The amputation is a millennial surgical intervention which occurs mainly due to accidents and wars. Actually, considering the greater of people's longevity, there was an increase in the incidence of amputations, especially because of pathologies inherent to age, modern life's habits and urban violence. As the amputation is millennial, the artifices used by the amputated people to gait adaption also are. Today there are many transfemoral prosthesis models and, thinking about that, this research has the objective of compare two prosthesis models, a mechanical (3R15, provided by the Unified Health System-SUS) and a microprocessed (C-Leg). Therefore, was performed a search for volunteers which has been using a mechanical prosthesis for at least 2 years produced by the Associacao de Assistencia a Crianca Deficiente of Pernambuco (AACD-PE). After an initial screening of volunteers, mobility and functionality tests were realized for evaluation of kinematic performance. The tests were realized in linear tracks and tracks with obstacles, based on Ottobock (R) test protocol. On average, the velocity in linear and square tracks improved of 33.33% and 36.75%, respectively, there was a decrease in the time spent in the obstacle test of 35.96% and an increase in the distance in the slop test of 21, 98%. Based on this and in the reduced number of volunteers, it is concluded, in this first moment, that the C-Leg microprocessed prosthesis is kinetically better than the mechanical prosthesis 3R15, allowing a greater quality of life for the user, but it is necessary increase the number of volunteers to have more robust results.
