Abstract
The purpose of this study was to determine if pace changes similar to those experienced in competition could affect the relative contribution of aerobic and anaerobic processes to overall energy utilization during running. In particular, does a fast start in the mile race increase the energy supplied aerobically during the first three-quarters of a mile such that the lactate formation is reduced prior to the usual rapid last quarter? Eight subjects (middle and long distance runners) ran three-quarters of a mile on a treadmill according to a fast-medium-very slow (F-M-S) and a slow-medium-slow pace. The two paces were performed in a random order and the total running times were equal. No significant differences were found between the two paces for oxygen uptake during the runs, for the 15-min recovery oxygen and for the post-exercise peak lactate values. Although several world class milers have employed a fast-medium-slow-fast pace, the present data concerning the relative contribution of different energy sources do not explain why this might be the best pacing technique.
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The aid of Mr. Paul Martin was greatly appreciated.
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Léger, L.A., Ferguson, R.J. Effect of pacing on oxygen uptake and peak lactate for a mile run. Europ. J. Appl. Physiol. 32, 251–257 (1974). https://doi.org/10.1007/BF00423220
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DOI: https://doi.org/10.1007/BF00423220