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PADULA, N. Motor responses during body weight support treadmill gait at different speeds in individuals with spinal cord injury. 2018. XX f. Dissertação (Mestrado em Ciências) – Escola de Educação Física e Esporte, Universidade de São Paulo, São Paulo. 2018. Spinal Cord Injury (SCI) affects the individual's functionality and can gradually reduce independence. The restoration of mobility and walking, is one of the main goals of the interventions in SCI population. In this context body weight support treadmill training (BWSTT) is an intervention used to provide specific sensory stimuli to the damaged nervous system to stimulate the networks and circuits preserved in the spinal cord. Velocity is an important sensory afferment during the BWSTT. Objective: to investigate the effect of speed variation on motor responses of use with spinal cord injuries BWSTTl. Method: 20 healthy subjects composed the control group (CG) and 13 with complete SCI (SCIG) were submitted to BWSTT at speeds 2, 3 and 4 km/h. An EMG analysis was performed to evaluate the muscle activity of lateral vastus (LV), biceps femorales (BF), tibial anterior (TA) and gastrocnemius lateral (GL) throughout the cycle of the step. Results: The CG had greater distal muscle activity TA and GL when compared to GLM with greater proximal activity, VL and BF, during all gait phases. The velocity that presented greater muscular activity was the intermediate (3km/h), when compared as speeds 2Km/h and 4km/h. Increased speed resulted in greater influence on the distal muscles. Conclusion: the velocity can influence motor responses. Increased speed had an important role in increasing muscle activity, however, muscle activity was greater at intermediate velocity (3km / h).

Respostas motoras durante a marcha com suporte de peso corporal na esteira em diferentes velocidades em indivíduos com lesão medular