We're playing around with paces ranging from comfortable to very very uncomfortable.
At first glance, this workout may seem like a 🍰, but read it again and you'll realize that this workout will really test your endurance.
In memory of Navy Lieutenant Michael Murphy, 29, of Patchogue, N.Y., who was killed in Afghanistan June 28th, 2005.
These sprints are meant to be short bursts that should make you feel like you want to quit. But you won't, cause you're awesome like that.