Outcome

measures

Stretching

Tai Chi

p value

Before

After

Before

After

Treatment

(main effect)

Time

(main effect)

LF/HF ratio

1.10 ± 0.41

1.18 ± 0.62

1.24 ± 0.41

1.03 ± 0.41

0.959

0.184

Attention (%)

47.15 ± 8.69

46.67 ± 8.51

48.03 ± 10.24

48.49 ± 7.55

0.708

0.892

Meditation (%)

53.92 ± 7.40

53.34 ± 8.75

54.80 ± 7.81

51.66 ± 9.03

0.777

0.329

Distance (cm)

4.01 ± 3.27

4.49 ± 3.69

5.58 ± 3.37

4.49 ± 2.73

0.386

0.030*