Pulmonary gas exchange does not worsen during repeat exercise in women

Respiratory Physiology & Neurobiology
Gerald S ZavorskyPedro Ruiz

Abstract

The purposes were to determine (1) if repeat exercise worsens pulmonary gas exchange in women, and, (2) if the level of pulmonary edema obtained in these same women is related to the gas exchange impairment during exercise. Fourteen women (27 +/- 4 yrs; maximal oxygen uptake = 3.12 +/- 0.42 L/min) with minimal arterial PO2 (PaO2) ranging from 76 to 104 mmHg with a maximal alveolar-arterial PO2 difference (AaDO2) ranging from 7 to 35 mmHg performed three bouts of near-maximal exercise on a cycle ergometer (236 +/- 27 W) for 5 min each with 10 min of rest between sets. Cardiorespiratory parameters and oxygenation were measured at rest, throughout exercise and recovery. Chest radiographs were obtained before and 30 min after the interval training session (see Respir Physiol Neurobiol, 153 (2006) 181-190). Repeat exercise did not affect pulmonary gas exchange between sets 1 and 3 (change in PaO2 = 3 +/- 2 mmHg; change in AaDO2 = 1 +/- 2 mmHg P > 0.05). Arterial PCO2 decreased by 4 +/- 2 mmHg (P < 0.05) between sets 1 and 2, which did not reduce further in set 3. The level of PaO2 or AaDO2 was not related to the change in edema score or the post-exercise edema score (P > 0.05). In conclusion, pulmonary gas exchange is not worsened i...Continue Reading

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Mar 7, 2006·Respiratory Physiology & Neurobiology·Gerald S ZavorskyPedro Ruiz

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Citations

Dec 7, 2007·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Jordan A Guenette, A William Sheel
Dec 29, 2013·Respiratory Physiology & Neurobiology·Gerald S ZavorskyMassimo Pistolesi
Jan 16, 2007·European Journal of Applied Physiology·M J MacNuttD C McKenzie
Jun 9, 2009·Obstetrics and Gynecology Clinics of North America·Gerald S Zavorsky
Apr 6, 2016·Physiological Reports·Jeremy P WrobelBruce R Thompson
Nov 8, 2006·European Journal of Applied Physiology·Gerald S ZavorskyJuan M Murias
Mar 5, 2008·Medicine and Science in Sports and Exercise·Craig A Harms, Sara Rosenkranz
Dec 3, 2014·European Respiratory Review : an Official Journal of the European Respiratory Society·Yochai Adir, Alfred A Bove
Oct 14, 2010·Journal of Applied Physiology·Gerald S Zavorsky, James D Anholm
Oct 21, 2010·Journal of Applied Physiology·Marlowe W Eldridge

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