fig4

Figure 4. (A) Representation of the experimental setup including the CIL shape Eco30 sensor placed in a chest strap worn by the subject; (B) Respiratory signal collected during the breathing test showing the different phases of the protocol including slow and fast breathing and apnea phases; (C) Experimental setup used during the tapping test; (D) Signal collected during the tapping test, in the absence of touching the sensor with the finger, when a soft touch is applied and when a hard touch is applied; (E) Signal collected during the tapping test which includes deep tapping, slow tapping fast tapping and tapping as fast as possible.