Why there is shortness of breath when walking - the main reasons

The causes of dyspnoea on walking can be very different - from physiological factors to psychosomatic abnormalities and severe diseases. Today we will find out what is dyspnea, a companion of what diseases it is and when it poses a serious threat to health.

Shortness of breath: what is it and why does it occur?

Shortness of breath or dyspnea is a violation of breathing, accompanied by a change in its depth and frequency. This condition is characterized by several basic symptoms:

• breathing becomes frequent and superficial;
• there is a feeling of suffocation and lack of air;
• inhalation and exhalation noisy, often accompanied by whistling or wheezing.

Shortness of breath may appear in a completely healthy person. In this case, it is considered physiological, and arises under conditions of hypoxia( lack of oxygen), which is observed when climbing to great heights or when staying in enclosed spaces where the content of carbon dioxide is high in the air.

Causes of dyspnea with physical exertion is the lack of special training. That is, when a person who has not done sports before, gives the body an intensive load( running, walking, lifting weights), then shortness of breath arises as a compensatory mechanism that allows them to adapt to new conditions. If you've been lying on the couch for half a year before, and then suddenly decided to build muscle, do not be surprised that after a few minutes of training, your breathing will fail, and you will begin to suffocate.

However, physiological dyspnea will not persecute constantly. Regular training, a gradual increase in loads, the formation of endurance - will soon allow you to get rid of this symptom. Quite another matter is shortness of breath pathological, which is a companion of many diseases of the cardiovascular, respiratory, immune system of the body.

Symptoms and classification of

Normally, the respiratory rate is -16-20 per minute. About dyspnea is said when the frequency, rhythm and depth of breathing change, which causes a person considerable discomfort. According to the nature of the manifestation, specialists distinguish three states:

• inspiratory dyspnea - manifested by inhalation and is a consequence of the narrowing of the lumen of large bronchi and trachea;
• expiratory dyspnea - observed on exhalation, caused by narrowing of small bronchi, manifested in conditions such as COPD or lung emphysema:
• mixed type - accompanied by a complicated inhalation and exhalation and is a consequence of severe pulmonary diseases or heart failure.

A healthy person usually does not pay attention to their breathing. With moderate physical exertion, for example, when climbing stairs, the respiratory rate usually increases. This condition does not cause any special discomfort, because shortness of breath quickly passes and breathing is restored. But there are such severe pathologies, when shortness of breath pursues even in a state of rest.

Specialists distinguish 5 degrees of severity in relation to dyspnea following a patient:

1. Zero. Dyspnea appears only with intense physical exertion.
2. Easy degree. Appears with a fast, prolonged walking or during lifting to the elevation.
3. The average degree. It occurs regularly and forces you to a slower pace of walking and frequent stops, necessary to catch your breath.
4. Heavy. Shortness of breath appears after a few minutes of walking and forces the patient to stop every 100 meters, or after climbing just one flight of stairs to restore breathing.
5. Extremely heavy. A person begins to suffocate at the slightest physical exertion, dyspnea may occur even at rest, which makes the patient very rarely leave the house.

Depending on the cause of the occurrence, abnormal shortness of breath is a consequence of anemia, pulmonary, cardiac pathologies and proceeds in acute or chronic form. Such a condition can persist or manifest periodically, with the aggravation of concomitant diseases.

Therefore, do not ignore the dangerous symptom, because it can be a sign of pathologies that threaten life. If dyspnoea occurs, you should consult your doctor and determine the cause of this condition.

Causes of abnormal dyspnea

The main causes of shortness of breath and lack of air for various diseases can be divided into 4 large groups. A characteristic symptom is manifested in the following pathologies:

• Respiratory failure, which develops as a result of bronchial obstruction and lung diseases.
• Heart failure.
• Diseases associated with metabolic disorders.
• Neuroses and neurocirculatory dystonia, accompanied by a syndrome of hyperventilation.

Let us consider in more detail the diseases that can cause severe dyspnoea and cause the patient considerable discomfort.

Shortness of breath in anemia

Anemia is a common disease, accompanied by a change in blood composition and a drop in hemoglobin. The cause of the disease are severe diets, unbalanced diet, chronic bleeding, metabolic disorders or severe infections.

