DocumentCode :
3189766
Title :
Directional vs non-directional modes of vibrotactile feedback for arm posture replication
Author :
Causo, Albert ; Tran, Le Dung ; Yeo, Song Huat ; Chen, I-Ming
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Nanyang Technol. Univ., Singapore, Singapore
fYear :
2012
fDate :
24-27 June 2012
Firstpage :
303
Lastpage :
308
Abstract :
This paper presents an integrated system for upper limb rehabilitation which uses small inertia-based sensors and vibrotactile feedback devices. Vibrotactile feedback is incorporated together with two Inertial Measurement Units (IMUs) attached at the upper arm and the forearm to measure arm motions. The whole arm posture is modeled using three parameters - wrist position, elbow position, and forearm´s orientation. Two different strategies of utilizing vibrotactile feedback for arm posture replication are discussed in this paper. The vibrotactile feedback is used firstly as a directional indicator and secondly as a non-directional indicator that informs the user of matching errors between the current posture and the target posture. The experiments involve seven student volunteers replicating five different arm postures. Results show that the non-directional vibrotactile feedback enables faster and more accurate arm posture correction.
Keywords :
biomechanics; biosensors; feedback; patient rehabilitation; position measurement; tactile sensors; IMU; arm motions measurement; arm posture correction; arm posture replication; directional indicator; elbow position; forearm orientation; inertia-based sensors; inertial measurement units; matching errors; nondirectional indicator; target posture; upper limb rehabilitation; vibrotactile feedback devices; wrist position; Actuators; Educational institutions; Elbow; Sensors; Shoulder; Vibrations; Wrist;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Robotics and Biomechatronics (BioRob), 2012 4th IEEE RAS & EMBS International Conference on
Conference_Location :
Rome
ISSN :
2155-1774
Print_ISBN :
978-1-4577-1199-2
Type :
conf
DOI :
10.1109/BioRob.2012.6290892
Filename :
6290892
Link To Document :
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