We have developed an original haptic system that, depending on the mechanical configuration, offers training of all aspects of the upper extremity movement. The system has only two active degrees of freedom, thus, offering possibilities to develop adaptive low-cost virtual reality environment for robot-assisted training and rehabilitation that can be used at homes of individual users. This is an important step toward new telerehabilitation services.
F.32 International patent
COBISS.SI-ID: 2128489We used a novel method for decomposition of high-density surface electromyograms into contributions of individual motor units and estimated changes of motor unit action potential (MUAP) shapes during dynamic shortening of four different skeletal muscles in healthy young volunteers. Estimated MUAP shapes were organized and stored into common database, supporting systematic analysis of MUAP shape changes caused by muscle geometry. This is a worldwide novelty, as never before has this problem been systematically studied in experimental conditions. The MUAP database is of paramount importance for the analysis and interpretation of surface electromyograms, recorded during dynamic muscle contractions.
F.15 Development of a new information system/databases
COBISS.SI-ID: 20063254We extended preexisting simulator of high-density surface electromyograms (hdEMG) to dynamic contractions of skeletal muscles. Simulator comprises two main parts. First, dynamic changes of motor unit action potentials (MUAPs) due to muscle shortening are simulated. Second, the increase in depth of simulated motor units (MUs) due to shortening and thickening of muscle fibers is simulated. MU firing patterns are generated with the preexisting simulator and convolved with simulated MUAPs to yield hdEMG. In this way, the hdEMG simulator can be used to generate dynamic hdEMG of arbitrary muscle shortening, thickening and excitation profiles. This simulator is of paramount importance for validation of hdEMG analysis algorithms in dynamic contractions and for interpretation of various experimental observations.
F.07 Improvements to an existing product
COBISS.SI-ID: 20062742