The triathlete’s complete guide to heart-rate zone training
We explain why using your pulse rate to fine-tune your training can help you reap big fitness rewards, and how to do it

Joe Beer is one of the UK’s leading multisport and triathlon coaches with a breadth and depth of experience covering endurance training, sports nutrition and advanced sports technology. He is an ambassador for Science in Sport, Neuff Red (including Ventum, Stryd and Deboer) Nopinz, Rotor and ForthEdge.
We explain why using your pulse rate to fine-tune your training can help you reap big fitness rewards, and how to do it