There is a multitude of good information available on the internet. You can find information on just about anything if you search hard enough. The problem is that the information is scattered around, a little here and a little there. Also, it is often hard to separate good information from propaganda. What we have done is to produce a launching pad for a large volume of information on athletic performance enhancement. It includes information on muscle physiology, cardiorespiratory physiology, endurance training, running, nutritional supplements, strength training, nutrition, body composition, swimming, cycling and a miscellaneous section that contains discussions on various sports science topics. We hope that it will be a useful starting point in your search for information. We are grateful to all of the hard working physiologists, physicians, athletes, coaches, therapists, trainers and teachers who have made such a wide variety of information available to us on the internet. We hope that this will be an example of what is best about the internet. Chapter 1 Basic Exercise Physiology Chapter 2 Endurance Training Chapter 3 Running Chapter 4 Nutritional Supplements Chapter 5 Strength Training Chapter 6 Nutrition Chapter 7 Miscellaneous Chapter 8 Measuring Body Composition Chapter 9 Swimming Chapter 10 Cycling Chapter 11 Injuries