Encyclopedia of Exercise Medicine in Health and Disease

2012 Edition
| Editors: Frank C. Mooren


Reference work entry
DOI: https://doi.org/10.1007/978-3-540-29807-6_3



Acidosis specifically refers to an increase in the hydrogen ion concentration ([H+]; decrease in pH) of the systemic circulation. There are two main types of acidosis that are associated with exercise and recovery from exercise, and these typically occur together with the contributions of each dependent on where the acidosis is assessed, e.g., contracting skeletal muscle, venous blood draining contracting muscle, and arterial blood [4]. A respiratory acidosis is defined as in increase in [H+] caused by or associated with an increase in the partial pressure of carbon dioxide (PCO2).With a respiratory acidosis there typically occurs an increase in the bicarbonate concentration ([HCO3]) as described by the Henderson–Hasselbalch equation:
$$ {{\text{K}}_{\text{c}}}\cdot{\text{PC}}{{\text{O}}_2} = \left[ {{{\text{H}}^{+} }} \right]\cdot\left[ {{\text{HC}}{{\text{O}}_3}^{-} } \right] $$
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© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of Human Health and Nutritional SciencesUniversity of GuelphGuelphCanada