...Kenneth F. Hossack; Joan E. Eldridge; Phil A. Ades; Richard F. Giansiracusa; Richard H. Jones A group of 15 normal subjects performed a maximal-exercise test on a treadmill. Arterial lactate measurements were related to oxygen consumption (VO 2 ) in an exponential fashion (individual correlation...

...Robert Howard Robson; David C. Fluck The effects of atropine and oxprenolol on changes occurring in total catecholamine, cyclic AMP (cAMP) and lactate concentrations in arterial and coronary sinus blood, during submaximal isometric exercise, were studied in 10 patients. Static one-third-maximal...

... higher in cyanotic patients so that myocardial oxygen consumption was the same in the 2 groups. Coronary flows appeared to be inversely related to hematocrit in the cyanotic group. Myocardial lactate balance was similar in the 2 groups, but coronary sinus lactate/ pyruvate ratios were frequently higher...

... of 55 ± 6 W (97 ± 34 W; p < 0.01), lactate increased from 0.9 ± 0.2 (1.0 ± 0.2) to 2.9 ± 1.3 (3.3 ± 1.3) after 10 min and to 3.1 ± 1.6 (3.4 ± 1.5; NS) mmol · l –1 after 30 min, confirming that the anaerobic threshold reflects a steady state. The CLT kinetics of heart rate (+6 beats in HTR and in CAD...