Mobility assessment in people with Alzheimer disease using smartphone sensors

Table 2 Descriptive and comparison of the mobility variables between groups and conditions

		CDR1G	CDR2G	CG	Group main effect		Conditions main effect
		CDR1G	CDR2G	CG	F (1,59)	p	F (1,59)	p
MLDisp (mm)	ST test	7.76 (4.29)	7.39 (3.36)	8.34 (4.91)	0.27	0.766	23.54	< 0.001
MLDisp (mm)	DT test	12.01 (6.47)^a	14.62 (8.96)^a	13.46 (10.09)^a
APDisp (mm)	ST test	23.76 (19.55)	24.78 (10.89)	20.62 (10.58)	4.01	0.023	8.62	0.005
APDisp (mm)	DT test	27.81 (16.66)	39.59 (21.15)^ab	23.46 (11.01)
MLrange (mm)	ST test	57.53 (21.97)	56.37 (19.8)	51.59 (17.75)	1.20	0.307	4.66	0.035
MLrange (mm)	DT test	66.66 (28.5)^a	57.96 (21.98)	52.75 (18.31)
Vrange (mm)	ST test	16.23 (5.87)^b	17.19 (6.31)	20.97 (5.17)	2.16	0.124	0.47	0.493
Vrange (mm)	DT test	16.65 (6.18)	17.77 (6.8)	18.88 (4.75)^a
PStand (W)	ST test	159.39 (51.22)^b	155.41 (40.75)^b	195.43 (43.6)	5.46	0.007	0.00	0.972
PStand (W)	DT test	161.26 (58.14)	155.94 (35.58)^b	192.37 (57.84)
PTurnSit (W)	ST test	55.56 (22.23)^b	48.19 (11.91)^b	76.58 (19.37)	18.75	< 0.001	1.07	0.305
PTurnSit (W)	DT test	50.68 (18.09)^b	51 (18.53)^b	87.53 (35)^a
Time (s)	ST test	21.18 (4.27)^b	21.78 (3.92)^b	15.99 (2.53)	17.02	< 0.001	3.67	0.060
Time (s)	DT test	22.41 (3.35)^b	22.01 (4.83)^b	16.91 (3.77)
Reaction time (s)	ST test	1.89 (0.83)^b	1.73 (0.74)^b	1.07 (0.24)	1.89	0.161	5.39	0.024
Reaction time (s)	DT test	1.93 (0.73)	1.93 (0.9)	1.89 (1.7)^a

Data are expressed as mean (SD)
CDR1G Group of people with Alzheimer classified as stage 1 by the Clinical Dementia Rating, CDRG Group of people with Alzheimer classified as stage 2 by the Clinical Dementia Rating, ST Single task, DT Dual task, MLDisp Medial-lateral displacement, APDisp Anterior-posterior displacement, MLrange Medial-lateral range, Vrange Vertical range, PStand Sit-to-stand power, PTurnSit Turn-to-sit power
^asignificant differences with the Single-task test
^bsignificant differences with the control group (CG)
Bold type indicates a significant main effect of group or conditions (p < 0.05)

ISSN: 1743-0003