Functional test of Genchi is held with a breath hold. Such a test helps to understand how well the body is provided with oxygen. This test determines the degree of training of the patient's body.
If breathing is held on exhalation, then the study is called a Genchi test. But there is another similar procedure. An inhalation study is called a Stange test.
By conducting breathing tests of Stange and Genchi, doctors evaluate the duration of breath holding and the change in heart rate. How is the last metric calculated? By the ratio of the frequency of contractions during breath holding to the heart rate at rest. We figured out what the Stange and Genchi test is. Now it is worth considering the technique of the procedures.
What do you need for testing?
How is the Stange test done? In order to do the test, the following tools are needed:
- Stopwatch.
- Clip for nose.
Step-by-step procedure for the Stange test
Before starting the procedure, the doctor fixes the pulse of the patient. As a rule, the number of heart beats is calculated in half a minute, after which the obtained indicator is multiplied by two. Pulse counting is carried out in a standing position. Results are recorded.
Next, a person needs to take three normal inhalations and exhalations (not to the full depth). After that, the patient should take the deepest breath and hold his breath.
A special clip is put on the nose, although you can just pinch it with your fingers. The doctor detects the breath holding time using a stopwatch. After exhalation, when the patient’s breathing is restored, the specialist again measures the pulse. If necessary, a second test can be carried out in five minutes.
Assessment of the results of the Stange test
If the breath hold was less than 39 seconds, then such a result is considered unsatisfactory and may indicate the presence of problems with the respiratory system.
A time of 40 to 49 seconds is satisfactory. If a person can hold his breath for more than fifty seconds, then this result is considered good and indicates the presence of physical fitness.
How is the Genchi test performed?
In this case, breath holding occurs on expiration. The Genchi test also helps determine the degree of fitness and oxygen supply of the body.
What equipment is needed for research?
- Stopwatch.
- Clip for nose. Genchi test can be carried out without it, as the nose can be clamped with your fingers.
The procedure for such a procedure
As with the previous study, you first need to calculate the pulse of the patient. For accurate results, heart rate is sometimes measured twice.
The patient takes three inhalations and exhalations, but not as full as possible (approximately 3/4 of the total volume of the lungs). Then you need to make a full exhalation and pinch your nose with your fingers or a special clip. Time is tracked with a stopwatch. After restoring normal breathing, you need to do a pulse count again.
Gencha test. Study indicators
If a person managed to hold the breath less than 34 seconds on exhalation, then this result is considered unsatisfactory.
An indicator of 35 to 39 seconds indicates the normal functioning of the respiratory system. If the delay time exceeds forty seconds, then the result is considered good.
You should also evaluate your heart rate. The value of PR (an indicator of the reaction of heart rate) is calculated by a certain formula. After holding the breath, you need to divide the heart rate into the heart rate indicators obtained before the study. Normally, this indicator should not exceed 1.2. If it is higher, then this may indicate the presence of problems in the cardiovascular system and its adverse reaction to oxygen deficiency.
The respiratory process and its components
The respiratory process in the human body consists of three stages. These include:
- External respiration (this is gas exchange between the lungs and the environment).
- Delivery of oxygen through blood to other organs of the human body.
- Internal respiration (cell gas exchange).
The condition of the human body directly depends on how much oxygen has entered the internal cells and tissues. These processes are provided by the work of the respiratory organs and the cardiovascular system.
Tissue hypoxia, therefore, can be caused not only by a deficiency of oxygen in the environment or a malfunction of the respiratory system, but also by cardiovascular diseases.
When examining the patient's respiratory system, doctors determine the volume of the lungs, the rhythm of breathing, its depth. Sometimes the degree of endurance of organs is additionally measured.
Little conclusion
One of the methods for studying the work of the lungs is the Stange and Genchi tests. With their help, it is possible to identify deviations in the work of the body, which are not always possible to determine by conventional methods.
If there are any diseases in the body, such as anemia, then the time for holding the breath is reduced. The test test of Stange and Genchi is defined as a study that helps to assess the capabilities of the body, its sensitivity to oxygen and training.
You can make such samples yourself, because the execution technique is very simple. Therefore, any person can test themselves and understand whether they have any problems with the work of the respiratory system and heart. For testing, only a stopwatch and a nose clip are required (you can do without it).