Table 2 Comparison between the mean values of muscle thickness and pennation angle (relaxation and contraction) in the two examined sides and in each side
From: Correlation between age, muscle architecture, and muscle strength in children with Erb’s palsy
Nonaffected (n = 40) (mean ± SD) | Affected (n = 40) (mean ± SD) | P value | |
|---|---|---|---|
Muscle thickness (cm) | |||
Relaxation | 1.15 ± 0.23 | 1.05 ± 0.23 | 0.043 (S) |
Contraction | 1.29 ± 0.24 | 1.14 ± 0.23 | 0.006 (S) |
P value | 0.001 (S) | 0.001 (S) | |
Pennation angle (degrees) | |||
Relaxation | 13.55 ± 2.21 | 12.72 ± 2.03 | 0.085 (NS) |
Contraction | 15.12 ± 2.24 | 13.62 ± 2.23 | 0.004 (S) |
P value | 0.001 (S) | 0.001 (S) | |