Table 1.

Participant demographics.

Variables		Healthy Old Adults (HOA)	Mild Cognitive Impairment (MCI)	Alzheimer's Disease (AD)
		n = 8	n = 5	n = 2
Age (yr)		69.6 ± 1.5	70.2 ± 7.3	63.0 ± 5.7
Height (cm)		155.6 ± 5.7	151.9 ± 6.8	159.2 ± 8.9
Weight (kg)		59.9 ± 9.7	54.9 ± 7.8	52.1 ± 12.9
Education level (yr)		12.4 ± 2.7	11.0 ± 1.9	12.0 ± 1.0
Female: Male		5: 4	3: 2	1: 1
MOCA (score)		28.75 ± 1.58	21.5 ± 3.35	14.0 ± 7.07
Slow belt speed (mps)		0.41 ± 0.07	0.36 ± 0.08	0.40 ± 0
Fast belt speed (mps)		0.82 ± 0.14	0.72 ± 0.15	0.80 ± 0