You really know what to work on if you know the VLamax
— Dan Lorang - High Performance Coach of Ironman World Champion Jan Frodeno

Did you ever wonder…

  • What enables high performance at anaerobic threshold?
  • Why do different athletes require different fueling strategies and carbohydrate intake?
  • Why do different athletes encounter different abilities to utilize fatty acids as a fuel – even though those athletes might possess similar performance at anaerobic threshold?
  • What allows certain athletes to change their race rhythm and attack their competition, with bouts of high power/energy output, again and again and again?

 … if these questions are of interest to you – assessing VLamax might – in most cases – be the answer to these questions.


The unnoticed game changer

A high VLamax allows for high performance in short events such as sprinting. On the other hand, high VLamax causes higher glycolytic flux rate at sub-maximum intensities. This leads to high carbohydrate combustion, slower recovery from lactate accumulation, lower energetic contribution from fatty acids and lower performance at anaerobic threshold.


In the highest ranks of sports, such as swimming, triathlon and cycling, the integration of VLamax as a metric has helped to understand athletic performance. Almost unnoticed in the past decade, VLamax has been a key metric to success To get it right you need to know and understand the VLamax of your athlete.

INSCYD: Dan Lorang - coach of Jan Frodeno and other professional athletes, on the importance of VLamax in Ironman