spiroergometry

Machine-translated from the German article

Spiroergometry, or ergospirometry or ergospirography (from Latin spirare "to breathe", Ancient Greek ἔργον "work" and μέτρον "measure"), is a diagnostic procedure in which the response of the heart, circulation, respiration and metabolism, as well as cardiopulmonary performance capacity, are examined qualitatively and quantitatively by measuring respiratory gases during physical exertion. See also: History of ergometry. In 1789, Marie and Antoine Laurent de Lavoisier and Armand-Jean-François Seguin carried out the first experiments to measure human gas metabolism during physical work. The English physician William Prout conducted investigations in connection with walking in 1813, but was unable to obtain conclusive results.