TABLE III.

Comparison of performance of the proposed algorithms with El-Gohary et al. [1] for various turning metrics (mean ± SD) in discriminating PD from HC during 180° turns in a prescribed 2-minute walk.

Metric	El-Gohary et al. [1]			Discrete Turn Algorithm			Merged Turn Algorithm
	HC (N=64)	PD (N=127)	AUC	HC (N=64)	PD (N=127)	AUC	HC (N=64)	PD (N=127)	AUC
Turn Angle (°)	181.17 ± 5.19	170.51 ± 12.72	0.84	183.68 ± 5.24	175.52 ± 11.31	0.83	182.40 ± 4.88	176.63 ± 6.42	0.82
Turn Duration (s)	2.08 ± 0.26	2.63 ± 0.49	0.87	2.46 ± 0.26	3.19 ± 0.67	0.90	2.41 ± 0.26	3.26 ± 0.96	0.91
Steps in Turn (#)	3.42 ± 0.71	4.36 ± 1.00	0.80	4.28 ± 0.60	5.49 ± 1.13	0.85	4.16 ± 0.57	5.56 ± 1.54	0.87
Turn Rate Average (°/s)	89.29 ± 11.55	67.71 ± 13.99	0.90	76.16 ± 8.50	57.5 ± 11.50	0.92	77.29 ± 8.57	57.95 ± 11.97	0.92
Turn Rate Max (°/s)	191.49 ± 27.76	138.48 ± 34.83	0.89	181.19 ± 25.71	132.61 ± 33.29	0.88	181.19 ± 25.71	132.90 ± 33.00	0.88