Strength

Level 0

Level I

Level II

Level III

Level IV

Level V

Before treatment in group A

14

11

12

10

3

0

After treatment in group A

2

6

10

15

13

4

Comparison of before and after treatment in group A (X²)

10.71

1.77

0.23

1.33

7.44

2.34

P value

<0.01

>0.05

>0.05

>0.05

<0.01

>0.05

Before treatment in group B

14

10

12

11

3

0

After treatment in group B

1

4

7

15

17

6

Comparison of before and after treatment in group B (X²)

13.25

2.99

1.62

0.83

12.25

4.43

P value

<0.01

>0.05

>0.05

>0.05

<0.01

<0.05

Before treatment in group C

14

11

12

10

3

0

After treatment in group C

0

2

6

13

18

11

Comparison of before and after treatment in group C (X²)

16.28

7.16

2.44

0.51

13.56

12.36

P value

<0.01

<0.01

>0.05

>0.05

<0.01

<0.01

Comparison of group A with B after treatment (X²)

0.00

0.44

0.64

0.00

0.76

0.44

P value

>0.05

>0.05

>0.05

>0.05

>0.05

>0.05

Comparison of group A with C after treatment (X²)

―

1.22

1.19

0.2

1.17

3.84

P value

―

>0.05

<0.01

>0.05

>0.05

0.05

Comparison of group B with C after treatment (X²)

―

0.18

0.09

0.20

0.04

1.77

P value

―

>0.05

>0.05

>0.05

>0.05

>0.05