Fig. 2
From: Mobility assessment in people with Alzheimer disease using smartphone sensors
Delimitation of tasks performed during the test. The three lines below the figures represent the accelerometer signal in the different tasks of the test. Green shade: walking; Red shade: turning and sitting; Blue shade: Getting up from the chair; Yellow shade: walking back to the starting position; Acc_V: accelerometer signal in the vertical axis; Acc_ML: accelerometer signal in the medial-lateral axis; Acc_AP: accelerometer signal in the anterior-posterior axis