Table 1. Descriptive statistics.

		Walk 1				Walk 2
		Out		Back		Out		Back
		SUSC	CONTR	SUSC	CONTR	SUSC	CONTR	SUSC	CONTR
Head
Mean Head Velocity [°/s]		14.6±5.1	19.8±5.1	16.6±6.0	21.3±4.3	12.2±3.7	18.9±4.6	15.0±5.2	20.9±4.3
Median Head Direction, Yaw [°]		5.0±5.6	8.4±10.2	3.5±14.8	12.0±12.0	4.3±5.2	11.2±11.9	3.8±14.5	11.0±12.7
Head Interquartile Range, Yaw [°]		6.6±5.6	14.5±12.1	7.8±5.3	21.2±25.8	5.2±3.6	17.8±16.0	6.8±4.6	16.6±14.9
Median Head Direction, Pitch [°]		−2.0±4.3	1.7±4.2	−3.6±3.2	−4.6±6.9	−2.6±5.7	−0.7±6.6	−0.6±2.3	−4.1±7.8
Head Interquartile Range, Pitch [°]		4.9±4.7	7.4±4.4	6.7±5.8	10.9±7.4	4.8±3.8	10.2±9.1	4.4±2.4	9.7±6.0
Eye
Saccade Amplitude [°]		11.4±3.3	10.8±3.87	10.8±3.1	12.5±4.8	10.2±1.9	9.0±2.31	11.0±4.1	10.8±2.1
Saccade Frequency [1/s]		2.93±0.93	3.17±0.72	2.87±0.88	3.11±0.63	2.83±0.85	3.13±0.7	2.99±0.73	3.01±0.78
Fixation Duration [s]		0.32±0.16	0.28±0.11	0.33±0.15	0.27±0.09	0.36±0.21	0.28±0.09	0.30±0.10	0.30±0.14
Gait
Velocity [m/s]		0.79±0.22	1.14±0.18	0.96±0.21	1.19±0.17	0.91±0.2	1.16±0.2	1.05±0.15	1.23±0.18
Step Frequency [1/s]		1.41±0.21	1.76±0.19	1.55±0.19	1.78±0.2	1.51±0.19	1.76±0.25	1.57±0.15	1.79±0.2
Step length [m]		0.54±0.1	0.63±0.07	0.61±0.08	0.65±0.07	0.58±0.08	0.64±0.08	0.64±0.07	0.66±0.07

Head movement, eye movement, and gait parameters. Mean values for group are given with standard deviations.