Table 2 Accuracy, repeatability and thresholds for hypomobility (HT) and minimal detectable change (MDC) in IV-RoM in healthy volunteers
From: Does inter-vertebral range of motion increase after spinal manipulation? A prospective cohort study
| Â | 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) | Â | Â | Â | Â |
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 |