Summary
Anaerobic and aerobic-anaerobic threshold (4 mmol/l lactate), as well as maximal capacity, were determined in seven cross country skiers of national level. All of them ran in a treadmill exercise for at least 30 min at constant heart rates as well as at constant running speed, both as previously determined for the aerobic-anaerobic threshold. During the exercise performed with a constant speed, lactate concentration initially rose to values of nearly 4 mmol/l and then remained essentially constant during the rest of the exercise. Heart rate displayed a slight but permanent increase and was on the average above 170 beats/min. A new arrangement of concepts for the anaerobic and aerobic-anaerobic threshold (as derived from energy metabolism) is suggested, that will make possible the determination of optimal work load intensities during endurance training by regulating heart rate.
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With support of Bundesinstitut für Sportwissenschaft, Köln-Lövenich
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Kindermann, W., Simon, G. & Keul, J. The significance of the aerobic-anaerobic transition for the determination of work load intensities during endurance training. Europ. J. Appl. Physiol. 42, 25–34 (1979). https://doi.org/10.1007/BF00421101
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DOI: https://doi.org/10.1007/BF00421101