Table 4.

The top predictive models for the three simplest configurations and their relevant characteristics and performance.

Sensor Configuration	Sensor Location	Test Battery	Features	Accuracy	Sensitivity	Specificity
Single-sensor	Thorax	Balance with Dual-task	Dual_Balance_Thorax Linear Acc 2	0.86	0.91	0.8
	Thorax	TUG with Dual-task	Dual_TUG_Turn and Sit	0.76	0.73	0.8
	Thorax	Balance with Dual-task, TUG with Dual-task, STS	Dual_ Balance_Thorax Linear Acc 2, Dual_TUG_Turn and Sit, STS_Time, Age, Dual_STS_Thorax Ang Vel	0.91	0.91	0.9
	Pelvic	STS	Dual_STS_std Pelvic Ang Vel	0.76	0.73	0.8
	Pelvic	TUG with Dual-task, Balance, STS with Dual-task	Dual_TUG_Turn and Sit, Dual_STS_std Pelvic Ang Vel, Fear (FES), Balance_Pelvic Linear Acc 4	0.81	0.82	0.8
Double-sensor	Thorax and Pelvic	Balance w/o Dual-task	Dual_Balance_Thorax Linear Acc 2, Balance_Pelvic Linear Acc 4, Balance_Thorax Linear Acc 4	0.91	0.82	1
	Upper Legs	TUG with Dual-task	Dual_TUG_Turn and Sit	0.76	0.73	0.8
	Lower Legs or Feet	TUG and 10MWT	10MWT_mean Swing Total, TUG_Cadence toward Chair	0.81	0.82	0.8
Triple-sensor	Upper Legs and Thorax	Balance with Dual-task, TUG	Dual_Balance_Thorax Linear Acc 2, TUG_Walk toward Cone	0.91	0.82	1
	Lower Legs or Feet and Thorax	Balance and STS with Dual-task, TUG	Dual_Balance_Thorax Linear Acc 2, TUG_Walk toward Cone, Dual_STS_Thorax Ang Vel	0.91	0.91	0.9