TABLE I.

Individual Optical Marker Data and IMU Data for (A) Vertical Displacement (cm), (B) Left Foot Clearance (cm), in Four Subjects during Walking with Full Vision in the Lighted Room (L), and in the Dark Room Wearing a Blindfold (D)

	L-Marker	L-IMU	D-Marker	D-IMU
A.
		Vertical displacement (cm)
S4	2.4 ± 0.2	2.8 ± 0.3	3.2 ± 0.3	3.6 ± 0.4
S6	4.0 ± 0.3	4.5 ± 0.5
S10	3.5 ± 0.3	3.9 ± 0.5	4.9 ± 0.4	5.0 ± 0.6
S12	3.3 ± 0.2	3.9 ± 0.4	5.1 ± 0.3	5.2 ± 0.4
B.
		Left foot clearance (cm)
S4	15.9 ± 0.2	15.6 ± 0.5	15.7 ± 0.4	15.7 ± 1.1
S6	16.3 ± 0.4	14.6 ± 2.3
S10	17.0 ± 0.5	16.9 ± 0.9	18.0 ± 0.3	17.7 ± 0.8
S12	18.6 ± 0.3	18.6 ± 0.6	18.5 ± 0.8	17.2 ± 1.3

Values are mean ± SD recorded during minute three.