Fig. 9From: Human activity monitoring system based on wearable sEMG and accelerometer wireless sensor nodesTriceps brachii signals. Three-axis accelerometer signals (a) and sEMG signal (b) simultaneously acquired from the sensor applied to the triceps brachii during the exercise, consisting in 10 biceps curls, 11 lateral raises, an isometric contraction, and 11 vertical raisesBack to article page