... to the working muscles is greatly increased due to the higher haemoglobin levels. Because of the unfair advantage that ReEPO gives to athletes, it is illegal and the IOC classified it as a doping substance in 1990. Altitude training has a very similar affect to ReEPO as discussed earlier. It is totally legal, but not all athletes do it, this is due to a number of reasons. Not all athletes can afford to train at high altitudes, some suffer from altitude sickness, and it is also difficult to train at the same intensity as sea level resulting in detraining. Some athletes however train in specially constructed altitude houses. These allow the environment in which the performer is in to be altered. The partial pressure of both O2 and CO2 can be altered along with the humidity levels and temperature. Blood doping has the same effect as taking ReEPO. The procedure involves an ...

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