Table 2 Intra-rater reliability for individual tasks and sum score of the testing battery
Task | Intra-rater correlation observer 1 (95% CI) | Intra-rater correlation observer 2 (95% CI) |
|---|---|---|
Lying | 0.943 (0.873–0.974) | 1.000 |
Standing up from lying | 0.957 (0.904–0.981) | 0.979 (0.952–0.991) |
Sitting | 0.668 (0.224–0.855) | 0.464 (− 089 to 0.748) |
Standing up from sitting | 0.938 (0.861–0.972) | 0.917 (0.770–0.966) |
Standing | 0.976 (0.946–0.989) | 0.933 (0.844–0.971) |
Proprioceptive positioning | 0.988 (0.974–0.995) | 0.961 (0.915–0.983) |
Start to walk from standing | 0.986 (0.970–0.994 | 0.986 (0.970–0.994) |
Walking | 0.989 (0.975–0.995) | 0.990 (0.977–0.995) |
Running | 0.984 (0.966–0.993) | 0.994 (0.987–0.997) |
Walking turns | 0.983 (0.961–0.993) | 0.978 (0.952–0.990) |
Walking stairs | 0.976 (0.948–0.989) | 0.984 (0.964–0.993) |
Total score | 0.996 (0.991–0.998) | 0.994 (0.981–0.998) |