Sprinting

The ability to sprint was introduced in Skyrim. Though sprinting is faster than running normally, it costs stamina points. At its basic level it will take you a total of six seconds to deplete the stamina bar while sprinting continously, and a total of eight seconds to regenerate it again. This is, of course, without having any perks. Increasing your Stamina will also increase the duration of sprint.

To sprint, Press and hold the Alt Key (PC), Press and hold LB (Xbox 360), Press and hold L1 (PS3).