ABSTRACT
When it comes to sport and athletes, some of the most debatable and lively discussions revolve around questions such as “what makes an activity or event a sport?” or “how do you de™ne an athlete?” Probably the most intriguing part about these discussions is that there is really no one correct answer, but we know it when we see it. Just as dif™cult to de™ne for most is exercise. Many people have their own sense of what exercise is, just walk into any local gym or recreation facility and observe for
3.1 Introduction ....................................................................................................23 3.2 Endurance Athletes .........................................................................................24 3.3 Energy Systems ..............................................................................................25
