Effects of High Intensity Interval versus Moderate Continuous Training on Markers of Ventilatory and Cardiac Efficiency in Coronary Heart Disease Patients
Table 2
Ventilatory results of CPX at peak and ventilatory threshold among groups.
Variable
CG ()
MIT ()
HIIT ()
Before
After
Before
After
Before
After
Interaction
Peak CPX results
VE (L/min)
48 ± 15
42 ± 16
43 ± 8
46 ± 15
47 ± 13
55 ± 16
0.09
VO2 peak (mL⋅Kg−1⋅min−1)
21.9 ± 6
18.6 ± 6
21.8 ± 6
21.9 ± 6
20.6 ± 5
24.4 ± 5
0.04
Oxygen pulse (mL/beat)
13.7 ± 4
11.7 ± 4
12.5 ± 4
12.7 ± 4
12.4 ± 4
14.2 ± 4
0.05
VE/VCO2 slope
27.4 ± 3.9
28.1 ± 3.2
27.9 ± 4.6
26.8 ± 3.3
27.6 ± 4.0
27.3 ± 4.1
0.48
OUES
1.9 ± 0.6
1.7 ± 0.6
1.9 ± 0.5
1.8 ± 0.5
1.8 ± 0.6
2.0 ± 0.6
0.16
RER
1.03 ± 0.1
1.02 ± 0.1
1.02 ± 0.1
1.01 ± 0.1
1.05 ± 0.1
1.07 ± 0.1
0.53
HR (bpm)
122 ± 26
122 ± 28
127 ± 18
128 ± 19
131 ± 25
133 ± 24
0.99
SBP (mmHg)
181 ± 26
170 ± 25
172 ± 41
157 ± 53
173 ± 21
169 ± 23
0.7
DBP (mmHg)
77 ± 8
73 ± 9
74 ± 20
66 ± 22
74 ± 6
69 ± 9
0.72
Perceived exertion
19 ± 1.3
18 ± 1.5
17 ± 2
18 ± 1.7
18 ± 1.7
19 ± 1.5
0.56
Ventilatory threshold
VE (L/min)
24.2 ± 8
20.8 ± 6
21.0 ± 6.5
20.4 ± 4.8
22.6 ± 5.2
25.2 ± 6.1
0.06
VO2 (mL⋅Kg−1⋅min−1)
15.0 ± 3.7
13.1 ± 3.7
13.8 ± 3.6
13.4 ± 2.7
14.2 ± 3.8
15.6 ± 4.6
0.09
Oxygen pulse (mL/beat)
11.7 ± 3.3
10.4 ± 3.0
10.5 ± 3.3
10.1 ± 2.2
11.0 ± 3.4
11.9 ± 3.3
0.21
Plus-minus values are means ± SD. Denotes < 0.05 for within group comparison (pre versus post training). CPX denotes cardiopulmonary exercise testing. HIIT denotes high intensity interval training. MIT denotes moderate intensity training. CG denotes control group. VE denotes ventilation. OUES denotes oxygen uptake efficiency slope. RER denotes respiratory exchange ratio. HR denotes heart rate. SBP denotes systolic blood pressure. DBP denotes diastolic blood pressure. †Denotes < 0.05 for CG versus HIIT.
