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Racing Tactics for the 800 Meters

The 800 meter run is defined as an endurance event in track and field because the aerobic energy demand is slightly higher than the anaerobic energy demand at race pace. It is an event that draws participants both from the long sprint group as well as distance runners that possess good speed. It is not…

Anaerobic Speed Reserve for Distance Runners

The physiological concept of anaerobic speed reserve (ASR) is a relatively new concept to middle distance running.  ASR is defined as the difference between an athlete’s absolute maximum velocity and their maximum aerobic speed (vVO2 max).    The anaerobic/aerobic energy system contribution percentages for a sprint event of 400 meters or shorter is much different…