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Quantifying Arm Non-use during Hand Reaching Movements After a Stroke: Development, validation and potential implementation in computer games for maladaptive trunk compensation| old_uid | 14799 |
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| title | Quantifying Arm Non-use during Hand Reaching Movements After a Stroke: Development, validation and potential implementation in computer games for maladaptive trunk compensation |
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| start_date | 2014/12/11 |
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| schedule | 10h30-12h |
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| online | no |
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| location_info | EuroMov, salle Marey |
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| summary | After a Cerebral Vascular Accident (CVA), most patients use motor compensation strategies to carry out certain tasks with their paretic upper limb (Levin et al., 2002), particularly in the first stage of recovery. For example, they use trunk movements excessively to move their hand towards a target, whilst their elbow remains flexed. There are arguments in literature to show that compensatory trunk movement limits active elbow extension recovery and equally limits the recovery of synergy between the shoulder and elbow (Roby-Brami, 2003). In rehabilitation, everything is done to reduce this compensation in order to obtain quality motor recovery. It is important to obtain an index to assess this Maladaptive Trunk Compensation (MTC) precisely in order to try to decrease it and to promote the emergence of better motor quality. MTC is calculated from the difference between the ratio of the trunk movement over the hand movement (Compensation index : CI) in both conditions: the first when the subjects make the movement without any restriction and the second when they make the movement with the trunk restrained using Zebris ultrasonic movement tracking (validation in the framework of KineIndex hospital research protocol). This method of calculating the MTC is independent of any measuring systems. And, for the patients’ rehabilitation to be more efficient, a simpler system like Kinect (Microsoft) providing equivalent results could be used. Technological advances and the Kinect system could provide similar MTC measurement to the reference system (Zebris). This objective MTC index can be used regularly for the diagnosis learned non-use of the arm in post CVA patients (to separate patients who need trunk rehabilitation or not). The Kinect system is an efficient, easy to use, fast, cheap measure of movement quality of the upper limb that can guide, evaluate treatments (rehabilitation) and monitor the rehabilitation progress. The calculation of MTC could be implemented in video games for rehabilitation that could suggest a follow-up at home and a better (more effective investment in their own recovery), longer and less costly rehabilitation. So, MTC may guide rehabilitation for optimal motor recovery through neuroplasticity thereby avoiding maladaptive plasticity. |
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| responsibles | Hoffmann, Marin |
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