Research Article
Comparison of the Effectiveness of High-Intensity Interval Training in Hypoxia and Normoxia in Healthy Male Volunteers: A Pilot Study
Table 2
Maximal oxygen uptake (VO2max) and physiological results before and after training in both training groups.
| | Variables | Pretraining | Posttraining | | 95% confidence interval for differences | | Mean | SD | Mean | SD | Mean differences | Lower bound | Upper bound |
| | Hypoxia group | | VO2max (mL/kg/min) | 53.2 | 2.6 | 59.4 | 4.6 | 0.01 | 6.2 | −8.9 | −2.7 | | LAmax (mmol/L) | 11.1 | 1.8 | 10.4 | 1.5 | 0.06 | −0.7 | 0.1 | 1.3 | | VEmax (L/min) | 163.2 | 9.6 | 166.9 | 13.8 | 0.05 | 3.7 | −12.2 | −2.2 | | HRmax (1/min) | 189.0 | 8.0 | 191.0 | 4.0 | 0.07 | 2.0 | 0.1 | 2.8 | | SBPmax (mm Hg) | 160.0 | 12.0 | 162.0 | 13.0 | 0.11 | 2.0 | −14.1 | −4.1 | | DBPmax (mm Hg) | 77.0 | 8.0 | 72.0 | 6.0 | 0.06 | −5.0 | −11.2 | −2.4 | | SatO2max (%) | 94.8 | 3.6 | 91.5 | 2.4 | 0.01 | −3.3 | 0.8 | 4.4 | | pO2max (mmHg) | 88.3 | 1.7 | 68.2 | 1.2 | 0.01 | −20.1 | 17.3 | 22.7 | | pCO2max (mmHg) | 34.1 | 1.7 | 33.4 | 1.2 | 0.05 | −0.7 | −0.4 | 1.2 | | Pmax (Watt) | 277.3 | 16.1 | 293.6 | 15.7 | 0.05 | 16.4 | −30.2 | −2.5 |
| | Normoxia group | | VO2max (mL/kg/min) | 54.2 | 2.6 | 55.4 | 4.8 | 0.47 | 1.2 | −2.9 | 1.4 | | LAmax (mmol/L) | 11.2 | 1.8 | 10.6 | 1.6 | 0.33 | −0.6 | −0.3 | 0.9 | | VEmax (L/min) | 160.4 | 12.5 | 165.4 | 13.0 | 0.05 | 5.0 | −7.8 | −1.5 | | HRmax (1/min) | 190.0 | 6.0 | 191.0 | 3.0 | 0.06 | 1.0 | −4.0 | 0.1 | | SBPmax (mm Hg) | 156.0 | 10.0 | 155.0 | 9.0 | 1.00 | −1.0 | −8.9 | −4.1 | | DBPmax (mm Hg) | 77.0 | 8.0 | 76.0 | 8.0 | 0.91 | −1.0 | −4.8 | −3.7 | | SatO2max (%) | 98.8 | 3.6 | 96.8 | 4.1 | 0.08 | −2.0 | 1.8 | 3.1 | | pO2max (mmHg) | 88.3 | 1.7 | 87.8 | 1.8 | 0.17 | −0.5 | −0.2 | 1.4 | | pCO2max (mmHg) | 35.1 | 1.7 | 34.2 | 1.3 | 0.08 | −0.9 | −0.4 | 1.2 | | Pmax (Watt) | 280.1 | 15.1 | 290.0 | 9.2 | 0.06 | 18.9 | −31.6 | −4.8 |
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