Kristian Blummenfelt and Gustav Iden have between them won every major title in the sport over the past 18 months - Olympic Gold, World Triathlon Series Gold, Ironman 70.3 Champion and Ironman Champion.

This group workout is designed by their coach, Olav Aleksander Bu. He recommends this as the perfect 45 minute session for time efficiency and to allow you to finish the session and be ready to train again the next day. It is a solid session but will not fry you for your other sessions this week.

The workout will have you working around your FTP for sustained descending periods but broken up with 60 second rests to recover and refocus the mind.

This is a workout you can do again and again and you will continue to reap the benefits.