When people are exercising, they intuitively maintain the same running speed regardless of how many kilometres they cover, in order to be as energy efficient as possible. In a race, people try to run ...

Even though I’m an Endorphin Pro diehard, I never seemed to mesh with its counterpart, the Endorphin Speed. I was in the minority; wear-testers raved about the past three iterations, praising the ...

Few of you are coming to me with a focus on your one mile pace, so we’re looking at running workouts that are going to test your speed and improve your endurance. There are tons of ways to incorporate ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. When out for a jog, people automatically settle into energy ...

The Saucony Endorphin Speed 4 is intended to fit into Saucony’s Endorphin line up as a training companion to the race-day Pro 4 — or even the more speed-focussed Elite models. But even though I’m an ...