Table 1. Effects of the employed interventions on cardiorespiratory fitness measures.
ASRHIIT MASHIIT SIT
Pre Post Pre Post Pre Post
V̇O2max (ml·kg-1·min-1) 52.5 ± 3.2 55.4 ± 3.8 52.4 ± 2.4 54.5 ± 3.1 51.7 ± 2.3 54.5 ± 2.4
5.5 * 4.0 * 5.4 *
P-value 0.004 0.005 0.002
ES (d) 0.8 0.7 1.2
CV of %Δ 18% 45% 11%
Residuals in %Δ 0.83 1.65 0.51
VT1 (%V̇O2max) 73.8 ± 3.3 77.6 ± 3.3 73.2 ± 3.3 76.5 ± 3.2 73.1 ± 3.6 77.4 ± 3.7
5.1 * 4.5 * 5.9 *
P-value 0.003 0.009 0.002
ES (d) 1.1 1.0 1.3
CV of %Δ 17% 40% 11%
Residuals in %Δ 0.78 1.53 0.56
VT2 (%V̇O2max) 86.3 ± 4.5 89.0 ± 4.6 85.5 ± 5.3 87.6 ± 5.4 85.1 ± 5.1 87.9 ± 4.9
3.1 * 2.4 * 3.3 *
P-value 0.002 0.009 0.001
ES (d) 0.6 0.4 0.5
CV of %Δ 20% 47% 16%
Residuals in %Δ 0.57 0.79 0.35
COmax (l·min-1) 31.5 ± 1.4 32.9 ± 1.3 31.7 ± 1.8 32.9 ± 1.5 31.4 ± 2.0 33.3 ± 2.2
4.4 * 3.9 * 6.0 *
P-value 0.001 0.005 0.001
ES (d) 1.0 0.7 0.9
CV of %Δ 18% 41% 12%
Residuals in %Δ 0.67 1.37 0.58
SVmax (ml·beat-1) 159.3 ± 7.0 167.7 ± 7.7 158.4 ± 7.7 165.1 ± 8.2 156.8 ± 6.1 165.6 ± 6.7
5.2 * 4.2 * 5.6 *
P-value 0.003 0.008 0.0091
ES (d) 1.1 0.8 1.4
CV of %Δ 20% 36% 11%
Residuals in %Δ 0.91 1.40 0.53
Values are means ± S; V̇O2max, maximum oxygen uptake; VT1, first ventilatory threshold; VT2, second ventilatory threshold; COmax, maximal cardiac output; SVmax, stroke volume; N = 10 for each group.
* Significantly greater than pre-training value (P < 0.05).
† Significantly lower than MASHIIT.