Application of external forces on an active orthosis

Author

Yeltekin, Aysin ; Corbin, Max

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA

fYear

1992

fDate

18-20 Aug 1992

Firstpage

221

Lastpage

225

Abstract

The authors examined the effect of external forces applied on the surface of the lower extremities for the case of missing quadriceps. They developed a computer model using engineering modelling software for the lower extremities so one can locate the origin, insertion and effective origins of the lower limb muscles using previous anthropometric data. The earlier muscle models are used to compute the musculotendon forces. The first 24% of the gait cycle is considered. The muscle forces generated by rectus femoris and vasti are computed. Then, the patients without quadriceps are considered on the same model and single linear electro-mechanical actuator `artificial muscle´ is applied to compensate the effect of lost muscles for the early stance of the gait cycle. The validity of the suggested rehabilitation schemes is verified

Keywords

biomechanics; medical computing; muscle; orthotics; physiological models; active orthosis; artificial muscle; biomechanical model; computer model; electromechanical actuator; external forces; gait cycle; kinematic data; lower extremities; missing quadriceps; muscle forces; musculotendon forces; rehabilitation schemes; Actuators; Biological system modeling; Bones; Equations; Extremities; Hip; Knee; Muscles; Prosthetics; Thigh;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering Days, 1992., Proceedings of the 1992 International

Conference_Location

Istanbul

Print_ISBN

0-7803-0743-7

Type

conf

DOI

10.1109/IBED.1992.247117

Filename

247117