On‐Line Minicomputerized Measurement of Cardiopulmonary Function On a Breath‐By‐Breath Basis

12 healthy male volunteers

On-line minicomputer-based system for determining breath-by-breath respiratory gas exchange and cardiopulmonary function during rest, exercise (300, 600, 900 kpm/min), and recovery

Standard values established in the exercise physiology literature

Cardiopulmonary response (oxygen consumption, carbon dioxide production, ventilation, partial pressures of end-tidal oxygen and carbon dioxide, and heart rate)surrogate