Interobserver and intraobserver reliability for measurement of passive knee range of movement.
| Knee PROM | Interobserver Agreement | SEM | Intraobserver Agreement | SEM | ||||
|---|---|---|---|---|---|---|---|---|
| ICC (95% CI) | Mean Difference (95% CI) | 95% LoA (°) | ICC (95% CI) Mean | Difference (95% CI) | 95% LoA (°) | |||
| Flexion | 0.97 (0.92–0.99) | −2.24 (−4.36 to −0.12) | −12.29, 7.81 | 1.03 | 0.99 (0.99–0.99) | −0.14 (−0.43 to 0.70) | −5.37, 5.10 | 0.28 |
| Extension | 0.87 (0.72–0.94) | −1.00 (−2.55 to 0.55) | −8.38, 6.38 | 0.75 | 0.96 (0.94–0.98) | −0.17 (−0.61 to 0.27) | −4.23, 3.89 | 0.22 |
ICC: intraclass correlation coefficient; PROM: passive range of movement; LoA: limits of agreement; SEM: standard error of measurement.