Research Design:
We hypothesize that: 1) Gains in proximal arm function (shoulder, elbow) immediately after robotic training will be greater than after dose-matched conventional therapy; 2) Unlike in previous studies, gains in hand function immediately after robotic training will be greater than after dose-matched conventional therapy.
Methodology:
In the first year of the study, we will develop a robotic system with the ability to assist hand movement. Since many stroke survivors in the subacute and chronic recovery stages have residual ability to flex the fingers but severely limited finger extension, we will build a hand exoskeleton that can apply precise extension forces to the digits of the hand. This exoskeleton will be integrated with the ARMin III arm exoskeleton so that tasks such as arm reach, grasp of an object and release of the object can be trained. In the last 2 years of the project, we will perform a pilot clinical trial comparing this new training paradigm to dose-matched conventional therapy in chronic stroke survivors. Outcome measures will be taken before training and immediately after training.
