Gait trials of an active AFO for Achilles tendon ruptures

Author

Yoshizawa, Nobuyuki

Author_Institution

Nippon Inst. of Technol., Miyashiro, Japan

fYear

2009

fDate

23-26 June 2009

Firstpage

253

Lastpage

256

Abstract

This paper describes experimental results obtained for level walking using an active ankle foot orthosis (AAFO) for a ruptured Achilles tendon. The sole of the AAFO is equipped with a servomotor. The actuator can switch the upright and the forward stepping posture of the patient. In gait trials, 1. the use of the AAFO made it possible for the patient to walk without the help of crutches with the ankle in a fixed position. 2. Joint kinematics and stick pictures at a walking speed of 1 km per hour were analyzed. 3.The cross-correlation coefficient between the ankle angle and the EMG signal of the lower leg was small.

Keywords

actuators; electromyography; fracture; gait analysis; orthotics; patient rehabilitation; servomotors; Achilles tendon; EMG; active ankle foot orthosis; actuator; ankle angle; cross-correlation coefficient; joint kinematics; level walking; lower leg; rupture; servomotor; Actuators; Electromyography; Foot; Kinematics; Leg; Legged locomotion; Servomotors; Signal analysis; Switches; Tendons;

fLanguage

English

Publisher

ieee

Conference_Titel

Rehabilitation Robotics, 2009. ICORR 2009. IEEE International Conference on

Conference_Location

Kyoto International Conference Center

ISSN

1945-7898

Print_ISBN

978-1-4244-3788-7

Electronic_ISBN

1945-7898

Type

conf

DOI

10.1109/ICORR.2009.5209617

Filename

5209617