771862022-11-24T08:36:15Z A visual tracking range of motion assessment system for lower limb joint Lim, Chee Chin Shafriza Nisha, Basah, Dr. Joints -- Range of motion Leg Tracking (Engineering) Eye tracking Doctor of Philosophy in Biomedical Electronic Engineering Accurate range of motion (ROM) measurement of lower limb joint motion is important for assessing the severity of human lower limb injuries. It is essential for assisting the medical doctor and physiotherapist to determine the suitable treatment and rehabilitation exercises that are required for lower limb injury patient specifically. Current medical measurement systems such as Universal Goniometer (UGM) has a large resolution of 1° which may cause to have observation error while Electrogoniometer (EGM) is affected by the inaccurate sensor’s position and detachment when moving due to its mechanical properties limitation. Thus, a visual tracking ROM assessment system (VTS) for lower limb joint measurement is proposed. The purpose of this investigation was to develop a method to quantify a ROM of the lower limb joint and examine the ROM obtained between the VTS with EGM and UGM, for the measurement of lower limb joint angles. There were three major experiments conducted i.e., Validation Experiment, Clinical Test and Clinical Case Study. Validation experiment was done on the developed visual tracking system before being applied on the real human subject to ensure the system performance and safety to be acceptable. The system had been tested under the several of light intensity level, camera distance, camera elevation angle and markers location to determine the optimum operating condition. In clinical test, there were two tests carried out; they were Healthy Control Test and Injured Subject Test. A total of 20 healthy control subjects’ findings proved that the left and right lower limbs of human were similar (99.80% ~ 97.64% of similarity) for the normal healthy subjects. Comparison between VTS, EGM and UGM found that the accuracy for each two systems compared to each other was significantly different for the VTS vs. EGM and the EGM vs. UGM. The VTS vs. UGM produced the highest accuracy for all the joint motions compared to VTS vs. EGM and the EGM vs. UGM; it was 99.46% for left knee flexion. In addition, total of 70 injured subjects (included ankle joint, knee joint, and hip joint) had undergone injured subject test to compare its severity level between illness and three measurement systems. In the injured subject test, VTS yielded the smallest coefficient of variation (CV) compared to the EGM and UGM for Knee flexion for moderate injuries which was 2.45%. 2016 2022-11-24T08:34:18Z 2022-11-24T08:34:18Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77186 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Mechatronic Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Joints -- Range of motion
Leg
Tracking (Engineering)
Eye tracking
spellingShingle Joints -- Range of motion
Leg
Tracking (Engineering)
Eye tracking
Lim, Chee Chin
A visual tracking range of motion assessment system for lower limb joint
description Doctor of Philosophy in Biomedical Electronic Engineering
author2 Shafriza Nisha, Basah, Dr.
author_facet Shafriza Nisha, Basah, Dr.
Lim, Chee Chin
format Thesis
author Lim, Chee Chin
author_sort Lim, Chee Chin
title A visual tracking range of motion assessment system for lower limb joint
title_short A visual tracking range of motion assessment system for lower limb joint
title_full A visual tracking range of motion assessment system for lower limb joint
title_fullStr A visual tracking range of motion assessment system for lower limb joint
title_full_unstemmed A visual tracking range of motion assessment system for lower limb joint
title_sort visual tracking range of motion assessment system for lower limb joint
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77186
_version_ 1753972993229324288
score 13.222552

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