Nov 1, 1975

Arterial catecholamines in hypoxic exercise in man

Clinical Science and Molecular Medicine
L J ClancyD C Flenley


1. We measured the minute ventilation and arterial blood catecholamine concentrations in four normal men standing and at two levels of moderate treadmill exercise breathing 14% oxygen or air. 2. Minute ventilation was significantly higher during hypoxic exercise than during normoxic exercise at an oxygen uptake of 1500 ml/min. 3. Arterial plasma noradrenaline during hypoxic exercise at an oxygen uptake of 1500 ml/min was significantly greater than at rest. 4. Arterial plasma noradrenaline during normoxic exercise at an oxygen uptake of 1500 ml/min was not elevated above the resting concentration. 5. The results are compatible with the suggestion that increased concentrations of arterial plasma noradrenaline contribute to the hypoxic potentiation of the respiratory response to moderate exercise.

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Mentioned in this Paper

Catecholamine [EPC]
Plasma Cell Neoplasm
Catecholamines Measurement
Norepinephrine, (+, -)-Isomer
Epinephrine Acetate
Dopamine Beta Hydroxylase Deficiency

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