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Internal rotation range of motion.a
| Dominant Shoulder (mean ± SD) | Nondominant Shoulder (mean ± SD) | Comparison Dominant – Nondominant P Value | |
|---|---|---|---|
| No stabilization | 52.3° ± 8.4° | 65.2° ± 8.4° | < .001 |
| Scapular stabilization | 43.9° ± 8.1° | 53.5° ± 9.1° | < .001 |
| Humeral head stabilization | 35.8° ± 8.7° | 45.3° ± 8.4° | < .001 |
A statistically significant difference was also observed between each method of stabilization for the dominant and nondominant shoulders (P < .001). SD, standard deviation.
