Table 1.
Comparison of Physical Examination Characteristics and Pitch Velocity According to Compliance With the Between-Season Rest Guidelines a
| Variable | Noncompliant (n = 77) | Compliant (n = 38) | P |
|---|---|---|---|
| Right shoulder flexion, deg | 166 ± 10 | 165 ± 9 | .821 |
| Left shoulder flexion, deg | 167 ± 10 | 167 ± 8 | .860 |
| Right elbow extension, deg | 0 ± 5 | -1 ± 5 | .775 |
| Left elbow extension, deg | 0 ± 5 | -1 ± 6 | .672 |
| Right shoulder abduction strength, kg | 13 ± 5 | 17 ± 8 | .072 |
| Left shoulder abduction strength, kg | 13 ± 4 | 16 ± 7 | .075 |
| Right shoulder external rotation strength, kg | 12 ± 3 | 13 ± 4 | .541 |
| Left shoulder external rotation strength, kg | 12 ± 3 | 12 ± 4 | .256 |
| Right grip strength, kg | 37 ± 12 | 42 ± 14 | .096 |
| Left grip strength, kg | 35 ± 13 | 38 ± 14 | .300 |
| Self-reported mean fastball velocity, mph (kph) | 77 ± 6 (123 ± 9) | 74 ± 6 (119 ± 9) | .057 |
| Self-reported peak fastball velocity, mph (kph) | 80 ± 6 (128 ± 9) | 78 ± 6 (125 ± 9) | .039 |
| Directly measured mean fastball velocity, mph (kph) | 74 ± 8 (119 ± 13) | 69 ± 5 (111 ± 8) | .009 |
| Directly measured peak fastball velocity, mph (kph) | 51 ± 28 (82 ± 45) | 64 ± 15 (103 ± 24) | .609 |
a
Data are reported as mean ± SD. Boldface P values indicate statistically significant difference between groups (P < .05).