Table 1.
Intra-rater reliability of the isometric shoulder muscle strength measurements performed by Examiner A using a Forcemeter. T1—Test 1; T2—Test 2 (re-test); max—maximum value; mean—mean value; SEM—standard error of measurements; MDC—minimal detectable change with 95% confidence; ICC- Intra-Class Correlation coefficient.
| Flexion | Abduction | Internal Rotation | External Rotation | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max | Mean | Max | Mean | Max | Mean | Max | Mean | |||||||||
| T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | |
| Mean [N] | 70.0 | 72.3 | 58.5 | 59.6 | 60.0 | 64.4 | 58.2 | 53.4 | 95.0 | 98.2 | 79.3 | 81.8 | 79.9 | 80.7 | 68.1 | 67.3 |
| SEM [N] | 3.5 | 3.7 | 3.1 | 3.2 | 3.0 | 5.0 | 3.4 | 2.3 | 4.5 | 4.4 | 3.6 | 3.9 | 3.9 | 3.5 | 3.2 | 2.8 |
| MDC [N] | 9.7 | 10.3 | 8.6 | 8.9 | 8.3 | 13.9 | 9.4 | 6.4 | 12.5 | 12.2 | 10.0 | 10.8 | 10.8 | 9.7 | 8.9 | 7.8 |
| ICC | 0.95 | 0.91 | 0.71 | 0.70 | 0.65 | 0.70 | 0.81 | 0.74 | ||||||||