Shoulder ultrasound evaluations among tennis players with and without dyskinesia
| Variables | With dyskinesia (n = 42) | Without dyskinesia (n = 64) |
| Subacromial space: reduction (0°–60° abduction), mm | ||
| Mean (SD) | 1.93 (0.83) | 1.38 (0.87) |
| Minimum/maximum | −0.3/4.1 | −0.1/3.9 |
| Comparison | p = 0.002 | |
| Subacromial space: reduction (0° to 60° abduction), % | ||
| Mean (SD) | 21.4 (0.92) | 16.1 (0.98) |
| Minimum/maximum | −2.6/39.8 | −1.2/42.4 |
| Comparison | p = 0.007 | |