Effects of Qigong Therapy on the Anaerobic Threshold in Patients with Stable Coronary Artery Disease: A Randomized Controlled Trial
Table 2
Changes of anaerobic threshold parameters in the cardiopulmonary exercise test in the QG training group, and the CON group.
The QG group
The CON group
Z
Baseline
Week 12
Baseline
Week 12
Anaerobic threshold indicator appeared
Time (min)
7.37 ± 3.71
7.75 ± 4.50
8.76 ± 3.84
8.62 ± 3.71
−0.762
>0.05
Speed (Kmh × 10)
34.93 ± 8.34
37.62 ± 10.79
36.79 ± 11.90
37.66 ± 10.04
−0.568
>0.05
Grade (%)
10.38 ± 2.73
11.09 ± 2.89
11.58 ± 1.92
11.38 ± 2.30
−0.20
>0.05
Anaerobic threshold response
VO2 (ml/min)
1155.13 ± 432.89
1209.39 ± 461.46
1104.38 ± 488.03
1068.10 ± 292.02#
−2.12
<0.05
VO2/Kg (ml/min/kg)
16.77 ± 6.60
19.75 ± 6.40
17.10 ± 6.53
16.56 ± 4.45#
−2.27
<0.05
METS
4.8 ± 1.96
5.14 ± 1.82
4.86 ± 1.85
4.0 ± 1.54#
−2.19
<0.05
Anaerobic threshold cardiovascular response
HR (bpm)
104.37 ± 18.44
106.57 ± 21.99
109.39 ± 20.31
108.38 ± 25.63
−0.335
>0.05
VO2/HR (ml/bpm)
9.97 ± 3.47
10.79 ± 3.35
9.76 ± 3.54
9.17 ± 2.25#
−2.47
<0.05
SV
69.70 ± 19.71
73.68 ± 21.04
67.48 ± 18.18
70.90 ± 24.41
−0.70
>0.05
Anaerobic threshold cardiovascular gas exchange
VE/VO2
29.47 ± 4.63
29.93 ± 3.24
28.93 ± 3.54
28.45 ± 4.09
−1.55
>0.05
VE/VCO2
31.63 ± 5.68
31.39 ± 3.64
30.72 ± 4.25
29.93 ± 3.70
−1.47
>0.05
Data are expressed as mean ± SD. QG, qigong group; HR, heart rate; METS, metabolic equivalents; SV, stroke volume; VE/VCO2, ventilatory equivalents for carbon dioxide; VE/VO2, ventilatory equivalents for oxygen. versus#. #The data in the table.
