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).