Eletronic Instrumentation in Lofstrand: Dynamic Force and Attitude Monitoring

This work provides quantitative data related to the use of Lofstrand crutches, these data are the strengthapplied on the armrest to the contact surface, the angle of the crutch relative to its axis of origin.Modular sensors of magnetometer, gyroscope and accelerometer were used. The results presented are: the dynamic force variation in the order of 0 kgf to 50 kgf was measured by the Force Sensing Resistor (FSR) sensor indicating the convergence of the data with the theoretical reference. Another innovative contribution of this work is the geoprocessing during the walk of the user. Finally, the purpose of the system is to explore the use of the Canadian crutch for the walking response and consequent storage of the users data, providing a mapping for user walk.