Why Lactate Threshold trumps Max Heart Rate for Endurance Training

Lactate threshold is a better guide than maximum heart rate for heart rate run training because it gives you a more personalized and accurate measure of your aerobic capacity.

As you exercise harder, lactic acid builds up in your muscles and bloodstream.

Lactate threshold is the exercise intensity where this buildup rapidly accelerates.

For most runners, this occurs between 80-90% of maximum heart rate.

The problem with just using max heart rate for training is that it varies widely between individuals based on factors like genetics and fitness level.

So a heart rate that’s 80% max for one runner could be too easy or too hard for another.

Lactate threshold is a more functional measure of your ability to work aerobically.

Knowing your lactate threshold heart rate zone allows you to tailor your training to target the ideal intensity for building endurance – hard enough to challenge your body, but not so hard that you’re wheezing or struggling.

Using lactate threshold for heart rate training helps optimize development of your aerobic system.

About Liza Smith

Liza: The Endurance Expert – Unlock Your Peak Athletic Potential!

Dedicated to endurance, particularly in extreme events like Ironman, OCR and Ultras, Liza stands out not just as a coach but as an emblem of determination and tenacity.

With a reputation for moulding winners and transforming raw potential into prowess, Liza is the top pick for those aspiring to reign supreme in their sport.

Liza’s coaching philosophy centres on the power of the mind. Her five pillars – Control the Controllable, Find the Positive, Focus on You, 100% Effort, and Extreme Ownership – guide athletes to both mental and physical excellence.

Whether you're just starting out or vying for the gold, Liza ensures your hard work delivers results. Train with Liza and unleash the ultimate athlete within you.