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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