In the early phases of a training program, many runners regularly do hill repeats as a way to work on lower-leg strength, improve power and reinforce the basic tenets of good running mechanics. Later ...

I love to run—but I detest running uphill. When I hit an incline, my legs burn, I get acid reflux, and I often need to take a break to catch my breath. Jogging over hills is so terrible for me that I ...