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. 2014 Feb 6;26(1):81–85. doi: 10.1589/jpts.26.81

Table 1. Mean (SD) of spatiotemporal gait parameters of subjects and concurrent validity measured with GAITRite and OPTOGait.

Gait Parameters GAITRite OPTOGait ICC (2,1) 95%CI 95% LOA CV(%)
Speed (m/s) 1.16 (0.18) 1.18 (0.17) *** 0.993 (0.988–0.996) −0.062–0.022 1.37
Cadence (steps/min) 103.84 (10.17) 105.08 (10.10) *** 0.988 (0.980–0.993) –4.43–1.86 1.00
Step length Lt. (cm) 67.56 (5.11) 67.77 (5.18) * 0.991 (0.984–0.994) –1.587–1.168 0.56
Step length Rt. (cm) 66.65 (6.01) 67.07 (6.16) *** 0.996 (0.993–0.997) –1.712–1.135 0.61
Step time Lt. (s) 0.58 (0.06) 0.58 (0.06) 0.997 (0.995–0.998) –0.010–0.009 0.49
Step time Rt. (s) 0.58 (0.06) 0.58 (0.05) 0.995 (0.992–0.997) –0.013–0.009 0.52
Stride length Lt. (cm) 134.05 (10.55) 134.40 (10.65) *** 0.998 (0.997–0.999) –1.665–0.979 0.32
Stride length Rt. (cm) 134.59 (11.19) 134.94 (11.30) *** 0.998 (0.997–0.999) –1.672–0.981 0.32
SLS Lt. (s) 0.43 (0.04) 0.41 (0.04) *** 0.973 (0.956–0.984) 0.005–0.041 3.98
SLS Rt. (s) 0.43 (0.04) 0.41 (0.04) *** 0.969 (0.948–0.981) 0.006–0.042 4.07
DLS (s) 0.27 (0.05) 0.31 (0.06) *** 0.963 (0.939–0.978) –0.074–0.019 11.30
Stance phase Lt. (s) 0.72 (0.08) 0.75 (0.08) *** 0.929 (0.883–0.957) –0.091–0.027 3.60
Stance phase Rt. (s) 0.72 (0.08) 0.75 (0.09) *** 0.953 (0.922–0.971) –0.084–0.018 3.36
Swing phase Lt. (s) 0.43 (0.04) 0.41 (0.04) *** 0.969 (0.948–0.981) 0.006–0.042 4.07
Swing phase Rt. (s) 0.43 (0.04) 0.41 (0.04) *** 0.973 (0.956–0.984) 0.005–0.041 3.98

ICC, intra-class correlation coefficient; LOA, limits of agreement; CVME, coefficients of variation of method error; SLS, Single Limb Support; DLS, Double Limb Support. Significant difference between the two measuring instruments (*, p < 0.05; ***, p ≤ 0.001)