Stroke is the leading cause of long term disability and has a major impact on societal and healthcare burden [1,2]. The recovery and rehabilitation process, if not well-managed, can lead to aftereffects which will impact on the quality of lives of the patients and their families. It was reported that early rehabilitation management after acute stroke leads to better outcomes and shorter hospitalization stays [3]. However, stroke rehabilitation is both manpower and resourceintensive. Hence, the shortage of skilled expertise and equipment is the primary limiting factor to the amount of rehabilitation each patient can receive. It is also observed that stroke patients spend a large part of their time resting in bed without any activity and this time could be better utilized for bedside therapy at their own convenience [4]. Existing hand exercisers, such as putty, elastic bands, grip strengtheners, soft balls and finger webs, are associated with disadvantages such as portability, durability, limited range of motion, and operational use on one hand only. Most devices also consist of only one elastic resistance in one unit, requiring the user to purchase multiple color-coded units as they progress in their rehabilitation or strength training. In this study, we aim to develop a portable, lightweight, and intuitively designed multifunctional soft hand exerciser with variable elastic resistances within one unit. The gradient feature of different resistance levels is expected to motivate and hasten user progress up the level of difficulty. This device should support a variety of finger, hand, wrist, and arm exercises in multiple planes of motion. Currently, this device is intended for use by outpatients suffering from hand injuries or disabilities, but with some residual strength in their fingers, hand, and wrist, and are in the stage of recovery toward regaining their strength. This portable and lightweight device is designed primarily for use at home to facilitate patient’s recovery outside of in-clinics therapy. Other user groups such as the elderly could also utilize this device for strength and flexibility training. Eventually, our goal is to make iterations to this device for use as a supplementary therapeutic intervention for stroke in-patients to self-manage a range of hand, finger, and wrist exercises by their bedside.
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