Because the thinner air at higher altitudes stimulates the body to produce more red blood cells, and lots of red blood cells means its easier to keep the muscles supplied with oxygen. With more red blood cells in their bodies they can work harder in the richer atmosphere at lower altitudes w/o running out of breath.
Training in altitude increases the performances of the athlets.
The lack of oxygen (hypoxy) forces the body to create more red corpuscle in order to the keep the oxygenation at the same level. At the beggining, the breathing will be faster causing a increasing base-acid balance of blood.
After having acclimated the body to the hypoxy conditions, the athlets will ,after few days, have their breathing rate lowering, blood acidity raising and heart rate decreasing.
Once back on low altitude, the body will keep this higher oxygenation. Muscles activity will be more efficient and recovery will be shorten.
However, take care. Athlets respect a strict process because it can be dangerous.
Athletes train at high altitude to improve their aerobic capacity and red blood cell production. The lower oxygen levels at higher altitudes stimulate the body to adapt by producing more red blood cells, which can enhance endurance performance at sea level. Additionally, training at high altitude can also help athletes acclimatize to compete at similar altitudes.
The simple answer is oxygen starvation. The best athletes train at the higher altitudes because that is where the air is thinner. This forces the human body to work harder, just to expend equivalent energy. People that climb Mt. Everest often suffer from 'altitude sickness' due their lack of conditioning.
An athlete training at a high altitude will perform better than one who trains at a low altitude because of increased lung capacity. At a higher altitude there is less oxygen, so an athlete that trains at a higher altitude will use air more efficiently.
Long distance runners who train at high altitude develop greater lung capacity relative to those who train at or near sea level. Consequently, when these high altitude runners compete with runners from lower altitudes, they have an advantage regardless of whether they compete at lower or higher altitudes.
The Russian athletes train at training camp held by their Russian Sports Ministry.
just high altitudes
Athletes need a good supply of oxygen in their blood systems to perform at their highest potential. The more oxygen in the blood stream, the more oxygen is available to be transferred to each cells' mitochondria. The mitochondria produces the energy that a cell needs to perform at its best. So, the more oxygen there is in the blood, the better an athlete will perform. This is why athletes train at high altitudes without much oxygen - so their bodies produce more naturally. Then, when they compete at lower altitudes, their bodies have extra oxygen and thus, they are able to perform better.
Many UFC fighters train at high altitudes in places like New Mexico and Colorado.
they have prsonal trainers to train them
in their house
Cirrocumulus cloud is a clous that often appears at high altitudes.
Cake mixes contain special directions for use in high altitudes. Many marathon runners train at high altitudes to ensure optimal lung functioning in competitions. The pilot announced to the passengers and flight crew that the plane had reached a comfortable flying altitude.