METHOD OF USING THE EMBEDDED SENSORS IN SMARTPHONE TYPE DEVICES FOR DETERMINING BIOMECHANICAL PERFORMANCE DATA IN BODYBUILDING EQUIPMENT

摘要

method of using sensors embedded in smartphone-type devices to determine biomechanical performance data in weight training equipment ”. refers to a method and algorithm for using motion sensors (accelerometer, gyroscope and magnetometer) contained in smartphone-type devices to determine the acceleration, force, speed, power and position data of weight equipment so that they can be used to control the training results of athletes and to determine the optimal load. in their correct form of use, smartphones (1) must be attached to the center of the weight bars (3), weights or dumbbells. then, the data obtained by the three sensors are resampled for a regular sampling rate. the acceleration data are rotated to the global benchmark, calibrated by subtracting the acceleration z by the statically measured gravity value constant, filtered by a digital filter rejects range and a low pass, doubly integrated to obtain the linear position data and corrected by a kalman filter based on magnetic field data. the resulting data is automatically interpreted by an algorithm (23) that classifies the volunteers according to their level of performance in the modality, generates reports and sends it to the digital cloud and / or email.