Table 3.
Intrarater Reliability Intraclass Correlation Coefficient, Confidence Interval (95% CI), Standard Error of Measurement, And Minimum Detectable Change
| Movements | Flexion | Extension | Right lateral flexion | Left lateral flexion | Right rotation | Left rotation | |
|---|---|---|---|---|---|---|---|
| CROM | ICC | 0.881 | 0.915 | 0.939 | 0.887 | 0.485 | 0.851 |
| 95% CI | 0.688-0.952 | 0.787-0.968 | 0.843-0.976 | 0.711-0.956 | –0.285 to 0.789 | 0.067-0.921 | |
| SEM | 3.994 | 3.96 | 2.101 | 2.598 | 3.739 | 2.651 | |
| MDC | 11.07 | 10.973 | 5.821 | 7.199 | 10.36 | 7.345 | |
| Inclinometer | ICC | 0.836 | 0.678 | 0.746 | 0.843 | 0.823 | 0.533 |
| 95% CI | 0.587-0.939 | –0.32 to 0.306 | 0.318-0.893 | 0.606-0.942 | 0.529-0.927 | –0.189 to 0.817 | |
| SEM | 3.908 | 6.319 | 3.898 | 2.686 | 3.591 | 3.981 | |
| MDC | 10.829 | 17.509 | 10.801 | 7.442 | 9.95 | 11.031 | |
| iPhone | ICC | 0.906 | 0.91 | 0.93 | 0.878 | 0.656 | 0.794 |
| 95% CI | 0.763-0.964 | 0.763-0.964 | 0.825-0.974 | 0.673-0.95 | 0.113-0.873 | 0.449-0.915 | |
| SEM | 3.263 | 3.297 | 1.908 | 2.415 | 3.52 | 2.937 | |
| MDC | 9.041 | 9.135 | 5.287 | 6.691 | 9.753 | 8.138 | |
| Android | ICC | 0.89 | 0.879 | 0.903 | 0.846 | 0.517 | 0.131 |
| 95% CI | 0.708-0.955 | 0.698-0.956 | 0.756-0.963 | 0.613-0.942 | –0.27 to 0.821 | –1.423 to 0.677 | |
| SEM | 3.331 | 4.386 | 2.488 | 2.489 | 8.678 | 11.864 | |
| MDC | 9.23 | 12.153 | 6.894 | 6.897 | 24.046 | 32.875 | |
CROM, cervical range-of-motion; ICC, intraclass correlation coefficient; CI, confidence interval; SEM, standard error of measurement; MDC, minimum detectable change.