Is Ultrarunning Too Much of a Good Thing?
A scientific review of the effects of ultrarunning on various body systems and for different runners.
It’s Western States 100 week! Read our women’s and men’s previews and, then, follow along with our live race coverage!
A scientific review of the effects of ultrarunning on various body systems and for different runners.
iRunFar digs into the details and implications of heart rate variability for endurance runners.
A review of how running affects the heart in the short and long term.
A report from the 2017 International Congress on Medicine & Science in Ultra-Endurance Sports.