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Authors

  • Luiz Oswoldo Carneiro Rodrigues LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161
  • Ulisses de Paula Filho LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161
  • Margareth lemos Cortez LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161
  • Paulo Sergio Martino Zogaib LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161
  • Fátima R. P. Tolentino Silva LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161
  • Lineu Freire–Maria LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

DOI:

https://doi.org/10.5007/%25x

Abstract

Oxygen study was conducted to verify the effects of the respiratory alkalosis on the oxygen consumption during a cycle ergo meter exercise in 15 volunteers aging 24,0 +- 3,4 years, fisically  active, who were divided into two groups of 5 and 10 subjects respectively. In the first group,ventilation, oxygen consumption. CO2 production and the pH and the 02 and CO2 partial pressures of the blood were assessed before, during and after two minutes of volunteer hyperventilation. In the second group only the respiratory variables were measured during the cycloergometer exercise , both with and without and after two voluntary hyperventilation. It was verified that the respiratory alkalosis did not modify the ventilation and also that the oxygen consumption tended towards an increase during the exercise, while the respiratory exchange ratio and the mechanical efficiency decreased. The results of this study suggest that respiratory alkalosis may increase the oxygen uptake during the cycle ergo meter exercise, due to the Bohr Effect.

Author Biographies

Luiz Oswoldo Carneiro Rodrigues, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

Ulisses de Paula Filho, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

Margareth lemos Cortez, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

Paulo Sergio Martino Zogaib, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

Fátima R. P. Tolentino Silva, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

Lineu Freire–Maria, LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

LAFISE – EEF – Universidade Federal de Minas Gerais, Caixa Postal 2102 – Belo Horizonte – MG, CEP 30.161

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Published

1990-01-01

Issue

Vol. 3 No. 2 (1990)

Section

Artigos

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