Physiology of marathons certain physiological characteristics of marathon runners exist. The differing efficiency of certain physiological features in marathon runners evidence the variety of finishing times among elite marathon runners that share similarities in many physiological characteristics. Aside from large aerobic capacities and other biochemical mechanisms, external factors such as the environment and proper nourishment of a marathon runner can further the insight as to why marathon performance is variable despite ideal physiological characteristics obtained by a runner. The first marathon ever run was an unintentional 25 mile trek performed by Pheidippides. Pheidippides was a Greek soldier who ran to Athens from the
Macau Marathon in 1990. The annual marathon race was suspended in 1997 due to the opening of the Macau Olympic Stadium, but a half marathon was held for the first time in its place that year, maintaining the race continuity. The course takes in both Taipa and Coloane (the islands which make up the region) and begins and ends at the Macau Olympic Complex stadium. Since 1998, three races have been held at each edition: the full marathon, a half marathon, and a shorter mini-marathon (roughly 6.5 km). The marathon race attracts a majority of overseas runners, with average yearly totals of