Fuzzy Warning System against Ulnar Nerve Entrapment

Providing sensory innervation, the ulnar nerve runs from the shoulder to the little finger; however, when entrapped in wrist, numbness and decreased sensation would occur. One of the reason is habitual misuse of computer keyboards in harmful wrist angles, causing constant pressure on the nerve. Therefore in this paper, we present a methodology for identification of the hands including localization of the wrists, supported by a fuzzy warning system. Initially, on the images taken by a camera mounted above a laptop monitor, hands and the left wrist are recognized. Subsequently, angle of the wrist is estimated and the fuzzy warning system is triggered by the angle and the duration, as inputs. While putting forward a new monitoring protocol, a novel application area of fuzzy warning system in preventive medicine is presented to improve the health of individuals and quality of life.