Table 3. Descriptive and reliability statistics during (a) walking and (b) running using three one-way passes over the ZenoTM Walkway at T1 and T2. Symbols indicate excellent, good, or moderate reliability.
T1 Mean | T2 Mean | SDpooled | ICC3,1 (95% CI) | SEM | MDC (95%) | |
---|---|---|---|---|---|---|
Stride Length (cm) | 156.54 | 156.79 | 13.37 | 0.939 (0.856-0.975)* | 3.30 | 9.15 |
Stride Width (cm) | 9.46 | 9.86 | 2.22 | 0.732 (0.456-0.881)‡ | 1.15 | 3.18 |
Step Time (sec.) | 0.52 | 0.52 | 0.03 | 0.929 (0.832-0.970)* | 0.01 | 0.02 |
Step Length (cm) | 78.16 | 78.40 | 6.97 | 0.908 (0.787-0.961)* | 2.11 | 5.86 |
Stride Time (sec.) | 1.04 | 1.04 | 0.06 | 0.925 (0.824-0.969)* | 0.02 | 0.04 |
Stance Time (sec.) | 0.65 | 0.65 | 0.04 | 0.920 (0.815-0.966)* | 0.01 | 0.03 |
Swing Time (sec.) | 0.39 | 0.39 | 0.02 | 0.861 (0.688-0.941)† | 0.01 | 0.02 |
% Stance (% gait cycle) | 62.27 | 62.15 | 1.25 | 0.755 (0.489-0.893)† | 0.62 | 1.72 |
% Swing (% gait cycle) | 37.74 | 37.88 | 1.24 | 0.766 (0.511-0.897)† | 0.60 | 1.67 |
Single Support Time (sec.) | 0.40 | 0.39 | 0.02 | 0.850 (0.670-0.936)† | 0.01 | 0.02 |
Double Support Time (sec.) | 0.25 | 0.25 | 0.03 | 0.874 (0.715-0.947)† | 0.01 | 0.03 |
Single Support (% gait cycle) | 38.03 | 37.78 | 1.28 | 0.796 (0.568-0.911)† | 0.58 | 1.61 |
Double Support (% gait cycle) | 24.30 | 24.37 | 2.39 | 0.809 (0.586-0.918)† | 1.05 | 2.90 |
Integrated Pressure (p x sec.) | 95.98 | 95.74 | 19.31 | 0.982 (0.957-0.993)* | 2.59 | 7.18 |
Toe Angle (degrees) | 3.60 | 3.69 | 3.44 | 0.923 (0.820-0.968)* | 0.95 | 2.65 |
Speed (cm/sec) | 150.77 | 151.66 | 16.98 | 0.928 (0.832-0.970)* | 4.56 | 12.63 |
Cadence (steps/min) | 115.47 | 115.87 | 6.07 | 0.904 (0.780-0.960* | 1.88 | 5.21 |
T1, baseline timepoint; T2, follow-up timepoint; SDpooled , pooled standard deviation; ICC, intraclass correlation coefficient; CI, Confidence Interval; SEM, standard error of the mean; MDC, minimal detectable change; cm, centimeters; sec, seconds; %, percentage; p x sec, pressure times seconds; min, minute. *Excellent, †Good, ‡Moderate.31