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Changes in lung function during an extreme mountain ultramarathon.
Journal article

Changes in lung function during an extreme mountain ultramarathon.

  • Vernillo G Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
  • Rinaldo N Department of Neurological and Movement Sciences, University of Verona, Verona, Italy.
  • Giorgi A Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
  • Esposito F Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
  • Trabucchi P Department of Neurological and Movement Sciences, University of Verona, Verona, Italy.
  • Millet GP ISSUL, Institute of Sport Sciences, Department of Physiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
  • Schena F CeRiSM, Research Center "Sport, Mountain and Health", University of Verona, Rovereto, Italy.
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  • 2014-09-30
Published in:
  • Scandinavian journal of medicine & science in sports. - 2015
Fatigue
pulmonary function
respiratory muscle
spirometry
ultra trail
ultra-endurance
Adult
Altitude
Athletic Performance
Forced Expiratory Volume
Humans
Inspiratory Capacity
Longitudinal Studies
Lung
Male
Maximal Voluntary Ventilation
Middle Aged
Physical Exertion
Running
Vital Capacity
English This study aimed to assess the effects of an extreme mountain ultramarathon (MUM, 330 km, 24,000 D+) on lung function. Twenty-nine experienced male ultramarathon runners performed longitudinally [before (pre), during (mid), and immediately after (post) a MUM] a battery of pulmonary function tests. The tests included measurements of forced vital capacity, forced expiratory volume in 1 s, peak flow, inspiratory capacity, and maximum voluntary ventilation in 12 s (MVV12). A significant reduction in the running speed was observed (-43.0% between pre-mid and mid-post; P < 0.001). Expiratory function declined significantly at mid (P < 0.05) and at post (P < 0.05). A similar trend was observed for inspiratory function (P < 0.05). MVV12 declined at mid (P < 0.05) and further decreased at post (P < 0.05). Furthermore, there are significant negative correlations between performance time and MVV12 pre-race (R = -0.54, P = 0.02) as well as changes in MVV12 between pre- and post-race (R = -0.53, P = 0.009). It is concluded that during an extreme MUM, a continuous decline in pulmonary function was observed, likely attributable to the high levels of ventilation required during this MUM in a harsh mountainous environment.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/46401
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