Progress in Ergometry: Quality Control and Test Criteria: by B. Stoeckle (auth.), Prof. Dr. Herbert Löllgen, Prof. Dr.

By B. Stoeckle (auth.), Prof. Dr. Herbert Löllgen, Prof. Dr. Harald Mellerowicz (eds.)

The size oflactate is easy and trustworthy. The sampling is general­ ly liable, even though discrepancies among pattern websites can take place if samples are drawn in the course of except regular nation stipulations or while blood movement to the location is low. comparability of information among matters should still think about intra- and interindividu­ al version. Interpretation of the importance of blood or perhaps a muscle lactate focus is very tough and neither might be assumed to mirror premiums of lactate free up or construction. Lactate metabolism seems to be very major in non permanent, excessive­ depth paintings lasting a couple of seconds, however the designated position is still confirmed. Blood lactate and the pulmonary elements of anaerobic threshold aren't inevitably causally similar and the importance of anaerobic threshold as a metabolic degree is still vague. there are various examples of alterations in blood or muscle lac­ tate autonomous of oxygen availability, and components equivalent to H+ focus ap­ pear to play an enormous, even though undefined, function in regulating lactate construction and/or release.

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Extra info for Progress in Ergometry: Quality Control and Test Criteria: Fifth International Seminar on Ergometry

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4. Which measurements are included for ECG interpretation, and how can I check these? The system should define the proper onset and end of the QRS complex. In the computer report the averaged beats should be provided with markers which indicate where these points have been defined. If these markers are not in the right position, the whole ECG analysis should be disregarded. In Fig. 1 the use of such markers is illustrated. 5. Has the system been tested rigorously under clinical conditions? In our opinion, the buyer should ask for a "consumer's report" on the systems under consideration.

Br Heart J 40: 1229-1236 16. Burkart F, Barold S, Sowton E (1967) Hemodynamic effects of repeated exercise. Am J Cardiol 20: 509-515 17. Epstein SE, Robinson BF, Kahler RL, Braunwald E (1965) Effects of beta-adrenergic blockade on the cardiac response to maximal and submaximal exercise in man. J Clin Invest 44: 1745-1753 18. Thadani U, Lewis JR, Manyari D, Boroomand K, Cohen J, West RO, Parker 10 (1980) Are the clinical and hemodynamic events during exercise stress testing in invasive studies in patients with angina pectoris reproducible?

5. Has the system been tested rigorously under clinical conditions? In our opinion, the buyer should ask for a "consumer's report" on the systems under consideration. The systems should be tested in clinical practice. Such tests should include a description of the system performance in a large number of patients with various abnormalities, and a summary of the diagnostic performance of the system in comparison with an independant method, such as coronary arteriography or thallium scintigraphy. Unfortunately, to our knowledge, the latter type of testing has not been performed.

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