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How Lactate Research Can Revolutionise Your Endurance Cycling Training

Pro cyclist getting a blood sample taken for lactate testing
Pro cyclists regularly take lactate tests

Introduction

Ever feel like you’re hitting a wall during intense rides? For years, cyclists blamed lactate as the villain, causing fatigue and soreness. But what if lactate were actually a hero—a powerful energy source and a key to unlocking better performance? Groundbreaking research sheds light on how lactate dynamics influence endurance and how you can use this knowledge to fine-tune your training.


Let’s break it down and uncover how these findings can transform your cycling regimen.


Understanding Lactate

The lactate shuttle cycle
The lactate shuttle cycle

The Lactate Shuttle Theory

Lactate isn’t just a byproduct of effort; it’s a versatile fuel. According to the lactate shuttle theory, lactate produced in one muscle can be transported to another for energy. It’s a vital cog in your body’s energy system, ensuring muscles can keep working hard during prolonged efforts.


Myth-Busting: Lactate Isn’t the Bad Guy

The misconception that lactate causes fatigue and muscle soreness has been debunked. Fatigue arises from hydrogen ions, not lactate itself. Instead, lactate plays a pivotal role in energy production, especially during high-intensity efforts.


Lactate as a Friend, Not a Foe

When you push past your lactate threshold, lactate floods your bloodstream, acting as a fuel reserve. The better your body is at clearing and utilising lactate, the more efficient you become as a cyclist.

Lactate accumulation rate of a cyclist
This rider has a max lactate steady state of 298w and a max lactate clearance rate of 0.65mmol/l/min at 200w, the accumulation rate of 0.65mmol/l/min occurs at 350w

The Research Explained


Study Overview and Key Findings

A recent study (link above) developed a method to calculate lactate production volume during exercise based on blood lactate concentration. It compared the effects of endurance training and PGC-1α overexpression, a gene that boosts mitochondrial function. Key takeaways include:


  • Endurance training lowers lactate production at the same absolute intensity.

  • PGC-1α overexpression enhances lactate handling, even at relative high intensities.

  • Lactate production is linked to mitochondrial biogenesis, aiding long-term endurance.


Why This Matters for Cyclists

Cycling performance hinges on your ability to produce and clear lactate. Enhanced mitochondrial density (from training or genetic adaptations) supports efficient lactate metabolism, allowing sustained power output during challenging efforts.


Training Implications


Adapting Workouts Based on Lactate Dynamics

lack of pyruvate and lactate accumulation
At intensities below the Anaerobic Threshold (1), there is not enough lactate (lack of pyruvate) to fuel the Aerobic system. At intensities above the Anaerobic Threshold (3), lactate accumulates.

To build lactate efficiency, focus on training intensities around your lactate threshold. These sessions condition your muscles to manage lactate production and clearance more effectively.


Leveraging Lactate Threshold for Gains

Your lactate threshold marks the point where lactate production surpasses clearance. Training just below this threshold boosts endurance, while high-intensity intervals above it improve your lactate tolerance.


PGC-1α and High-Intensity Intervals

The research highlights PGC-1α’s role in boosting mitochondrial density. You can mimic these effects through high-intensity interval training (HIIT), which triggers adaptations similar to the gene’s overexpression.


Mitochondrion diagram

Tracking Progress with Blood Lactate Testing

Blood lactate tests are a gold standard for assessing performance. By tracking your threshold over time, you can measure how effectively your training improves lactate handling.



Practical Takeaways


Optimising Recovery with Lactate Insights

Active recovery sessions help clear lactate, reducing post-ride fatigue. Low-intensity spinning flushes out lactate while stimulating mitochondrial adaptations.

Want to know more about work-to-recovery ratios? No problem! Pick any intensity above Anaerobic Threshold and see how long it takes to recover.
Want to know more about work-to-recovery ratios? No problem! Pick any intensity above Anaerobic Threshold and see how long it takes to recover.

Integrating Findings into Periodisation

Structure your training blocks to include a mix of low-intensity rides for mitochondrial development and threshold sessions for lactate clearance. Adjust intensity as your fitness improves.

Power analysis well beyond FTP with INSCYD
Power analysis well beyond FTP with INSCYD

Common Mistakes and How to Avoid Them


  • Overtraining Above Threshold: Constantly pushing into the red zone can hinder recovery and reduce long-term gains.

  • Ignoring Recovery: Skipping active recovery sessions leaves lactate unmanaged, leading to prolonged fatigue.

  • Neglecting Testing: Regularly assessing your lactate threshold ensures your training aligns with your goals.


FAQs


1. What is lactate threshold, and why is it important?

Your lactate threshold is the exercise intensity where lactate production exceeds clearance. Training at this intensity maximises endurance and efficiency.


2. How does PGC-1α affect cycling performance?

PGC-1α increases mitochondrial density, improving your ability to produce energy and manage lactate during hard efforts.


3. Should I use lactate testing in my training?

Absolutely! Testing provides a clear picture of your current fitness and helps you tailor training to improve lactate handling.


4. Can I train my body to handle more lactate?

Yes, with targeted training like threshold and interval sessions, you can boost your lactate clearance and tolerance.


5. What role does recovery play in lactate management?

Recovery is essential for clearing lactate and ensuring your body adapts effectively to training. Active recovery rides are particularly beneficial.


By leveraging lactate insights from this research, endurance cyclists can design smarter, more effective training programs. Ready to take your performance to the next level? Start incorporating these principles into your rides today!

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