Ventilatory work during exercise at high altitude

P. Mognoni, F. Saibene, A. Veicsteinas

Research output: Contribution to journalArticlepeer-review

Abstract

Oxygen consumption, ventilation, and dynamic respiratory work were measured in three male subjects during cycling at 122 and 3500 mm above sea level (ASL). At a given ventilation the dynamic respiratory work was 20% less at 3500 m ASL; this change was due to a decrease of airway resistance. At a given submaximal exercise intensity, the respiratory work was significantly higher at 3500 m ASL (+ 140%-180%); hence, the increase of ventilation was not compensated for by the decrease of airway resistance. At V̇(O2)max the respiratory work was predicted to reach its maximal value at 5800 m ASL where it was 30% higher than at sea level.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalInternational Journal of Sports Medicine
Volume3
Issue number1
Publication statusPublished - 1982

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Public Health, Environmental and Occupational Health
  • Physical Therapy, Sports Therapy and Rehabilitation

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