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General Information
    • ISSN: 1793-8198 (Print)
    • Abbreviated Title: Int. J. Mater. Mech. Manuf.
    • Frequency: Bimonthly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. Ian McAndrew
    • Co-editor-in-Chief: Prof. K. M. Gupta
    • Executive Editor: Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS),  ProQuest, Crossref, Ulrich's Periodicals Directory,  EBSCO.
    • E-mail ijmmm@ejournal.net

Editor-in-chief
Prof. Ian McAndrew
Capitol Technology University, USA
It is my honor to be the editor-in-chief of IJMMM. I will do my best to work with the editorial team and help make this journal better.

IJMMM 2020 Vol.8(2): 40-45 ISSN: 1793-8198
DOI: 10.18178/ijmmm.2020.8.2.481

Studying the Effects of Using Two Types of Afos on the Hip Joint Kinematics and Kinetics during Walking in the Sagittal Plane for a Patient with Severe DDH; Part 1

Redha Alrikabi, Albert Chong, and Ahmad Sharifian
Abstract—Knowledge of using the Ankle foot Orthosis in patients with severe developmental dysplasia of the hip is crucial and may help to improve the gait cycle during walking. This paper aimed to evaluate and study the kinematics and kinetics of the hip joint during walking in the sagittal plane for a patient with severe hip dislocation age 26 ( the author of this paper) who is experiencing using two different types of ankle-foot Orthosis (Custom-made, and Leaf-AFO). The data were collected using ten cameras and one force plate. We used an inverse dynamic approach to calculate sagittal joint angles, moments and power. The results pointed out that The Custom-Orthosis had a higher moment during the late stance of the gait cycle than that of Barefoot; the data showed significant change by a mean difference of 0.1604 Nm/kg. however, the Leaf AFO Spring Orthosis did not change much the flexion moment during the late stance phase. The paper concluded that both orthosis wearing the custom –made AFO improved the kinetics of the hip joint in special while wearing the custom –made AFO leading to reduce the pain associated with loading during walking.

Index Terms—Developmental dysplasia of the hip (DDH), gait cycle, sagittal plane, kinematics and kinetics, motion capture analysis, AFOs.

Redha Alrikabi is with the Faculty of Engineering, University of Southern Queensland (e-mail: RedhaBurhanSalman.Alrikabi@usq.edu.au).
Albert Chong is with the School of Civil Engineering and Surveying, University of Southern Queensland, Australia (e-mail: albertkon-fook.chong@usq.edu.au).
Ahmad Sharifian is with the School of Mechanical and Electrical Engineering Department, University of Southern Queensland, Australia (e-mail: ahmad.Sharifian-Barforoush@usq.edu.au).

[PDF]

Cite: Redha Alrikabi, Albert Chong, and Ahmad Sharifian, "Studying the Effects of Using Two Types of Afos on the Hip Joint Kinematics and Kinetics during Walking in the Sagittal Plane for a Patient with Severe DDH; Part 1," International Journal of Materials, Mechanics and Manufacturing vol. 8, no. 2, pp. 40-45, 2020.

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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