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

Table 2

Mean (95% CI) of gait parameters of younger and older adults under different walking paces (N = 56).

Gait parameters	Younger (N = 28)	Older (N = 28)
Gait speed (m/s)
Slow	1.01 (0.93–1.09)	0.97 (0.89–1.05)
Normal	1.34 (1.26–1.41)	1.19 (1.12–1.27)
Fast	1.79 (1.70–1.89)	1.46 (1.36–1.55)
Stride frequency (Hz)
Slow	0.81 (0.78–0.85)	0.84 (0.81–0.88)
Normal	0.97 (0.94–1.00)	0.93 (0.91–0.96)
Fast	1.15 (1.11–1.20)	1.02 (0.97–1.06)
Stride length (m)
Slow	1.24 (1.17–1.31)	1.14 (1.08–1.21)
Normal	1.40 (1.33–1.47)	1.29 (1.22–1.35)
Fast	1.57 (1.49–1.65)	1.44 (1.37–1.52)
Stride regularity
Slow	0.79 (0.75–0.83)	0.81 (0.77–0.85)
Normal	0.81 (0.78–0.83)	0.82 (0.80–0.85)
Fast	0.79 (0.76–0.82)	0.80 (0.77–0.83)
Stride time variability (%)
Slow	4.92 (4.10–5.74)	5.45 (4.63–6.27)
Normal	4.31 (3.49–5.13)	4.36 (3.54–5.18)
Fast	4.54 (3.90–5.20)	5.00 (4.36–5.65)
AP RMS (g)
Slow	0.36 (0.30–0.41)	0.20 (0.15–0.26)
Normal	0.46 (0.39–0.53)	0.24 (0.17–0.31)
Fast	1.57 (1.49–1.65)	1.44 (1.37–1.52)
ML RMS (g)
Slow	0.24 (0.21–0.26)	0.22 (0.20–0.24)
Normal	0.36 (0.31–0.40)	0.26 (0.21–0.31)
Fast	0.42 (0.37–0.50)	0.31 (0.26–0.36)
VT RMS (g)
Slow	0.30 (0.24–0.36)	0.41 (0.36–0.47)
Normal	0.44 (0.36–0.51)	0.51 (0.44–0.58)
Fast	0.58 (0.50–0.66)	0.61 (0.53–0.68)

Note. RMS, root mean square; AP, anteroposterior; ML, mediolateral; VT, vertical.