Gait Assessment of Younger and Older Adults with Portable Motion-Sensing Methods: A User Study

Figure 3

An example of motion-sensor data of the ankle when the participant was walking back and forth. The collected data were visualized on a cloud-based website. The website interface displayed the acceleration and Euler angle of the three axes. (a) The acceleration pattern and (b) the Euler angle pattern. The X-axis is time. The Y-axis is acceleration for (a), and the unit is gravity (). The Y-axis is Euler angle for (b), and the unit is degree. Each waveform represented a step. An abrupt change of the Euler angle on the Y-axis (green line) indicated a turn.

(a)

(b)