tailieunhanh - Báo cáo hóa học: " Patient-cooperative control increases active participation of individuals with SCI during robot-aided gait training"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Patient-cooperative control increases active participation of individuals with SCI during robot-aided gait training | Duschau-Wicke et al. Journal of NeuroEngineering and Rehabilitation 2010 7 43 http content 7 1 43 l dl JOURNAL OF NEUROENGINEERING NCR AND REHABILITATION RESEARCH Open Access Patient-cooperative control increases active participation of individuals with SCI during robot-aided gait training Alexander Duschau-Wicke1 2 3 3 Andrea Caprez1 2 43 Robert Riener1 2 Abstract Background Manual body weight supported treadmill training and robot-aided treadmill training are frequently used techniques for the gait rehabilitation of individuals after stroke and spinal cord injury. Current evidence suggests that robot-aided gait training may be improved by making robotic behavior more patient-cooperative. In this study we have investigated the immediate effects of patient-cooperative versus non-cooperative robot-aided gait training on individuals with incomplete spinal cord injury iSCI . Methods Eleven patients with iSCI participated in a single training session with the gait rehabilitation robot Lokomat. The patients were exposed to four different training modes in random order During both noncooperative position control and compliant impedance control fixed timing of movements was provided. During two variants of the patient-cooperative path control approach free timing of movements was enabled and the robot provided only spatial guidance. The two variants of the path control approach differed in the amount of additional support which was either individually adjusted or exaggerated. Joint angles and torques of the robot as well as muscle activity and heart rate of the patients were recorded. Kinematic variability interaction torques heart rate and muscle activity were compared between the different conditions. Results Patients showed more spatial and temporal kinematic variability reduced interaction torques a higher increase of heart rate and more muscle activity in the patient-cooperative path control mode with individually adjusted support than in the .