The hypoxic mask or elevation training mask is a training tool that prevailed more and more insistently in recent years. Its popularity is mainly associated to the areas of combat sports, especially MMA.
You are discussing a lot about effectiveness of this instrument, but the truth is that first you should understand well the use.
It was mistakenly thought that wearing a mask that limited, during stress, air supply, could simulate a situation similar to that of high-altitude training (hypoxia). The problem is that hypoxia is not determined by the amount of oxygen present, among other things, always the same, whether you are at the beach, on top of a hill or above the IFE, but Platonic oxygen partial pressure.
Basically if you train at high altitude the atmospheric pressure diminishes and the body will adapt by increasing the number of red blood cells, in order to carry more oxygen. With this mask does not happen.
This means that the form is not effective? On the contrary: the use of this medium, just to limit the influx of oxygen, results in:
-improvement of the respiratory muscles
–improving the efficiency of the energy system in the process of anaerobic Glycolysis
–improvement of the cori cycle (lactic acid disposal)
As you can see there are many benefits that apply to those sports that have a high metabolic impact.
Roberto