“It was the running equivalent ... time,” said CU Boulder Integrative Physiology Professor Rodger Kram. “Prior to Bannister, it was considered impossible—beyond the limits of human physiology.” Seven ...

Since January 1, Freetrail has been rolling out its top 10 performers in trail running for last year and yesterday announced Schide as the overall female ... Last year saw Colorado-based Dauwalter ...

Now, more than 70 years later, scientists say today's female runners are ready to take ... of the University of Colorado Boulder, says that a four-minute mile was once seen as the sporting ...