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Motor rehabilitation is one of the aspects which have great impact in the treatment of injuries, as they prevent that temporary disability due to an accident or illness, become permanently disabled. There are different types of motor rehabilitation carried out depending on the type of lesion and the patient characteristics; they can be grouped into passive rehabilitation, when exercises are performed...
In order to early diagnosis and treatment of knee abnormalities, in this study an automated diagnosis system using wearable EMG and goniometer sensors is proposed. Eight different classification techniques are investigated with a set of time-domain features. The experiments are conducted with 22 subjects' data and the best accuracy of 97.17% is achieved based on the Bagged Decision Trees classifier...
The study of fatigue is an important tool for diagnostics of disease, sports, ergonomics and robotics areas. This work deals with the analysis of sEMG most important fatigue muscle indicators with use of signal processing in isometric and isotonic tasks with the propose of standardizing fatigue protocol to select the data acquisition and processing with diagnostic proposes. As a result, the slope...
A system for data acquisition and analysis of nociceptive withdrawal reflex (NWR) and reflex receptive field (RRF) is introduced. The system is constituted by hardware and software components. The hardware consists of devices commonly used for electrical stimulation and electromyographic and kinematic data recording. The software comprises two different programs: Wirex, a stand-alone program developed...
This paper aims to develop a man-machine interface utilizing myoelectricity as input signals. The accurate relationship between an operator's intention and myoelectricity arising as the result of the intension is required to realize such an interface. In our study, paying attention to the wrist motion, an NARX model from myoelectricity as input to the wrist angle as output is derived, and is utilized...
We have developed a vector tissue Doppler imaging (TDI) system based on a clinical scanner that can be used to measure muscle velocities independent of the direction of motion. This method overcomes the limitations of conventional Doppler ultrasound, which can only measure velocity components along the ultrasound beam. In this study, we utilized this method to investigate the rectus femoris muscle...
This paper presents an adaptive robust posture controller for a parallel manipulator driven by pneumatic muscles (PMDPM) with a redundant DOF. Rather severe parametric uncertainties and uncertain nonlinearities exist in the dynamics of the PMDPM. To deal with these uncertainties effectively, the recently developed adaptive robust control strategy is applied. Furthermore, the developed control strategy...
The author studied the adaptation of simple movements to changes in load. Subjects practised rapid wrist movements until they were consistent. Then they suddenly changed the inertial load, simulated by a computer-controlled motor. Adaptation to a much larger inertia occurred over the course of a few movements. The authors studied the mechanisms of adaptation using a model of the movement system and...
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