Beyond timing and step counting in 360° turning-in-place assessment: a scoping review

Table 3 Kinematic and other variables, and source signals used in time limited 360° turning-in-place assessment

	Overall data acquisition systems	Variable	Source data for variable
	Overall data acquisition systems	Variable	Sensor location	Signal	Axis
[60]	8 IMU sensors	Peak angular velocity	Lower back	Angular velocity	Yaw
		FOG Ratio	Shank	Acceleration	AP
		Jerkiness	NR	Acceleration	ML
		Number of turns	Lower back	Angular velocity	Yaw
		Turn duration	Lower back	Angular velocity	Yaw
[61]	3 IMU sensors	Peak angular velocity	NR	Angular velocity	Yaw
		AP range of acceleration	NR	Acceleration	AP
		ML range of acceleration	NR	Acceleration	ML
		Turn duration	Lower back	Magnetometer signal	Planar
		Number of steps	feet	Angular velocity	Pitch
		AP jerkiness	NR	Acceleration	AP
		ML jerkiness	NR	Acceleration	ML
[62]	1 IMU sensor	Mean/peak angular velocity	Lower back	Angular velocity	Yaw
[62]	1 IMU sensor	Jerkiness	Lower back	Acceleration	ML
[63]	3 IMU sensors	Mean/peak angular velocity	NR	NR	NR
		Jerkiness	NR	Acceleration	ML
		FOG ratio	Shank	Acceleration	AP
[57]	8 IMU sensors	Peak angular velocity	NR	NR	NR
[57]	8 IMU sensors	Turn duration	NR	NR	NR
[64]	IMU sensors^a	FOG ratio	Shank	Acceleration	AP
[66]	8 IMU sensors	Peak angular velocity	Trunk	Angular velocity	Yaw
		FOG ratio	Shank	Acceleration	AP
		Jerkiness	NR	NR	NR
		Number of turns	Trunk	Angular velocity	Yaw
[68]	IMU sensors^a	FOG ratio	Ankle	Acceleration	AP

^aTotal number of sensors is not reported, NR not reported, AP antero-posterior, ML medio-lateral

ISSN: 1475-925X