Its a natural performance enhancer! Unless you run through puddles and now your shoes weigh 5 lbs. Got in some Hill Intervals today on the Struble Trail entrance through my neighborhood.

3/4 mile warm-up
4 x 30 second sprints up a progressively increasing grade (6% to 10%)
90 second recoveries
3 minute REST
Repeated 1x

3/4 mile cool-down

I’m very curious to see how the intervals pay off on Broad Street in May. Three years ago I didn’t run one interval workout. It was all about mileage. This year we’re trying something new, and I’ve got fewer injuries to show for it already!