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Table 4 Muscle activity pre and post-test for both groups during the push-off phase (% maximum voluntary isometric contraction)

From: Long-term training on sand changes lower limb muscle activities during running in runners with over-pronated feet

Muscles

Control

∆%

Intervention

∆%

Sig. (Effect size)

Pre-test

Post-test

95% CI

Pre-test

Post-test

95% CI

Time

Group

Group x Time

TA

17.13 ± 9.14

16.36 ± 8.27

− 1.73,3.28

− 3.09

17.17 ± 7.69

17.74 ± 7.39

− 3.34,2.19

3.31

0.915(0.000)

0.708(0.090)

0.465(0.191)

Gas-M

54.85 ± 16.04

55.22 ± 20.45

− 6.85,6.12

0.67

54.50 ± 16.95

66.09 ± 19.47

− 20.49,− 2.69

21.26

0.030(0.582)*

0.182(0.358)

0.041(0.549)*

VL

25.73 ± 8.59

25.39 ± 10.65

− 3.48,4.16

− 1.32

26.45 ± 9.88

27.03 ± 9.71

− 5.45,4.31

2.19

0.939(0.000)

0.559(0.155)

0.764(0.090)

VM

19.64 ± 5.77

19.41 ± 8.07

− 3.02,3.49

− 1.17

20.07 ± 6.41

20.93 ± 8.47

− 4.04,2.32

4.28

0.779(0.063)

0.520(0.168)

0.625(0.127)

RF

20.35 ± 5.77

21.19 ± 8.96

− 4.16,2.48

4.12

20.92 ± 5.37

20.86 ± 5.08

− 2.67,2.79

− 0.28

0.712(0.090)

0.927(0.000)

0.672(0.110)

BF

19.14 ± 7.93

19.37 ± 8.80

− 3.82,3.37

1.20

19.98 ± 7.28

19.03 ± 7.01

− 1.53,3.45

− 4.75

0.733(0.090)

0.855(0.000)

0.583(0.142)

ST

11.84 ± 5.54

11.49 ± 6.11

− 2.46,3.16

− 2.95

11.72 ± 4.73

12.32 ± 6.82

− 3.75,2.54

5.11

0.901(0.000)

0.749(0.090)

0.645(0.127)

Glut-M

24.59 ± 14.12

24.31 ± 11.46

− 2.45,3.01

− 1.13

24.57 ± 11.74

26.85 ± 11.60

− 6.10,1.54

9.27

0.388(0.230)

0.671(0.110)

0.270(0.293)

  1. PF pronated feet, TA tibialis anterior, Gas-M gastrocnemius medialis, BF biceps femoris, ST semitendinosus, VL vastus lateralis, VM vastus medialis, RF rectus femoris, Glut-M gluteus medius, CI confidence interval, Sig. Significant level
  2. * symbol indicate significant difference