Unless you have a sport science degree the complexities of squash training can be somewhat difficult to comprehend. Squash is a difficult sport to coach as squash athletes need to use all three energy systems, and almost all of the physical qualities also play an important role in squash performance. Many sports only need to emphasize one or two qualities: for example strength and power are primordial for an American Football lineman – whereas aerobic qualities have minimal importance – on the other hand aerobic performance is everything to a 10,000 meter specialist, with power and speed (as commonly defined – not referring to “speed-endurance”) of little significance. The “Energy Systems Chart (ITF, 2007)” is a commonly used, over simplistic representation of sport physiology, as in most team, dual and combat sports, all three energy systems come into play, often simultaneously, during a competition.