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Table 3 Impact of Tai Chi practice on cerebrovascular hemodynamics

From: Tai Chi exercise improves age‐associated decline in cerebrovascular function: a cross‐sectional study

 

Young (n = 102)

Older (n = 168)

Tai Chi (n = 168)

P value

CVHI Score

92.25 (86.63–97)

86.63 (72.25–95)

91 (81.25–98.31)

0.002

Qmean (cm/s)

9.55 (8.42–11.2)

9.18 (8.48–10.31)

9.6 (8.73–10.39)

0.151

Vmean (cm/s)

22.72 (21.15–24.5)

17.58 (15.87–19.56)

18.35 (16.86–20.62)

0.014

Vmax (cm/s)

49.61 (45.91–53.51)

36.59 (33.23–39.91)

38.23 (33.92–41.43)

0.04

Vmin (cm/s)

11.52 (10.33–12.4)

8.27 (7.38–9.15)

8.56 (7.97–10.04)

< 0.001

Wv (m/s)

9.97 (7.99–12.44)

19.87 (15.5–23.96)

18.04 (14.19–22.24)

0.022

Zcv (kPa·s/m)

10.46 (8.4–13.06)

20.87 (16.28–25.16)

18.94 (14.9–23.36)

0.021

DI

0.96 (0.77–1.2)

0.53 (0.43–0.66)

0.54 (0.44–0.66)

0.606

Rv (kPa·s/m)

49.52 (44.18–56.78)

75.12 (64.4–90.8)

71.56 (63.69–81.15)

0.044

DR (kPa·s/m)

27.03 (23.71–31.71)

45.83 (34.88–54.69)

42.57 (34.34–52.45)

0.144

CP (kPa·s/m)

5.35 (4.14–6.27)

5.92 (4.51–7.05)

5.85 (4.46–6.91)

0.876

DP (kPa)

3.19 (2.72–3.82)

3.68 (2.94–4.49)

3.73 (3.05–4.48)

0.515

  1. Data are median (25th -75th ). Variables are analyzed with Mann-Whitney U test for comparisons. P < 0.05 is considered statistically significant for two-tailed tests
  2. P values are calculated by comparing older adults control group with the Tai Chi group. CVHI cerebral vascular hemodynamics indices; Qmean mean blood flow rate; Vmean mean blood flow velocity; Vmax maximum blood flow velocity; Vmin minimum blood flow velocity; Wv pulse wave velocity; Zcv characteristic impedance; DI dilatability; Rv resistance vascular; DR dynamic resistance; CP critical pressure; DP diastolic pressure and critical pressure difference