Table 7. Summary for the inter-rater reliability analysis.
| Assessment | Spearman correlation, ICC, Bland-Altman analysis |
|---|---|
| ROM | Spearman: aROM: Shoulder flexion/extension (0.95/0.85); lateral shoulder ab-/adduction (0.83/0.96); horizontal shoulder ab-/adduction (0.78/0.83); shoulder internal rotation (0.87); supination (0.92); wrist flexion/extension (0.72/0.85). pROM: Lateral shoulder adduction (0.98); shoulder extension (0.92); horizontal shoulder ab-/adduction (0.77/0.90); internal rotation (0.80); wrist flexion (0.67). |
| Bland-Altman: aROM: No significant differences; pROM: Shoulder extension (p = 0.047), internal-/external rotation (p = 0.033/p = 0.028). | |
| WORKSPACE | Spearman: Workspace levels (between 0.75* and 1.0**); cubic volume (0.77*). |
| Bland-Altman: Workspace levels downwards (p = 0.035); cubic volume (p = 0.025). | |
| QOM | Spearman: Number of peaks to start: 0.71*. |
| Bland-Altman: No significant difference between testers. | |
| STRENGTH a | ICC: Between 0.80** and 0.98** (except for supination joint torque: 0.38). |
| Bland-Altman: Wrist extension (p = 0.01). | |
| RPM | Spearman: Shoulder flexion at speed 30°/s and 60°/s; Shoulder internal rotation at 30°/s. |
| Bland-Altman: Elbow flexion at 60°/s (p = 0.019). |
The numbers show the significant Spearman correlation coefficients, the significant ICC values and the significant differences from 0 in the t-test for the Bland-Altman analysis.
* = p<0.05.
** = p<0.01.
aData of testers 1 and 2 were normally distributed for STRENGTH.