Heuristic real-time detection of temporal gait events for lower limb amputees

This paper presents a complete system and algorithm to estimate temporal gait events during stance and inner-stance phases using a single inertial measurement unit (IMU) in real-time. Validation of the proposed system was carried out by placing the foot-switches (FSW) directly underneath the foot. T...

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Main Authors:	Maqbool, Hafiz Farhan, Husman, Muhammad Afif, Awad, Mohammed Ibrahim, Abouhossein, Alireza, Iqbal, Nadeem, Tahir, Mehak, Dehghani-Sanij, Abbas Ali
Format:	Article
Language:	English English English
Published:	Institute of Electrical and Electronics Engineers Inc. 2019
Subjects:	RD Surgery T Technology (General)
Online Access:	http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/1/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal%20Gait.pdf http://irep.iium.edu.my/72169/7/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_wos.pdf http://irep.iium.edu.my/72169/8/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_scopus.pdf

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spelling	iium-721692019-07-12T01:40:36Z http://irep.iium.edu.my/72169/ Heuristic real-time detection of temporal gait events for lower limb amputees Maqbool, Hafiz Farhan Husman, Muhammad Afif Awad, Mohammed Ibrahim Abouhossein, Alireza Iqbal, Nadeem Tahir, Mehak Dehghani-Sanij, Abbas Ali RD Surgery T Technology (General) This paper presents a complete system and algorithm to estimate temporal gait events during stance and inner-stance phases using a single inertial measurement unit (IMU) in real-time. Validation of the proposed system was carried out by placing the foot-switches (FSW) directly underneath the foot. The performance of the system was assessed with eleven control subjects (CS), one unilateral transfemoral amputee (TFA), and one unilateral transtibial amputee (TTA), while performing level ground walk and ramp activities. The experimental results showed reasonable agreement in timing differences of all the gait events in both groups when compared against the reference system. However, high data latency was observed for TFA in the case of Foot-Flat Start (FFS) and Heel-Off (HO). The slight variation in the positioning of IMU on the shank and the foot-switches underneath the foot and the difference in the kinematics of CS and lower limb amputees are probable reasons for large variations in the time difference. Overall, the detection accuracy was found to be 100% for Initial Contact, FFS, and Toe-Off, and 98.3% for HO. In addition, a high correlation was observed between estimated stance phase duration (SPD) from IMU and the SPD from FSW data. The proposed system showed high accuracy in the detection of temporal gait events which could potentially be employed in the gait analysis applications and the finite-state control of lower limb prostheses/orthoses. Institute of Electrical and Electronics Engineers Inc. 2019-04-15 Article PeerReviewed application/pdf en http://irep.iium.edu.my/72169/1/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal%20Gait.pdf application/pdf en http://irep.iium.edu.my/72169/7/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_wos.pdf application/pdf en http://irep.iium.edu.my/72169/8/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_scopus.pdf Maqbool, Hafiz Farhan and Husman, Muhammad Afif and Awad, Mohammed Ibrahim and Abouhossein, Alireza and Iqbal, Nadeem and Tahir, Mehak and Dehghani-Sanij, Abbas Ali (2019) Heuristic real-time detection of temporal gait events for lower limb amputees. IEEE Sensors Journal, 19 (8). pp. 3138-3148. ISSN 1530-437X https://ieeexplore.ieee.org/document/8590827 10.1109/JSEN.2018.2889970
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	RD Surgery T Technology (General)
spellingShingle	RD Surgery T Technology (General) Maqbool, Hafiz Farhan Husman, Muhammad Afif Awad, Mohammed Ibrahim Abouhossein, Alireza Iqbal, Nadeem Tahir, Mehak Dehghani-Sanij, Abbas Ali Heuristic real-time detection of temporal gait events for lower limb amputees
description	This paper presents a complete system and algorithm to estimate temporal gait events during stance and inner-stance phases using a single inertial measurement unit (IMU) in real-time. Validation of the proposed system was carried out by placing the foot-switches (FSW) directly underneath the foot. The performance of the system was assessed with eleven control subjects (CS), one unilateral transfemoral amputee (TFA), and one unilateral transtibial amputee (TTA), while performing level ground walk and ramp activities. The experimental results showed reasonable agreement in timing differences of all the gait events in both groups when compared against the reference system. However, high data latency was observed for TFA in the case of Foot-Flat Start (FFS) and Heel-Off (HO). The slight variation in the positioning of IMU on the shank and the foot-switches underneath the foot and the difference in the kinematics of CS and lower limb amputees are probable reasons for large variations in the time difference. Overall, the detection accuracy was found to be 100% for Initial Contact, FFS, and Toe-Off, and 98.3% for HO. In addition, a high correlation was observed between estimated stance phase duration (SPD) from IMU and the SPD from FSW data. The proposed system showed high accuracy in the detection of temporal gait events which could potentially be employed in the gait analysis applications and the finite-state control of lower limb prostheses/orthoses.
format	Article
author	Maqbool, Hafiz Farhan Husman, Muhammad Afif Awad, Mohammed Ibrahim Abouhossein, Alireza Iqbal, Nadeem Tahir, Mehak Dehghani-Sanij, Abbas Ali
author_facet	Maqbool, Hafiz Farhan Husman, Muhammad Afif Awad, Mohammed Ibrahim Abouhossein, Alireza Iqbal, Nadeem Tahir, Mehak Dehghani-Sanij, Abbas Ali
author_sort	Maqbool, Hafiz Farhan
title	Heuristic real-time detection of temporal gait events for lower limb amputees
title_short	Heuristic real-time detection of temporal gait events for lower limb amputees
title_full	Heuristic real-time detection of temporal gait events for lower limb amputees
title_fullStr	Heuristic real-time detection of temporal gait events for lower limb amputees
title_full_unstemmed	Heuristic real-time detection of temporal gait events for lower limb amputees
title_sort	heuristic real-time detection of temporal gait events for lower limb amputees
publisher	Institute of Electrical and Electronics Engineers Inc.
publishDate	2019
url	http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/ http://irep.iium.edu.my/72169/1/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal%20Gait.pdf http://irep.iium.edu.my/72169/7/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_wos.pdf http://irep.iium.edu.my/72169/8/72169_Heuristic%20Real-Time%20Detection%20of%20Temporal_scopus.pdf
first_indexed	2023-09-18T21:42:18Z
last_indexed	2023-09-18T21:42:18Z
_version_	1777413220862001152

Heuristic real-time detection of temporal gait events for lower limb amputees

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