I answer. They can be trained in breathing exercises. And again, as in vascular training stories - this is not what you thought.
First, we are almost always talking about bronchial asthma. With asthma, there will be inflammation in the bronchi, due to which the bronchi spasm, their wall swells, mucus accumulates, and the person suffocates.
Secondly, many people think that physical training of the breathing apparatus is a provocation of its (breathing apparatus) work at some extreme modes, so that the breathing apparatus gets used to the load and then does not complain.
In fact, all these breathing exercises, on the contrary, reduce the load on the bronchi. This is not a sports training on the principle of "take more - throw more", but a list of restrictions.
With sports training, breathing exercises in bronchial asthma are united only by regularity and duration.
That is, to benefit from breathing exercises, you will need to train on a schedule of weeks and months.
Perfect breathing exercises can not be. It is not entirely clear how exactly it works, so there will be different options that someone might offer you someday. This is normal.
There are several unifying principles. They will meet in different methods.
Diaphragmatic breathing
It is helpful to inhale from the belly rather than the upper chest.
Through the nose
It is helpful to always breathe through your nose. In the nose, the air you breathe is warmed and humidified. So it irritates inflamed bronchi less. Dry and cold air provokes bronchospasm, while moist and warm air is better tolerated.
Holding your breath
It is very common in different methods. There is some sense in this. It used to be thought that this is how resistance to increased levels of carbon dioxide in the blood trains.
It was also thought that during a three-second pause after a calm exhalation, the air manages to move from the deformed or mucus-clogged bronchi to a more suitable place.
So they did not fully figure out what exactly is the benefit. But the fact takes place. Different methods of breathing exercises are united by the universal rule to hold your breath at the end of a normal exhalation.
It is just a calm, long passive exhalation, after which the inhalation does not start immediately. It is important that such experiments do not lead to convulsive deep breaths.
There can be no heroic efforts and overcoming obstacles in this matter. Everything is very neat, gentle and gradual.