Table 2.
Intraclass correlation coefficient (ICC) for interrater (1:1) and intrarater reliability measures..
| Measurements | Total trials, n | Telehealth measures, mean (SD) | In-person measures, mean (SD) | ICCa (95% CI) | ICCb (95% CI) |
| 5-Time Sit to Stand (s) | 58 | 10.46 (2.10) | 9.25 (2.09) | 0.84 (0.75-0.90) | 0.67 (0.42-0.83) |
| Timed Up and Go (s) | 60 | 7.61 (1.13) | 6.63 (1.07) | 0.64 (0.47-0.77) | 0.84 (0.70-0.92) |
| 3-Meter Walk Test (s) | 59 | 3.48 (0.41) | 2.23 (0.40) | –0.46 (–0.64-0.24) | 0.89 (0.79-0.95) |
| 4-Meter Walk Test (s) | 58 | 3.48 (0.54) | 2.48 (0.45) | 0.76 (0.62-0.85) | 0.86 (0.72-0.93) |
| Functional Reach Test (cm) | 86 | 36.37 (8.22) | 36.17 (8.24) | 0.99 (0.98-0.99) | 0.86 (0.76-0.92) |
| Grip Strength (kg) | 180 | 38.47 (9.95) | 38.43 (0.97) | 0.99 (0.99-0.99) | 0.91 (0.42-0.96) |
| Static Balance Test (points) | 30 | 12 (0) | 12 (0) | NAc | NA |
aInterrater reliability of telehealth (Zoom) versus in-person trials.
bIntrarater reliability between telehealth trials.
cN/A: not applicable.