| Mean (SD) | Within-subject SD (95% CI) | Within-subject coefficient of variation (95% CI) | Precision (95% CI) | Intraclass correlation coefficient (95% CI) | |
| Repeatability (n = 55) | 23.0 (6.77) | 1.05 (0.91 to 1.18) | 4.55% (3.95% to 5.15%) | 2.05 (1.78 to 2.32) | 0.98 (0.96 to 0.99) |
Mean (SD), overall mean with standard deviation; Precision, 1.96×within-subject SD.