Table 2.
Accuracy, repeatability and thresholds for hypomobility (HT) and minimal detectable change (MDC) in IV-RoM in healthy volunteers
| |
Flexion |
Extension |
||
|---|---|---|---|---|
| AccuracyRMS error ( o ) repeatability | In plane 0.21 intra-observer | Out of plane 0.50 inter-observer | In plane 0.34 intra-observer | Out of plane 0.40 inter-observer |
| Agreement (SEM) |
|
|
|
|
| C1-2 |
0.8 |
0.8 |
1.1 |
0.4 |
| C2-3 |
0.3 |
0.4 |
0.8 |
0.7 |
| C3-4 |
0.5 |
0.3 |
1.0 |
1.0 |
| C4-5 |
0.6 |
0.5 |
0.8 |
0.8 |
| C5-6 |
0.5 |
0.3 |
1.1 |
1.0 |
| Reliability (ICC, 95% CI) |
* |
μ |
* |
μ |
| C1-2 |
0.97 (0.89-0.99) |
0.96 (0.82-0.99) |
0.90 (0.64-0.97) |
0.97 (0.88-0.99) |
| C2-3 |
0.97 (0.90-0.99) |
0.97 (0.90-0.99) |
0.95 (0.80-0.99) |
0.95 (0.71-0.98) |
| C3-4 |
0.99 (0.98-0.99) |
0.99 (0.98-0.99) |
0.92 (0.71-0.98) |
0.97 (0.87-0.99) |
| C4-5 |
0.97 (0.89-0.99) |
0.97 (0.89-0.99) |
0.97 (0.89-0.99) |
0.97 (0.85-0.99) |
| C5-6 |
0.99 (0.97-0.99) |
0.99 (0.97-0.99) |
0.97 (0.85-0.99) |
0.97 (0.85-0.98) |
| Thresholds (o) |
HT |
MDC |
HT |
MDC |
| C1-2 |
1.3 |
3.8 |
1.1 |
4.4 |
| C2-3 |
0.8 |
3.0 |
0.9 |
4.5 |
| C3-4 |
1.8 |
3.9 |
2.3 |
6.4 |
| C4-5 |
2.3 |
3.4 |
3.5 |
4.7 |
| C5-6 | 1.1 | 3.4 | 1.3 | 5.0 |
* = ICC(3C,1), μ = ICC (2C,1), two-way single measure mixed effects model (consistency).