this type is used when the body contiunes an activity fo a long period of time and the energy to do so is produced by oxygen.

this occurs when the body works without sufficent oxygen being supplie. if oxygen isnt supplied this can result in only short burts

A temporary buildup of lactic acid can be caused by vigorous exercise if your body doesn't have enough available oxygen to break down glucose in the blood. This can cause a burning feeling in the muscle groups you're using. It can also cause nausea and weakness

lactic acid= a mild poisonand waste product of anaerobic respiration