Banerji Subhasis

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dosbs@nus.edu.sg


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    Upper extremity rehabilitation after stroke: Biofeedback gaming for attention and muscle use
    (2012) Banerji, S.; Heng, J.; Pereira, B.; ORTHOPAEDIC SURGERY
    One of the most important objectives of therapy is the biomechanically correct use of muscles during various rehabilitation exercises, particularly functional tasks practice. Due to the lack of quantifiable real-time measures during therapy, wrong muscles can repeatedly be activated. Another important objective is that the patients maintain a highly attentive state during therapy sessions. This paper outlines a biofeedback g a m i n g system which will enable the user to interact with an 8-channel arm glove while self-administering basic therapy for hand, wrist and forearm. This graphic user interface is driven by muscle and brain signals. The game design keeps in mind specific challenges of patients with right side hemiplegia, i.e. those with left brain lesions. This category of patients has a high probability of difficulties with language, cognition, number and word recognition, visual resolution and the like. Results are described as feedback from healthy subjects in various age groups who used the system, as a precursor to trying the games on stroke patients.
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    A physio-neuro approach to accelerate functional recovery of impaired hand after stroke
    (2012) Banerji, S.; Kuah, C.W.K.; Heng, J.; Kong, K.H.; ORTHOPAEDIC SURGERY
    Hand function disability after stroke is the greatest obstacle to independent living. Rehabilitation of hand function is known to be more effective if patients can start therapy as early post-stroke as possible, and dedicate maximum therapy hours during hospital stay. Constraints such as a rapidly increasing patient-therapist ratio and a shortage of beds for stroke patients often prevent ideal rehabilitation therapy. One solution could be a system that can guide the patient in practicing key functional hand movements unsupervised as well as record data for tracking and reviewing progress. This paper describes a pilot experiment with a new Rehabilitation Platform. It consists of a mirror-image instruction video which guides the stroke patient through a therapy protocol; an arm glove provides EMG biofeedback simultaneously to highlight incremental progress and self-regulation in muscle use. This forms a part of the overall physio-neuro platform named "SynPhNe". It is being tested to drive an accelerated hand function rehabilitation process. Initial results suggest that in early poststroke therapy, it may be possible to accelerate functional recovery of the hand by leveraging the ability of the brain-muscle system to respond favourably to both components of the platform-mirror image visual input and biofeedback. © 2012 The Authors.