How can spiroergometry be assessed? Spiroergometry also allows a distinction to be made between heart-related and lung-related limitations in performance. Furthermore, various chronic respiratory and pulmonary diseases can be assessed, unexplained exertional dyspnea, but also the risk before a lung transplant can be clarified.
What is the background of spiroergometry?
Biological background of spiroergometry (ergospirometry) Physical exertion increases the metabolism and thus the energy requirements of the working muscles. For energy production, oxygen is needed, which reaches the blood via the lungs and through the veins to the muscle.
What is a contraindication for spiroergometry?
In medicine, this is called a contraindication. Pre-existing conditions that prohibit spiroergometry include: fresh myocardial infarction. untreated or recent cardiac arrhythmias. inflammation of the heart (endo-, myo- or pericarditis) occlusion of a pulmonary vessel (pulmonary embolism).
What values are measured during spiroergometry?
Measured values. The respiratory rate ( AF ), the respiratory minute volume ( AMV ), the carbon dioxide release ( VCO2) and the oxygen uptake ( VO2 ) are measured directly. The respiratory quotient ( RQ = VCO2/VO2 ) and the maximum oxygen uptake ( VO2max ) are also calculated from the above-mentioned values during spiroergometry.
What are the types of spirometers?
FEV1 = one-second capacity; FVC = forced vital capacity; MEF 75, 50, 25 = maximum expiratory flow at 25, 50, and 75% of FVC; MEF 25-75 = mean expiratory flow at 25-75% of FVC. There are several types of spirometers on the market, each with its own specific technical features.
What can spirometry trigger? Spirometry can trigger further investigations, for example imaging tests such as X-ray, CT, ultrasound, as well as endoscopy or biopsy (removal of a tissue sample). Spirometry can be useful for many reasons.
How is spiroergometry used in sports medicine?
Spiroergometry in sports medicine. SUMMARY. Spiroergometry is used in sports medicine in various fields: For endurance performance diagnostics, for the determination of energy metabolism and in the investigation of performance limitations.
How can spiroergometry be performed?
Performance of spiroergometry. Spiroergometry as part of a medical examination takes place with an internist or specialist in heart and lung diseases. Athletes can have the examination performed by a sports physician.
What are the contraindications for the indication?
Due to the increased effort required to perform the test, the indication must be made carefully; in addition, depending on the symptoms and already known underlying diseases, some relative and absolute contraindications must be taken into account, which either only allow submaximal exercise or completely prohibit an exercise test.
What is the guideline of spirometry?
The guideline describes the standardization of spirometry and its interpretation of findings, taking into account the new reference values. Spirometry is a simple, rapid, noninvasive, and inexpensive test for measuring lung volumes and respiratory flow rates.
What body size is included in spirometry?
Body size is also taken into account when determining the standard value. In general, the following spirometry standard values apply: the standard value of the one-second capacity (FEV1) for an adult 35-year-old woman of 1.65 m height is 3.04 liters per second, for a 15-year-old girl of 1.50 m height 2.6 liters.
What are the diagnostic variables of spirometry?
The main diagnostic measures of spirometry are vital capacity (VC), inspiratory vital capacity (IVC), forced expiratory vital capacity (FVC), and forced expiratory volume that can be exhaled within one second (FEV1).
What are the most important parameters of spirometry?
The most important parameters of spirometry are listed in Table 2. Ab. The lung volume that can be maximally exhaled after maximum inhalation (3.3 to 4.9 liters of air). The lung volume that can be inhaled at one time after maximum exhalation (about 3.5 liters of air).
What are the most important measurements of spirometry? Important measured variables of spirometry. The two most important parameters are vital capacity and one-second capacity. Vital capacity (VC) is the maximum volume of air that can be exhaled after maximum inhalation.
When can spirometry be performed? The tests can be performed during or after physical exertion and provide information about the patient's exercise tolerance and his or her lungs. If spirometry is performed before and after administration of a bronchodilator such as salbutamol, it is referred to as a bronchospasmolysis test.
How does the volume in the spirometry container change?
The breathing process now changes the volume in the spirometry container. Thus, during expiration (breathing out), volume is pressed out of the lungs into the container. Since air is lighter than water, the container rises.
What is the formula for volume expansion? Formula for volume expansion The formula for volume expansion when an object is heated is as follows: ΔV = volume change of the object γ = coefficient of volume expansion (property of the object).
How does expiration work in the lungs? Thus, during expiration (breathing out), volume is forced from the lungs into the container. Since air is lighter than water, the container rises. The recorder needle lowers by means of the deflection over the roller system and there is a negative deflection on the ordinate. The expiratory volume is now missing from the lungs.