Aerobic fitness is integral to successful sports performance and to maintaining good health. But what sort of exercise should you be doing to develop your aerobic fitness? This unit will help you to answer this question by introducing you to principles of aerobic exercise prescription. This study unit is just one of many that can be found on LearningSpace, part of OpenLearn, a collection of open educational resources from The Open University. Published in ePub 2.0.1 format, some feature such as audio, video and linked PDF are not supported by all ePub readers.