The Accelerometer Mmg Measurement Approach, in Monitoring the Muscular Fatigue

This research aimed to appreciate whether the mechanomyogram (MMG) may be used to monitor the muscle behavior under fatiguing exercise. The electromyogram (EMG) and MMG were simultaneously recorded from the Biceps and from the Brachioradialis muscles, with surface electrodes EMG, and accelerometer based transducers – MMG, from sixteen subjects. The conclusions are consistent in validating the use of the median frequency (MF) MMG to monitor the development of the muscular fatigue in the isometric isotonic exercise, at 25 % maximal voluntary contraction (MVC). The same as for the MF EMG, the MF MMG steadily decreases from the very beginning of the exercise, down to exhaustion, again demonstrating the central component of the muscular fatigue.