Degenerative neuromuscular diseases as muscular dystrophy may severely reduce the autonomous mobility of the subject’s limbs. Most subjects can recover some autonomy by means of external devices mounted on their wheelchairs. The helping devices can be active — generally motor driven- or passive. Sometime the active devices require a driving action of the contralateral upper limb. Following a specific request of some people, as first step of the research a simple and passive helping device has been designed, built and tested on subjects affected by muscular dystrophy (MD). The preliminary tests demonstrate that the prototype can increase the subjects’ upper limbs range of motion and that it is well accepted by the dystrophic patients.

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