Electromyographic assessment on transfemoral amputees to possibly control artificial lower limbs Online publication date: Sun, 18-Jan-2015
by Girardi Carolina Alves; Diogo de Carvalho Rispoli; Vinícius de Carvalho Rispoli; Vera Regina Fernandes da Silva Marães
International Journal of Biomedical Engineering and Technology (IJBET), Vol. 17, No. 1, 2015
Abstract: This study aimed to assess the electromyographic feasibility of different hip muscles on transfemoral unilateral lower limb amputees to a possible control of artificial limbs. The volunteers were split into two groups: eight males, physically active amputees and a control group composed of eight males, healthy, non-amputees individuals. The hip muscles were assessed in accordance to the general consensus by SENIAM project, and some adaptations were made in the amputees when the anatomical references were absents, such as the knee articulation. Thus, agonists and antagonists skeleton muscles were evaluated during the isometric contraction of hips movements of extension and flexion, which were controlled by an isokinect chair. The median frequency (Fmed) values did not represent significant differences and the RMS is the best muscle activity of amputees.
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