Variable

Control Mean ± SD

HT Mean ± SD

Change (HT-C)/C × 100

p Value

The age range from 20 to 49 years

Ea (mm/s)

13.208 ± 2.47

11.34 ± 2.7

−14.09%

<0.05

E/Ea

5.72 ± 0.99

6.61 ± 1.62

15.55%

<0.05

Stiffness index

1.21 ± 0.246

1.404 ± 0.38

40%

<0.05

The age range from 50 to 80 years

Ea (mm/s)

12.045 ± 1.94

9.017 ± 2.57

−25.166%

<0.05

E/Ea

5.98 ± 1.23

8.059 ± 2.71

34.61%

<0.05

Stiffness index

1.303 ± 0.313

1.763 ± 0.69

35.38%

<0.05