Table 3 Mean TrA and multifidus thicknesses before and after treatment in groups 1 and 2:.

Right TrA thickness (cm.)

Group 1

0.32 ± 0.08

0.44 ± 0.07

−0.12

−0.13: −0.10

37.5

0.001

Group 2

0.33 ± 0.09

0.36 ± 0.10

−0.03

−0.05: −0.02

9.09

0.001

MD

−0.01

0.08

95% CI

−0.06: 0.04

0.02: 0.12

p = 0.73

p = 0.004

ηπ²

0.16

Left TrA thickness (cm.)

Group 1

0.33 ± 0.07

0.42 ± 0.09

−0.09

−0.11: −0.08

27.27

0.001

Group 2

0.32 ± 0.09

0.35 ± 0.10

−0.03

−0.05: −0.02

9.37

0.001

MD

0.01

0.07

95% CI

−0.04: 0.05

0.02: 0.12

p = 0.76

p = 0.01

ηπ²

0.13

Right multifidus thickness (cm.)

Group 1

2.02 ± 0.41

2.48 ± 0.43

−0.46

−0.51: −0.42

22.77

0.001

Group 2

2.03 ± 0.52

2.17 ± 0.55

−0.14

−0.18: −0.10

6.9

0.001

MD

−0.01

0.31

95% CI

−0.28: 0.25

0.03: 0.59

p = 0.93

p = 0.03

ηπ²

0.1

Left multifidus thickness (cm.)

Group 1

1.98 ± 0.43

2.047 ± 0.47

−0.49

−0.54: −0.45

24.75

0.001

Group 2

2.08 ± 0.56

2.16 ± 0.58

−0.08

−0.13: −0.03

3.85

0.001

MD

−0.1

0.31

95% CI

−0.38: 0.19

0.02: 0.62

p = 0.49

p = 0.03

ηπ²

0.09