TY - JOUR
T1 - Influence of Retromalleolar Trimline Dimensions on Posterior Leaf Spring Ankle-Foot Orthosis Stiffness
T2 - A Finite Element Analysis Approach
AU - Putra, Alfian Pramudita
AU - Hidayat, Arief Sofian
AU - Rahmatillah, Akif
AU - Pujiyanto,
AU - Ain, Khusnul
AU - Pawana, I. Putu Alit
AU - Gusti, Agrippina Waya Rahmaning
N1 - Publisher Copyright:
© 2023, Mathematical Modelling of Engineering Problems. All Rights Reserved.
PY - 2023
Y1 - 2023
N2 - Stroke is the leading cause of physical disabilities worldwide, often resulting in foot drop. Ankle-Foot Orthoses (AFOs) can enhance posture in foot drop cases and augment lower limb stability to support body weight. The Posterior Leaf Spring AFO (PLS AFO), a specific type of AFO, features a narrow retromalleolar region that allows movement without necessitating external force while influencing the AFO's stiffness. This parameter is crucial for determining the mechanical behavior of PLS AFOs. In this study, the impact of the retromalleolar trimline on the stiffness of a 3D PLS AFO model is investigated using the finite element method. Trimline widths of 8 cm and 10 cm, and a thickness of 10 mm, are examined. A 637 N load is applied to the calf area of the 3D PLS AFO model. The results demonstrate that stiffness increases proportionally with retromalleolar trimline width. A PLS AFO configuration with an 8 cm retromalleolar trimline width, 10 mm thickness, and carbon fiber material is deemed suitable for poststroke foot drop rehabilitation, as it provides improved foot clearance during the swing phase.
AB - Stroke is the leading cause of physical disabilities worldwide, often resulting in foot drop. Ankle-Foot Orthoses (AFOs) can enhance posture in foot drop cases and augment lower limb stability to support body weight. The Posterior Leaf Spring AFO (PLS AFO), a specific type of AFO, features a narrow retromalleolar region that allows movement without necessitating external force while influencing the AFO's stiffness. This parameter is crucial for determining the mechanical behavior of PLS AFOs. In this study, the impact of the retromalleolar trimline on the stiffness of a 3D PLS AFO model is investigated using the finite element method. Trimline widths of 8 cm and 10 cm, and a thickness of 10 mm, are examined. A 637 N load is applied to the calf area of the 3D PLS AFO model. The results demonstrate that stiffness increases proportionally with retromalleolar trimline width. A PLS AFO configuration with an 8 cm retromalleolar trimline width, 10 mm thickness, and carbon fiber material is deemed suitable for poststroke foot drop rehabilitation, as it provides improved foot clearance during the swing phase.
KW - ankle foot orthosis
KW - finite element analysis
KW - gait disorder
KW - healthcare
KW - posterior leaf spring ankle foot orthosis
KW - rehabilitation
UR - http://www.scopus.com/inward/record.url?scp=85165096399&partnerID=8YFLogxK
U2 - 10.18280/mmep.100331
DO - 10.18280/mmep.100331
M3 - Article
AN - SCOPUS:85165096399
SN - 2369-0739
VL - 10
SP - 979
EP - 984
JO - Mathematical Modelling of Engineering Problems
JF - Mathematical Modelling of Engineering Problems
IS - 3
ER -