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
Turin Marathon the Turin International Marathon, which was held annually from 1919 to 1933. The marathon event for the inaugural 1934 European Athletics Championships was held the following year. The city also hosts the annual Turin Half Marathon, which is organised by the same group as the full marathon and takes place in September. Key: Turin Marathon The Turin Marathon () is an annual marathon race which takes place in Turin, Italy in November. The first edition of the modern race was held in 1987, although other marathon competitions have been held in the city prior to this, including sporadic races in