Training Heart Rate

If you are serious about fitness, health, and performance, then Heart Rate Training, Second Edition, is for you. With a myriad of affordable smartphone apps and wearable devices enabling you to track your body's response to activity, it's never been easier to use heart rate monitoring to customize your training—and this guide will show you how!

I can’t tell you how excited I am to finally be able to share Inferno HR with you! If you don’t already know, the “HR” stands for heart rate training. In this series we are getting strategic about how much time we spend in each heart rate zone. This is the FIRST TIME live data has ever been incorporated into an interval heart rate zone workout series.

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