Since hemoglobin plays an important role in the delivery of oxygen from the lungs to organs and tissues, its deficiency leads to hypoxia( oxygen starvation).To compensate for this violation, the body increases the frequency and depth of breaths, trying to pump more oxygen into the lungs, which causes characteristic shortness of breath. The course of anemia accompanies weakness, loss of strength, pale skin, dizziness, headaches, and shortness of breath complicates the disease and delivers a significant discomfort to the patient.

Cardiac dyspnea

Shortness of breath in the pathology of the cardiovascular system accompanies such conditions as acute coronary syndrome, heart failure, heart defects, pericarditis, myocarditis or cardiomyopathy. In the absence of treatment, cardiac dyspnea increases rapidly and is accompanied by other characteristic symptoms - pain in the heart, pallor of the skin, cyanosis of the nasolabial triangle. By the rate of increasing difficulty with breathing, a doctor can judge the severity of cardiac pathology.

If shortness of breath occurs during a night's sleep, you can suspect the development of heart failure. In the chronic form of this disease, shortness of breath is accompanied by deep breaths, so the body reflexively attempts to cope with oxygen starvation.

The most dangerous condition is the increase of dyspnea at rest. This symptom indicates a severe form of heart failure and requires immediate complex treatment in order to avoid possible complications( myocardial infarction).

Another characteristic symptom of cardiac dyspnea is the condition of orthopnea. This is often observed with cardiac asthma and is manifested by increased dyspnoea in prone position. As a result, the patient is forced to occupy a vertical position to facilitate breathing, which is accompanied by insomnia and a sense of chronic fatigue during the day.

With cardiac asthma, paroxysmal dyspnoea develops, characterized by night attacks of suffocation leading to the awakening of the patient. Heart defects cause severe shortness of breath even with minor physical exertions and are also accompanied by rapid fatigue, palpitations, pallor, swelling, pain syndrome.

With paroxysmal tachycardia, dyspnea appears simultaneously with a palpitation, the severity of which depends on how badly the blood flow in the vessels is disturbed. Treatment of cardiac dyspnea is complicated. To eliminate the dangerous syndrome, it is necessary to stimulate the heart and remove excess fluid from the lungs. The patient needs constant supervision of specialists and should regularly take medicines to prevent further progression of the disease.

Pulmonary dyspnea

Dyspnea of ​​varying severity develops in almost all diseases of the lungs and bronchi:

• bronchitis;
• COPD( chronic obstructive pulmonary disease);
• pneumonia;
• pulmonary edema;
• bronchial asthma;
• tuberculosis;
• pneumothorax and emphysema;
• lesion of the respiratory muscles in myasthenia gravis, paralysis, poliomyelitis;
• squeezing of the lungs in scoliosis, Bechterew's disease;
• silicosis - occupational diseases that cause lung damage;
• malignant tumors.

Pulmonary edema develops in the pathology of the left ventricle of the heart. Thus there is a strong dyspnea, causing a gasp, and a damp cough, which is accompanied by the separation of watery mucus. Breathing becomes loud and bubbling, wheezing appears in the lungs. The patient needs urgent medical help.

Acute and chronic forms of bronchitis are accompanied by an inflammatory process in large and small bronchi. The patient's condition is complicated by a runny nose, fever, sore throat. Appears characteristic dry or wet cough, shortness of breath, weakness. Pneumonia - inflammation of the lung tissue is accompanied by similar symptoms, but shortness of breath appears from the very beginning of the disease and is characterized by a mixed form, that is, the difficulty with breathing the patient experiences on inhaling and exhaling.

COPD is a disease of the lungs, accompanied by a narrowing of the lumen of the bronchi and an increase in dyspnea of ​​an expiratory nature. That is, the patient easily inhales, but exhalation is given to him with great difficulty. With COPD, bronchoconstriction is almost irreversible and is accompanied by a wet cough with phlegm.

In bronchial asthma, shortness of breath appears seizures, while the patient breathes in easily the air, but can not exhale it. The condition is complicated by the appearance of congestion and pain in the chest, a cough. The attack is removed by medications - bronchomimetics, which relax and dilate the lumen of the bronchi.

Lung cancer in the initial stages is asymptomatic. Later, as the tumor reaches large sizes, characteristic shortness of breath appears, such symptoms as severe, coughing, coughing up.

