running uphill

Top 4 Reasons Ultrarunners Should Do More Intervals Uphill

  Oh, how we trail runners love and loathe running uphill. Deviations from the horizontal plane elicit agony and euphoria all at the same time. Agony from the heart pumping, legs screaming feeling of increased effort; and euphoria from the accomplishment of reaching the summit. I prescribe intervals to be done uphill roughly 80% of …