Table 1.

Overview of the sensing mechanism of wearable sensors.

Type of Wearable Sensor		Outcome Measurement	Location of Sensor
Inertial motion sensor	Accelerometer	Linear acceleration of X, Y, and Z movements in a three dimensional space	Body segment
	Gyroscope	Angular velocity: extent and rate of rotation in a three dimensional space (roll, pitch, and yaw)	Body segment
	Magnetometer	Direction: absolute angular movements relative to the Earth’s magnetic field	Body segment
Planter force sensor		Plantar force/pressure information	Plantar surface of foot