I wrote recently about my interview with Phil Campbell, author of The Sprint 8 Cardio Protocol. Campbell’s book is the fruit of 30 years of self-monitoring, coaching, medical testing, and academic research focused on finding the optimal exercise training program. The conclusion is that the center part of such a program should not be the widely recommended long-form aerobic session, but rather short-form exercise which takes the trainee quickly into anaerobic territory. To get the highest health gains overall, Campbell recommends 8 sprints at maximum speed spread out over a 20 minute time period, 3 times per week.

Read more on Forbes.com.

Phil Campbell

“Sprint 8 is a tried and true workout that can rapidly and radically change your body for the better. It’s simple. It’s effective. And you’re going to love what it does to your body.”