Table 3.
Isokinetic evaluation
| Variable | Normal values | MR | SR | P value* |
|---|---|---|---|---|
| Peak torque extensor angle (º) | 60º | 63.5 (6.5) | 63.1 (5.8) | 0.804 |
| Peak torque flexor angle (º) | 60º | 54.3 (11.4) | 45 (8.7) | 0.001 |
| Weight extensor peak torque (%) | 80% | 69.1 (14.4) | 77.2 (16.1) | 0.045 |
| Weight flexor peak torque (%) | 80% | 48.7 (9.6) | 40.3 (7.9) | 0.001 |
| Work extensor peak torque (%) | 80% | 68.2 (26.7) | 68.5 (19.5) | 0.961 |
| Work flexor peak torque (%) | 80% | 41.2 (15.1) | 35.1 (2.8) | 0.92 |
| Flexion/extension ratio | 0.5–0.8 [16] | 0.7 (0.1) | 0.5 (0.08) | 0.000 |
Values are expressed as mean, with SD in parentheses; *Student’s t test between MR and SR; MR = patients receiving the multiradius design; SR = patients receiving the single-radius design.