Anaerobic threshold (PPA). Both of these parameters are widely used -both in assessing overall efficiency, and determining training loads used in training and rehabilitation, recreation and sports.
For the determination of PPA use two measurement methods.
- Invasive: based on the observation of line changes in the concentration of blood lactate during exercise. This method, otherwise known as the bloody method, is based on the tested person performing increasing intensity exercises. Each effort load is followed by a capillary blood sample from the fingertip, and takes about four minutes. During the test, the person’s heart rate is continuously recorded. After the performed analysis, we obtain the PPA as the range of effort load and HR.
- The second of method used by us is a noninvasive method, based on the observation of changes in gas exchange . PPA evaluated by this method is called a ventilation threshold (VT). And in this case, we use a continuous effort for increasing intensity, which by the use of a ergospirometer monitors changes in cardiovascular and respiratory systems. To determine the ventilatory threshold we use the method of “V – slope”. It is based on computer analysis of linear regression of the growth curve of CO2 production, to O2 consumption growth curve and determines the point at which a disproportionate increase in CO2 production exceeds the increase in consumption of O2.
- Equipped with the results of the above tests we can participate in any type of physical activity.