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Z1 Z2 Z3 Fz (% body weight) X7 X9 Y10 A B C Figure 1. gait cycle (%) gait cycle (%) gait cycle (%) Fx (% body weight) Fy (% body weight)

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Step length (cm) Stride width (cm) Stride length (cm) Cadence (steps/minute) Velocity (m/minute) Stance phase (% of gait cycle) Single stance phase (% of gait cycle) Z1 (% of body weight) Z2 (% of body weight) Z3 (% of body weight) X7 (% of body weight) X9 (% of body weight) Y10 (% of body weight) Hip motion b (degree) Knee motion b (degree) Ankle motion b (degree) Gait parameters1st day2nd day3rd dayAverage in 3 days p a Means and standard deviations （ SD) of gait parameters measured in the three days Table 1. b Differences of range of motion between peak extension (plantarflexion) and peak flexion (dorsiflexion) angle during gait cycle. a Resulted in one-way analysis of variance with repeated measures in the three days. * P < (4.38) (4.76) (5.95) (4.88) * (1.74) (1.75) (1.65) (1.63) (7.82) (8.98) (9.25) (8.47) * (10.0) (11.2) (10.7) (10.5) (1.09) (1.23) (1.03) (1.01) (8.48) (9.12) (11.5) (9.48) * (3.61) (3.12) (3.92) (3.19) * 6.62 (1.15) 6.90 (1.38) 6.99 (1.29) 6.83 (1.21) * (2.67) (2.55) (3.07) (2.58) * (3.26) (3.21) (3.26) (3.06) * (5.16) (5.40) (6.57) (5.55) * (1.11) (1.17) (1.08) (0.99) (5.36) (5.07) (6.47) (5.19) * (5.80) (5.56) (6.89) (5.78) * (4.98) (4.67) (5.48) (4.56) (6.27) (5.76) (6.82) (5.63) mean (SD)

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Step length Stride width Stride length Cadence Velocity Stance phase Single stance phase Z1 Z2 Z3 X7 X9 Y10 Hip motion Knee motion Ankle motion Gait parameters ICC （ 1 ， 1 ） a CV b Intraclass correlation coefficient （ 1 ， 1 ） and coefficient of variation before compensation procedures. Table 2. a Intracalss correlation coefficient in the three days. b Coefficient of variation in the three days ( ) (0.92 – 13.0) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) mean (range)

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Step length Stride width Stride length Cadence Velocity Stance phase Single stance phase Z1 Z2 Z3 X7 X9 Y10 Hip motion Knee motion Ankle motion Gait parameters Peason's correlation coefficient a Correlation among stride length, cadence, velocity and other gait parameters Table 3. Stride length CadenceVelocity 0.67 * * (1.00) * (1.00) 0.78 * 0.96 * * * 0.58 * * * 0.65 * * *-0.56 * * * 0.69 * 0.72 * 0.78 * (1.00) a Calculated for the three recording sessions. * P<

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Step length Stride width Stride length Cadence Stance phase Single stance phase Z1 Z2 Z3 X7 X9 Y10 Hip motion Knee motion Ankle motion Gait parametersRegression equation a vel P b ICC (1, 1)CV Intraclass correlation coefficient (1, 1) and coefficient of variation of each parameters when compensated by the velocity Table 4. a Calculated for the three recording sessions by least squares method. b Resulted in one way analysis of variance with repeated measures after compensation. ICCs (1, 1), intraclass correlation coefficient; CV, coefficient of variation; vel, velocity value (m/minute) mean (range) ( ) vel (0.83 – 17.3) vel (0.22 – 1.80) vel (0.34 – 2.15) vel (0.06 – 1.67) vel (0.19 – 4.10) vel (0.14 – 4.44) vel (0.40 – 7.24) vel (0.38 – 2.58) vel (0.16 – 9.54) vel (0.27 – 10.5) vel (1.68 – 11.2) vel (1.62 – 7.89) vel (0.46 – 8.23) vel (0.07 – 22.0)

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