scholarly journals Hypoxia equally reduces the respiratory compensation point and the NIRS‐derived [HHb] breakpoint during a ramp‐incremental test in young active males

2020 ◽  
Vol 8 (12) ◽  
Author(s):  
Rafael D. A. Azevedo ◽  
Béjar Saona J. E. ◽  
Erin Calaine Inglis ◽  
Danilo Iannetta ◽  
Juan M. Murias
2014 ◽  
Vol 28 (7) ◽  
pp. 2071-2077 ◽  
Author(s):  
Marcin Maciejczyk ◽  
Magdalena Wiecek ◽  
Jadwiga Szymura ◽  
Jerzy Cempla ◽  
Szczepan Wiecha ◽  
...  

Author(s):  
Murillo Frazão ◽  
Paulo Eugênio Silva ◽  
Lucas de Assis Pereira Cacau ◽  
Tullio Rocha Petrucci ◽  
Mariela Cometki Assis ◽  
...  

Author(s):  
William J.M. Kinnear ◽  
James H. Hull

This chapter describes how acidaemia stimulates ventilation in the later stages of a cardiopulmonary exercise test (CPET). This happens after the anaerobic threshold, once the capacity of the blood to buffer lactic acid has been used up. The respiratory compensation point (RCP) can be identified from an increase in the slope when minute ventilation (VE) is plotted against carbon dioxide output (VCO2), or from a rise in the ventilatory equivalents for carbon dioxide (VeqCO2). The presence of a clear RCP indicates that the subject has made a fairly maximal effort during the CPET. An RCP also argues against significant lung disease, since it implies the ability to increase ventilation in response to acidaemia.


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