Shortness of breath for endocrine pathologies

Diabetes leads to kidney and vascular damage and provokes oxygen starvation of the body. The development of diabetic nephropathy is complicated by anemia and increased hypoxia, which in turn leads to the appearance of characteristic dyspnoea.

Thyrotoxicosis is a condition in which the thyroid gland produces an excess of theroid hormones. Under their influence, the heart muscle begins to shrink rapidly, accelerating metabolic processes in the body and increasing its need for oxygen. Rapid heartbeat makes it difficult to fully pump blood to tissues and organs, which causes oxygen deficiency and shortness of breath.

Causes of shortness of breath in the elderly

With age, the body's immune defenses are weakened, internal organs and tissues are gradually aging, chronic diseases develop. As a result, the risk of severe lung diseases, bacterial and viral infections increases significantly in the elderly. After a certain age line( more often, after 60 years), the following pathologies become the main cause of shortness of breath:

• pneumonia;
• COPD;
• bronchial asthma;
• anemia;
• heart failure.

Often, the cause of shortness of breath in the elderly is concomitant diabetes, obesity and other pathologies of the endocrine system. When there are characteristic symptoms, you should immediately seek medical help. This will help prevent the development of dangerous complications.

In children

Breathing problems can be suspected if its frequency in a baby under 1 year is more than 40 respiratory movements per minute, a child over 5 years old - more than 25 / min. To check the frequency of respiratory movements( BHD), you need to rest while the baby is sleeping. To do this, it is enough to put your hand on the baby's chest and count the number of breaths-exhalations per minute.

If the HDR is significantly higher than normal and slowly restores at rest - you need to sound an alarm and contact a specialist for examination. What pathologies can cause shortness of breath in a child? Most often these are congenital heart anomalies( heart defects) or iron deficiency anemia caused by hypovitaminosis and malnutrition.

To provoke the appearance of dyspnea in a child there may be bacterial and viral bronchitis, pneumonia, allergic reactions or bronchial asthma. In addition, dyspnea in children can occur with acute stenosing laryngotracheitis, accompanied by swelling and narrowing of the larynx. This is a dangerous condition that can lead to suffocation. In this case, the child needs urgent hospitalization.

In pregnancy,

A young woman develops shortness of breath due to pregnancy. Almost 50% of expectant mothers, beginning with the 8th week of pregnancy, begin to experience certain discomfort and difficulty breathing during fast walking or physical exertion. The longer the gestation period, the more pronounced discomfort with shortness of breath and increased fatigue.

We hasten to reassure our readers, since such a state of medicine is considered a variant of the physiological norm. During pregnancy, light women experience a double load, since the fetus does not have its own gas exchange system.

Therefore, lightweight women should provide oxygen to the baby's future. Most often, the respiratory system does not have time to adapt to the increased needs of the body, and the concentration of carbon dioxide in the blood increases( especially with increasing physical activity).This causes shortness of breath or using medical terminology - dysfunctional breathing of pregnant women.

Shortness of breath after eating

Photo: Meat

Disturbance of respiratory functions after a plentiful meal is quite common. Why is this happening? The mechanism of development of "afternoon" dyspnea consists in the fact that after the ingestion of food the digestive system is actively involved in the work. Isolated digestive enzymes are necessary for the cleavage of the food lump.

To ensure these processes, blood flow to the stomach, pancreas, liver and intestine is necessary. If the body functions normally, then this process occurs without deviations. In the presence of chronic diseases, digestion fails, and the internal organs experience oxygen starvation. To compensate for it, the lungs start to work in a strengthened mode, as a result, the breathing becomes quicker and shortness of breath develops.

To which doctor should I apply?

If you have shortness of breath, do not pull with seeking medical help, since this symptom may indicate the development of dangerous diseases. To begin with, you should visit the therapist and undergo the necessary examination.

Diagnostic measures consist of a series of laboratory and instrumental studies and include blood and sputum tests, spirometry, ECG and ultrasound of the heart, chest fluorography or computed tomography( CT), which allows to determine pathological changes in the lungs.

After clarification of the diagnosis and finding out the cause provoking a violation of breathing, narrow specialists will undertake the work. With cardiovascular disorders the patient will be led by a cardiologist, with pulmonary pathologies - pulmonologist. If the cause of dyspnea is other conditions, then, if necessary, endocrinologist, neurologist, hematologist, oncologist and other specialists are involved in treatment.