Group

Before the treatment

After treatment

t

P

The control group (n = 40)

32.32 ± 9.42

40.55 ± 11.07

−7.12

0.000

The treatment group (n = 40)

30.77 ± 8.17

47.75 ± 7.86

−18.45

0.000

t

0.78

−3.35

P

0.43

0.001