First let me define Anaerobic Endurance. It is a muscle’s ability to keep working at a high intensity for a long period of time. So think of this as a contrast: if you do lots of Anaerobic Strength exercises then one day you might be able to do a push up with someone sitting on your back. Anaerobic Endurance is what you need to improve if you want to complete 100 push-ups non-stop.