Table 2 Comparison of muscle lengths and gait parameters between patients with crouch gait and normal controls mimicking crouch gait
| Â | Cerebral palsy (crouch gait) | Control (crouch gait) | p |
|---|---|---|---|
Semimembranosus length (%) | Â | Â | Â |
 maximum | 105.2 (4.1) | 104.9 (3.6) | 0.810 |
 minimum | 95.1 (3.6) | 91.3 (4.6) | 0.005 |
 mean | 100.1 (3.7) | 98.1 (4.0) | 0.104 |
 excursion | 10.1 (2.2) | 13.7 (6.2) | 0.022 |
Psoas length (%) | Â | Â | Â |
 maximum | 98.0 (2.1) | 97.3 (3.5) | 0.456 |
 minimum | 88.8 (1.6) | 84.7 (8.0) | 0.039 |
 mean | 93.4 (1.6) | 90.6 (4.9) | 0.026 |
 excursion | 9.2 (1.7) | 12.5 (6.6) | 0.036 |
Spatio-temporal parameters | Â | Â | Â |
 Cadence (No./min) | 95.7 (13.8) | 119.7 (14.9) | <0.001 |
 Step length (cm) | 38.8 (9.0) | 45.6 (121.0) | 0.039 |
 Walking speed (cm/s) | 63.5 (16.0) | 92.8 (19.8) | <0.001 |
Kinematic parameters (°) |  |  |  |
 Maximum hip flexion in stance | 44.1 (7.1) | 50.1 (12.2) | 0.066 |
 Minimum hip flexion | 7.3 (11.6) | 10.4 15.2) | 0.473 |
 Hip range of motion | 39.3 (10.9) | 41.1 (8.5) | 0.553 |
 Knee flexion at initial contact | 41.6 (13.5) | 49.6 (7.3) | 0.027 |
 Minimum knee flexion in stance | 27.6 (14.2) | 47.4 (7.3) | <0.001 |
 Knee range of motion | 34.3 (12.5) | 33.6 (5.9) | 0.836 |