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

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 low...

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Format:	Thesis
Language:	English
Subjects:	Joints > Range of motion Leg Tracking (Engineering) Eye tracking
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/4/Lim%20Chee%20Chin.pdf
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spelling	my-unimap-771862022-11-24T08:36:15Z A visual tracking range of motion assessment system for lower limb joint Shafriza Nisha, Basah, Dr. 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%. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77186 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/1/Page%201-24.pdf 102219c89861ef6fb2151f5d1f911872 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/2/Full%20text.pdf b2accc4c5eefe905133b4e85c2178593 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/4/Lim%20Chee%20Chin.pdf dad5d9ce634aefd7dbbf4f6981df1ebc Universiti Malaysia Perlis (UniMAP) Joints -- Range of motion Leg Tracking (Engineering) Eye tracking School of Mechatronic Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Shafriza Nisha, Basah, Dr.
topic	Joints -- Range of motion Leg Tracking (Engineering) Eye tracking
spellingShingle	Joints -- Range of motion Leg Tracking (Engineering) Eye tracking A visual tracking range of motion assessment system for lower limb joint
description	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%.
format	Thesis
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
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Mechatronic Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77186/4/Lim%20Chee%20Chin.pdf
_version_	1776104248077975552

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

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