Functional test of Genchi is performed with breath holding. Such a test helps to understand how well the body is provided with oxygen. This test also determines the degree of fitness of the patient's body.
If the breath is held on exhalation, then the study is called a Genchi test. But there is another similar procedure. An inspiratory breath test is called a Stange test.
During breathing tests of Stange and Genchi, doctors evaluate the duration of breath holding and changes in heart rate. How is the last indicator 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 performed? In order to take the test, the following tools are needed:
- Stopwatch.
- Nose clip.
Step-by-step procedure for the Stange test
Before starting the procedure, the doctor records the patient's pulse. As a rule, count the number of heart beats in half a minute, afterwhich is multiplied by two. Pulse counting is carried out in a standing position. The results are recorded.
Next, the person needs to take three normal breaths and exhalations (not at full depth). After that, the patient should take the deepest possible breath and hold the breath.
A special clip is put on the nose, although you can simply pinch it with your fingers. The doctor records 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 after five minutes.
Assessing the results of the Stange test
If the breath hold was less than 39 seconds, then this result is considered unsatisfactory and may indicate a problem with the respiratory system.
A time of 40 to 49 seconds is satisfactory. If a person can hold their breath for more than fifty seconds, then such a result is considered good and indicates the presence of physical fitness.
How is the Genchi test done?
In this case, holding the breath occurs on exhalation. The Genchi test also helps to determine the degree of fitness and oxygen supply of the body.
What equipment is needed for the study?
- Stopwatch.
- Nose clip. The Genchi test can also be performed without it, as the nose can be pinched with fingers.
The procedure for suchprocedures
As in the previous study, you first need to calculate the patient's pulse. For accurate results, heart rate is sometimes measured twice.
The patient takes three breaths and exhalations, but not as full as possible (about 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 recorded using a stopwatch. After restoring normal breathing, you need to count the pulse again.
Genchi test. Study indicators
If a person managed to hold his breath for less than 34 seconds on exhalation, then this result is considered unsatisfactory.
A reading between 35 and 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 response of heart rate) is calculated according to a certain formula. It is necessary to divide the pulse rate after holding the breath by the pulse rates 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 work of the cardiovascular system and its adverse reaction to oxygen deficiency.
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).
- Oxygen deliverythrough the blood to other organs of the human body.
- Internal respiration (cell gas exchange).
The state of the human body directly depends on how much oxygen is supplied to 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 oxygen deficiency 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, and its depth. Sometimes the degree of endurance of organs is additionally measured.
Small conclusion
One of the methods for studying the work of the lungs are the Stange and Genchi test. With their help, you can identify deviations in the work of the body, which are not always possible to determine in the usual ways.
If there are any diseases in the body, such as anemia, then the breath holding time is reduced. The Stange and Genci test is defined as a study that helps to assess the body's capabilities, its sensitivity to oxygen and fitness.
You can make such samples yourself, because the execution technique is very simple. Therefore, any person can test himself and understand if he has any problems with the functioning of the respiratory and heart organs. Testing requires only a stopwatch and a nose clip (you can do without it).
