Anaerobic Endurance

Anaerobic training involves consecutive intervals of intense activity and rest, or less intense activity. As in the course of a game, field players perform a number of short sprints separated by longer periods of jogging. Therefore, this type of conditioning is particularly relevant to soccer and quite effective in burning calories and lowering body fat.

Intense exercise (70-100% of your maximum heart rate) is usually short in duration and is commonly referred to as quality training. During anaerobic activity, the body supplies itself with energy from stored sources, primarily glycogen. In this process, lactic acid is formed in the muscles thus causing fatigue and discomfort. Lactic acid buildup is the reason why anaerobic exercises cannot be long in duration and have to be segmented into intervals.
Anaerobic endurance refers to your ability to sustain intense activity and recover quicker. This is generally dependent upon your body's lactate tolerance and removal. Anaerobic training will help you recover quicker and consistently sprint at top speed. Weightlifters, for example, try to keep time between sets of repetitions as short as possible. This way, they are improving both their musculature and anaerobic endurance.

-fartlek drills
-interval training drills

Related soccer fitness questions

How to consistently sprint at high speed for an entire soccer match