EFFECTS OF AIRFLOW LIMITATIONS AND TRAINING STATUS ON GAS EXCHANGE AND HEART RATE RECOVERY KINETICS IN ELDERLY SUBJECTS

Authors

  • Z TAOUTAOU Laboratoire des Adaptations et de la Performance Motrice (LAPM)INFS/STS Cité du 19 juin Dely-Brahim BP 71 El-Biar, Alger, Algérie
  • N MIMOUNI Laboratoire des Adaptations et de la Performance Motrice (LAPM)INFS/STS Cité du 19 juin Dely-Brahim BP 71 El-Biar, Alger, Algérie
  • M HAYOT 2 Laboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France
  • V GAUTIER aboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France
  • J MERCIER aboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France
  • C PREFAUT Laboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France

Keywords:

oxygen uptake, carbon dioxide production, heart rate, ventilation, recovery, elderly subjects

Abstract

To determine whether disease and training status results in different recovery kinetics of gas exchange and heart rate response in elderly subjects, 12 healthy control subjects, 18 patients with chronic obstructive pulmonary disease and 12 master athletes were examined during the five-minute recovery from maximal graded exercise. The recovery rate constants of oxygen uptake (VO2), carbon dioxide production (VCO2), ventilation (VE), and heart rate (HR) were fitted by a one-exponential model. Nonlinear regression showed that COPD exhibited a significantly slower recovery decay than CS for (VO2), (VCO2) and (VE), whereas HR recovery appeared to be unaffected by the disease status compared to controls. MA recovered faster than CS, except for (VE) recovery decay. We also demonstrated that the gas exchange and heart rate recovery kinetics were independent of maximal exercise work rate. We conclude that training generally improved the recovery responses in elderly subjects in contrast to the status of respiratory disease

Author Biographies

Z TAOUTAOU, Laboratoire des Adaptations et de la Performance Motrice (LAPM)INFS/STS Cité du 19 juin Dely-Brahim BP 71 El-Biar, Alger, Algérie

Laboratoire des Adaptations

et de la Performance Motrice

(LAPM)INFS/STS

N MIMOUNI, Laboratoire des Adaptations et de la Performance Motrice (LAPM)INFS/STS Cité du 19 juin Dely-Brahim BP 71 El-Biar, Alger, Algérie

Laboratoire des Adaptations

et de la Performance Motrice

(LAPM)INFS/STS

M HAYOT, 2 Laboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France

aboratoire de Physiologie

des Interactions

V GAUTIER, aboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France

aboratoire de Physiologie

des Interactions

J MERCIER, aboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France

Laboratoire de Physiologie

des Interactions

C PREFAUT, Laboratoire de Physiologie des Interactions Hôpital Arnaud de Villeneuve 371, Avenue Gaston Giraud 34295, Montpellier Cedex 05, France

Laboratoire de Physiologie

des Interactions

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Published

2003-12-01

How to Cite

TAOUTAOU, Z., MIMOUNI, N., HAYOT, M., GAUTIER, V., MERCIER, J., & PREFAUT, C. (2003). EFFECTS OF AIRFLOW LIMITATIONS AND TRAINING STATUS ON GAS EXCHANGE AND HEART RATE RECOVERY KINETICS IN ELDERLY SUBJECTS. Sciences & Technology. C, Biotechnologies, (20), 85–92. Retrieved from https://revue.umc.edu.dz/c/article/view/1320

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