This course reviews basic physiology of the body as it relates to marathon training. It reviews the oxygen consumption and utilization of the body frequently compromised by asthma, anemia, and carbohydrate intolerance. We will cover dietary influences as it relates to B vitamins and iron deficiencies as well as glycemic index, sugar intolerance, and fiber and protein associated changes with carbohydrate utilization. This lecture will also cover the importance of proper hydration, water regulation and electrolyte balance. This course will cover the importance of proper planning with endurance training to avoid injury. It will cover strength training issues as it relates to core conditioning, upper body strength, as well as lower body fitness. Alternate forms of conditioning with swimming and biking will also be reviewed in the context of cross training performance. This course will also cover some of the warning signs of pending injury with cramps, muscle tears, tenderness injury, delayed onset muscle fatigue, signs of over training, as well as frequent medical conditions associated with injury including IT band bursitis, runners knee issues, and stress fractures.