Myo-Electric Controls — A Challenge to Occupational Therapists?

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Abstract
Developments in the field of electronics have made it possible to use physiological signals in the control of external power systems. The relationship between man and machine is complex and difficult. Review of myo-electric controls and functional electrical stimulation in prosthetics, orthotics and other fields indicates the extent of current clinical application. Advantages and disadvantages of 2-state, 3-state, proportional and other control systems are considered, and problems related to lack of sensory feedback, delay in movement response, etc. explored. The role of the occupational therapist as an interface between man and machine, using unique skills in patient assesment, selection of controls, training and evaluation of systems is discussed. The need for occupational therapists to become involved in research and development and to acquire specialized knowledge in applied sciences and biomechanics is emphasised.

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