Improving running performance

After about eight months I finaly went to a cardiologist. I was concerned because my ecocardiogram said something strange. The doctor order a treadmill test and a blood pressure holter, and he said that I was healthy. Now I can run again, I must maintain my heart rate below 145 bpm. I didn´t told to the doctor that I develop asthma with my running and my heart rate go higher than 145 bpm. Normaly when I run the heart rate can go up to 165 bpm and normaly in this moment I stop. But now I need to recover my lost fitness and I also need to do something in order to run and maintain the heart rate lower than 145 bpm.

The first thing that I prove was the homeopathy. Now I am taking some pills but I don´t feel that I am really improving. For this reason I search in the internet and I found something related with a Russian doctor named Buteyko. According with this doctor the asthma is only a consequence of a bad way of breathing. He say that some people hyperventilate. That means that with each breath I take a volume of air greater than the necessary. The consequence of this is that we have a change of CO2 per O2 greater than the normal. That means that the amount of CO2 in the blood is lower than a normal person. Then the blood is alkalyne with a lower percentage of CO2. The reaction of our organism to this situation are a lot. The two most important are: (a) a generalized vasoconstriction lowering the O2 available for the muscle and (b) to close the aerial ways for breathing - then asthma. The remedy is obvious is to tray to breath a lower volume of air. In other countries there are institutes for teaching this Buteyko breathing method.

I have runned three times making breathing excercises. I really try to breath a lower volume of air. In those moments I felt anguish. I needed to breath, but my my polar said that the heart rate was not increasing. I really realized that I can to change, but is very very hard. I am trying.