Carotid Arterial Stiffness and Hemodynamic Responses to Acute Cycling Intervention at Different Times during 12-Week Supervised Exercise Training Period
Table 1
The changes in carotid blood flow at rest and after acute cycling across 12-week training.
Variable
Condition
Week 0
Week 4
Week 8
Week 12
HR
At rest
72±7
71±7
69±6
67±6
Acute cycling
97±10
+
96±9
+
91±11
+
89±10
+
Vmax
At rest
68±11
71±12
72±11
73±10
Acute cycling
92±22
+
94±18
+
94±17
+
95±13
+
Vmean
At rest
23±5
24±5
25±6
26±4
Acute cycling
29±7
+
30±7
+
31±5
+
33±5
+
Vmin
At rest
11±4
13±5
14±5
14±3
Acute cycling
15±6
+
16±7
+
17±6
+
18±8
+
Qmax
At rest
11.64±1.78
12.02±2.17
13.76±2.29
14.49±2.41
Acute cycling
16.82±4.17
+
16.97±4.57
+
17.09±6.28
+
17.32±4.84
+
Qmean
At rest
3.22±0.53
3.36±0.67
3.51±0.69
4.08±0.78
Acute cycling
4.40±0.89
+
4.44±1.43
+
4.34±1.35
+
4.38±1.16
Qmin
At rest
0.56±1.64
0.62±2.05
0.63±1.38
0.75±1.49
Acute cycling
-1.65±1.03
+
-0.94±1.55
+
-1.01±1.58
+
-1.07±2.25
+
: significant difference from baseline at P0.05; +: significance between at rest and after acute cycling at P0.05; HR, heart rate (beats/min); Vmax, Vmean, and Vmin, maximal, mean, and minimal center-line velocity (CV, cm/s); Qmax, Qmean, and Qmin, maximal, mean, and minimal flow rate (FR, ml/s).
