Browsing by Keyword "stroke rehabilitation"
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Item ArmAssist: Development of a functional prototype for at-home telerehabilitation of post-stroke arm impairment(2012) Perry, Joel C.; Zabaleta, Haritz; Belloso, Aitor; Rodriguez-De-Pablo, Cristina; Cavallaro, Francesca I.; Keller, Thierry; Tecnalia Research & InnovationGrowing numbers of stroke survivors are leading to increasing numbers of motor deficits, the majority of which include deficiencies in arm function. There is a strong need, therefore, to find new tools and strategies for providing efficient and effective sub-acute patient care. The requirements for such a device are outlined from both patient and therapist perspectives, and a new prototype system for sub-acute arm training in post-stroke care is presented. The complete system is composed of a base module with quick-connecting hand and forearm orthoses, a global position detection mat, and an all-in-one touchscreen PC with telerehabilitation software and interfaces. The size and portability of the system allow it to be easily moved and setup in the patient home to enable increased durations and intensity of training outside of the standard inclinic care.Item Development of a powered mobile module for the ArmAssist home-based telerehabilitation platform(2013) Jung, Je Hyung; Valencia, David B.; Rodriguez-De-Pablo, Cristina; Keller, Thierry; Perry, Joel C.; Medical Technologies; Tecnalia Research & InnovationThe ArmAssist, developed by Tecnalia, is a system for at-home telerehabilitation of post-stroke arm impairments. It consists of a wireless mobile base module, a global position and orientation detection mat, a PC with display monitor, and a tele-rehabilitation software platform. This paper presents the recent development results on the mobile module augmenting its functionality by adding actuation components. Three DC servo motors were employed to drive the mobile module and a position control algorithm based on the kinematic model and velocity mode control was implemented such that the module tracks a path defined in the training software. Pilot tests of the powered mobile module were performed in experiments with different load conditions and two unimpaired subjects. Both test results show that the module is able to follow the predefined path within an acceptable error range for reach movement training. Further study and testing of the system in realistic conditions following stroke will be a future topic of research.Item Improving the match between ability and challenge: Toward a framework for automatic level adaptation in game-based assessment and training(2013) Perry, Joel C.; Balasubramanian, Sivakumar; Rodriguez-De-Pablo, Cristina; Keller, Thierry; Tecnalia Research & InnovationIt is believed that the quality of arm mobility in planar reach movements can be adequately characterized by measures of planar position and vertical force. For the purpose of impairment assessment, it is further proposed that a complete picture of mobility performance can be represented through the assessment of metrics representative of each of four capacities: 1) Range of motion, 2) Range of force, 3) Control of motion, and 4) Control of force. In this paper, a set of games for mobility assessment is presented and initial plots of motion profiles and several computed metrics are shown for one patient in the performance of range of motion and control of motion assessments. Assessment plots are shown for four of seven training sessions and metrics are computed at each of the seven sessions to show the progression over the course of the 2-week clinical pilot study with the ArmAssist.