A technique to train finger coordination and independence after stroke

Abstract

Purpose. Finger coordination and independence are often impaired in stroke survivors, preventing them from performing activities of daily living. We have developed a technique using a robotic interface, the HandCARE, to train these functions.

Method. The Hand Cable-Actuated REhabilitation (CARE) system can assist the subject in opening and closing movements of the hand, and can be adapted to accommodate various hand sizes and finger shapes.

Results. Two game-like exercises have been developed, which use a motivating approach to promote recovery of finger coordination and independence. Mathematical measures have been implemented to evaluate these functions. This technique is validated with two post-stroke subjects who practiced for 20 minutes twice a week during eight weeks.

Conclusions. The results show significant improvements in finger coordination, force modulation as well as finger independence.

Keywords:

• Rehabilitation robot
• finger training
• stroke

Acknowledgements

This work is funded by the National University of Singapore (R265-000-168-112), Natural Sciences and Engineering Research Council of Canada and Imperial College London. The authors thank therapists and stroke patients at stroke recovery clubs in Singapore and Vancouver, who have all contributed to the design and the evaluation of the device presented in this article.