Group

Before the treatment

After treatment

t

P

The control group (n = 40)

30.35 ± 5.78

38.92 ± 5.26

−18.59

0.000

The treatment group (n = 40)

28.72 ± 4.79

43.32 ± 5.47

−15.98

0.000

t

1.36

−3.664

P

0.175

0.000