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Etude de la bioénergétique ventilatoire au cours de l'exercice musculaire en altitude

Summary

At an altitude of 2,300 metres, dynamic pulmonary work increases with the level of muscular activity demanded, although the drop in atmospheric pressure tends to reduce it somewhat.

This work (or corresponding rate of respiration) represents only a relatively small fraction of the maximum work which can be determined during M.B.C. and F.V.C. tests.

Moreover, expressed as a metabolical energy expended by the respiratory muscles, this work does not constitute a limitation where muscular activity, at the altitude referred to, is concerned.

However, it would seem advisable to avoid hasty generalization. The three subjects tested were neither trained for the muscular exercise, nor acclimatized to altitude. Only one of them, with 175 watts after twenty minutes exercise, certainly achieved the maximum of his capabilities.

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Bibliographie

  1. Agostoni, E., andW. O., Fenn: Velocity of muscle shortening as a limiting factor in respiratory air flow. J. appl. Physiol.15, 349–353 (1960).

  2. Cara, M., Cara E. M. etEconomides: Spectre de fréquence de l'air courant et de la ventilation lors de l'épreuve de la ventilation maxima. Relation avec la courbe d'expiration forcée. C. R. Soc. Biol. (Paris)146, 709–711 (1952).

  3. Cerretelli, P.: Some aspects of respiratory function in man acclimatized to high altitudes (the Himalayas). Int. Z. angew. Physiol.18, 386–392 (1961).

  4. Dejours, P., Y. Bechtel-Labrousse, R. Lefrancois etJ. Raynaud: Etude de la mécanique ventilatoire au cours de l'exercice musculaire. J. Physiol. (Paris)53, 318–319 (1961).

  5. Fleisch, A.: Ergostat à puissances constantes et multiples. In: Nouvelles méthodes d'études des échanges gazeux et de la fonction respiratoire, p. 65–77. Basel: Schwabe 1954.

  6. Fritts jr., H. W., J. Filler, A. P. Fishman, andA. Cournand: The efficiency of ventilation during voluntary hyperpnea: studies in normal subjects and in dyspneic patients with either chronic pulmonary emphysema or obesity. J. clin. Invest.38, 1339–1348 (1959).

  7. Hyatt, R. E., andR. E. Flath: Relationship of air flow to pressure during maximal respiratory effort in man. J. appl. Physiol.21, 477–482 (1966).

  8. Jay, B. E., andR. H. Wilson: Adaptation of gas absorption Chromatographic technique for use in respiratory physiology. J. appl. Physiol.15, 298–302 (1960).

  9. Johnson jr., F. L.: The effect of decreased barometric pressure on maximum pressure — Volume relationships of the human respiratory system. Aerospace Med.35, 637–642 (1964).

  10. Margaria, R., and P.Cerretelli: Physiological aspects of life at extreme altitudes. Biometeorology 3–25 (1962).

  11. —,P. Cerretelli, P. E. di Prampero, C. Massari, andG. Torelli: Kinetics and mechanism of oxygen debt contraction in man. J. appl. Physiol.18, 371–377 (1963).

  12. —,G. Milic-Emili, J. M. Petit, andG. Cavagna: Mechanical work of breathing during muscular exercise. J. appl. Physiol.15, 354–358 (1960).

  13. Mead, J., and E.Agostoni: Dynamics of breathing. Handb. Physiol. Respir., Fenn and Rahn, (Ed.) Amer. J. Physiol.3, 411–428 (1964).

  14. Milic-Emili, G., eJ. M. Petit: Il limite alla ventilazione polmonare durante l'esercizio muscolare negli insufficienti cardio-respiratori. Med. d. Lavoro50, 175–180 (1959).

  15. — —: Relationship between endoesophageal and intra-thoracic pressure variations in dog. J. appl. Physiol.14, 535–537 (1959).

  16. — —: Mechanical efficiency of breathing. J. appl. Physiol.15, 359–362 (1960).

  17. Naimark, A., K. Wasserman, andM. B. MacIlroy: Continuous measurement of ventilatory exchange ratio during exercise. J. appl. Physiol.19, 644–652 (1964).

  18. Otis, A. B.: The work of breathing. Physiol. Rev.34, 449–458 (1954).

  19. Petit, J. M.: Les mesures de volume pulmonaire et débit ventilatoire et leur signification dans l'estimation de l'aptitude physique. Exp. Réunions Méd. Inst. Nat. Educ. Physique et des Sports 10 Juin 1961.

  20. —,L. Delhez etJ. Troquet: Aspects actuels de la mécanique ventilatoire. J. Physiol. (Paris)57, 7–113 (1965).

  21. —,R. Deroanne, J. Troquet, J. Damoiseau etY. Francois: Examen critique du rendement de l'activité ventilatoire. Influence des méthodes de mesure du travail mécanique, de la température de l'air inspiré, de la pression partielle d'O2 alvéolaire et du régime ventilatoire. Int. Z. angew. Physiol.19, 252–286 (1962).

  22. —,G. Milic-Emili etJ. Troquet: Travail mécanique maximum du thorax et altitude. Rev. Méd. aeronaut.2, 273–276 (1963).

  23. — — —: Travail dynamique pulmonaire et altitude. Rev. Méd. aéronaut.2, 276–279 (1963).

  24. Pugh, L. G. C. E.: Physiological and medical aspects of the Himalaya scientific and mountaineering expedition 1960–1961. Brit. med. J.1962/I, 621–627.

  25. —,M. B. Gill, S. Lahiri, J. S. Milledge, M. P. Ward etJ. P. West: Muscular exercise at great altitudes. J. appl. Physiol.19, 431–440 (1964).

  26. Rahn, H., A. B. Otis, L. E. Chadwick, andW. O. Fenn: The pressure-volume diagram of the thorax and lung. Amer. J. Physiol.146, 161–178 (1946).

  27. Tiffeneau, R., etA. Pinelli: Régulation bronchique de la ventilation pulmonaire. J. franç. Med. Chir. thor.2, 221–244 (1948).

  28. Troquet, J., J. M. Petit, J. Damoiseau, L. Delhez etF. Pirnay: Comparaison des diagrammes pression-volume maximum du thorax obtenus par la méthode statique et par la méthode cinétique. Arch. int. Physiol.70, 425–428 (1962).

  29. Ulvedal, F., T. E. Morgan jr., R. G. Cultler, andB. E. Welch: Ventilatory capacity during prolonged exposure to simulated altitude without hypoxia. J. appl. Physiol.18, 904–908 (1963).

  30. Varene, P., J. Timbal u.Ch. Jacquemin: Effect of different ambient pressures on airway resistance. J appl. Physiol.22, 699–706 (1967).

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Ce texte a fait l'objet d'une communication au Symposium ≪Exercise at Altitude≫ organisé à St Vincent d'Aoste ((Italie)) du 29-9 au 1-10-66.

Avec la collaboration technique de Melles P.Spini et Y.Almoyner

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Jacquemin, C., Varène, P. Etude de la bioénergétique ventilatoire au cours de l'exercice musculaire en altitude. Int. Z. Angew. Physiol. Einschl. Arbeitsphysiol. 24, 164–180 (1967). https://doi.org/10.1007/BF00698331

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