Scientists can forecast marathon performance fairly accurately. But for longer distances, things get complicated.
'Standing Man' chronicles cyclist Payson McElveen's attempt to set a new fastest known time on a loop of White Rim in Utah's Canyonlands.
And new research shows it may be one reason why women tear their ACLs more often than men
All-out sprint speed may seem irrelevant in longer events, but new science is making the case for having a “speed reserve”
At a conference on sports innovation, sleep scientist Charles Samuels cuts through the hype
The world's most successful freeskier and Warren Miller film star says big-mountain fitness starts at home
Keep the cold at bay with these 9 moves that you can do anytime, anywhere
Here's what he learned from it
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