What methods would the body use to provide a person with energy throughout a race?

The following are the energy systems that the body would use to provide a person with energy throughout a race: >ATP-PC-high power, short duration, ATP-PC system can make energy at about 36 calories minute. >Glycolytic-moderate power/short duration can produce energy at about 16 calories per minute. > Oxidative-low power/long duration. creates 10 calories per minute, approximately.