A high lactate building rate or Vlamax is a measure of your anaerobic capacity.  Too high of a Vlamax impacts the sub-max intensity you will be able to sustain in an Ironman.  

FC Endurance - Triathlon Tips for Iron and Half Iron Distance Triathletes.

What is lactate build rate and how it can impact your Ironman race intensity.

We help iron distance triathletes get the most out of their training time - from Kona qualifiers, top age group triathletes to those striving for a personal best. Following the FCMethod, we train triathlon as ONE DISCIPLINE, knowing that each portion of the triathlon significantly impacts the total outcome. We build durability and resilience to allow for peak performance in all our athletes.

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FC Endurance - Triathlon Tips for Iron and Half Iron Distance Triathletes.