Are there different methods of altitude training? Which is best?
• Live High Train Low (HiLo). In HiLo, you sleep or work in a low-oxygen environment, using a mask, tent, or semi-sealed room, and continue to train normally, at low altitude. Your exposure to altitude must be 6-8 hours a day for at least 4 weeks. See a typical HiLo training schedule. • Hypoxic Workouts (HW). HW involves riding a stationary bicycle or running on a treadmill for 20-30 minutes three times per week while breathing hypoxic air. HW can substantially lower your blood oxygen saturation, which may stimulate additional production of red blood cells. • Intermittent Hypoxic Training (IHT). In IHT, you repeat short intervals (typically 5 min on, 5 min off) breathing moderately to highly hypoxic air (as little as 10% oxygen). Interval length and oxygen level are adjusted to achieve a certain oxygen saturation in the blood. Which is method best is a matter of ongoing study and debate. It is fair to say that the gold standard, used by most athletes and supported by most scientific re
