Endurance sports are an increasingly popular way of keeping fit. However, overtraining can often cause physical symptoms of overloading. This volume shows readers how to optimize their performance without experiencing these types of problems. Supplementary Training features targeted programmes composed of stretching, strengthening, co-ordination and relaxation exercises. It also presents the typical symptoms of injuries caused by cycling, swimming, and running, along with extensively illustrated exercises to counteract them. This will become an essential reference for all endurance athletes - from first time triathletes to seasoned pro's.