Gait Assessment of Younger and Older Adults with Portable Motion-Sensing Methods: A User Study

Table 1

Characteristics of participants in this study (N = 56).

Variables	Younger (N = 28)	Older (N = 28)
Age, mean (SD), y	24.6 (2.7)	66.1 (5.0)	<0.001
Gender, n
Male	14	18	0.280
Female	14	10
Height, mean (SD), cm	169.7 (8.2)	160.6 (7.1)	<0.001
Weight, mean (SD), kg	61.8 (10.4)	61.4 (7.3)	0.859
BMI^a, mean (SD)	21.4 (2.6)	23.9 (3.1)	0.002
Education, n
Primary	0	16	<0.001
Junior	0	11
Senior	0	1
Undergraduate	5	0
Graduate	23	0
Smartphone owner, n
Yes	28	3	<0.001
No	0	25
Smart bracelet experience^b, n
Yes	16	0	<0.001
No	12	28
Fall history in the last year^c, n
Yes	6	8	0.537
No	22	20
Self-reported health status^d, mean (SD)	6.3 (0.9)	4.9 (1.2)	0.005
Self-reported walking ability^d, mean (SD)	6.3 (0.7)	5.6 (1.3)	0.018

Note. BMI, body mass index; SD, standard deviation. ^aCalculated as weight in kilograms divided by height in meters squared. ^bDetermined by asking the question “Do you have prior experience of using a smart bracelet?” ^cDetermined by asking the question “Did you fall unintentionally in the last year?” ^dDetermined by a seven-point Likert scale, with 1 indicating not good at all and 7 indicating very good. Significant at the 0.05 level.