Table 5 Responsiveness of psoas length and gait parameters in patients with spastic diplegia

Pelvic tilt (°)

   maximum

21.9 (4.9)

18.8 (4.9)

0.008

   minimum

12.6 (5.9)

12.9 (5.0)

0.897

   range

9.4 (3.5)

5.9 (2.1)

<0.001

   mean

17.5 (5.1)

15.9 (4.9)

0.126

Max hip extension in stance (°)

-0.5 (6.1)

4.6 (7.5)

0.001

Max hip flexion in late swing (°)

50.4 (5.9)

42.9 (5.1)

<0.001

Hip rotation (°)

   maximum

12.8 (8.2)

10.0 (4.9)

0.107

   minimum

0.2 (9.2)

-5.2 (7.0)

0.016

   range

12.6 (4.1)

15.3 (4.6)

0.015

   mean

6.3 (8.9)

2.3 (5.8)

0.051

Psoas length (%)

   maximum

99.2 (1.3)

100.3 (1.2)

<0.001

   minimum

87.5 (1.4)

89.3 (1.6)

<0.001

   range

11.7 (1.5)

11.1 (1.9)

0.158

   mean

93.6 (1.3)

95.0 (1.2)

<0.001

TOC (%)

28.2 (11.5)

24.6 (12.3)

0.173

H3 (W/kg)

0.3 (0.4)

0.5 (2.0)

0.627

HFI

5.9 (1.4)

3.8 (2.0)

<0.001

Cadence (No./min)

101.2 (14.2)

103.0 (16.6)

0.251

Step length (cm)

35.3 (6.2)

41.1 (6.2)

<0.001

Walking speed (cm/s)

59.9 (13.5)

71.1 (15.8)

<0.001