Table 4. Inter-rater reliability and measurement error statistics.
| ICC (95% CI) |
SEM, % (95% CI) |
||
|---|---|---|---|
| 10-m walking time (sec) | |||
| Comfortable speed | 0.97 (0.92–0.99) | 1.21 (0.92–1.80) | |
| Maximum speed | 0.98 (0.93–0.99) | 1.09 (0.82–1.61) | |
| Gait cadence (steps/min) | |||
| Comfortable speed | 0.97 (0.92–0.99) | 1.32 (1.00–1.95) | |
| Maximum speed | 0.99 (0.97–1.00) | 0.91 (0.69–1.33) | |
| Peak absolute value of acceleration vectors (m/sec2) | |||
| Comfortable speed | 0.98 (0.97–0.99) | 1.04 (0.85–1.35) | |
| Maximum speed | 0.87 (0.78–0.93) | 1.26 (1.02–1.62) | |
ICC: intraclass correlation coefficient; 95% CI: 95% confidence interval; SEM: standard error of measurement