Intermittent Hypoxic Training or (or Intermittent Hypoxic Exposure IHE) includes living and training at sea level, alternated with living and training at High Altitudes, without having to go to the mountains.
Intermittent Hypoxic Training has been applied for many years to help athletes and mountaineers adapt to High Altitude. It is a proven, effective system to enhance performance with athletes, but it is also used for wellness purposes.
(source: Millet et al., 2010)