Time: 10 minutes
What It Does
Aside from torching 10-plus calories a minute, this routine boosts speed and enhances the body’s ability to get oxygen to muscles, making future workouts feel easier.
- Jog 2 minutes to warm up.
- Set incline at 3 percent and speed at 8 to 10 mph (you should feel challenged); run 1 minute. Adjust speed to a jog for 1 minute to recover, retaining incline.
- Repeat 5 times, adding 0.5 mph and decreasing incline by 0.5 percent each time. The fifth and final interval should be at a 1 percent incline and 2 mph faster than the starting speed.
- Jog 2 minutes to cool down.
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