Fixed Lactate Thresholds Are Complete Nonsense – Time to Call It Out!
🚨 FIND THE ERROR! 🚨

Let’s be real: Fixed lactate thresholds make about as much sense as sunscreen at midnight. Why? Because your body doesn’t care about generic numbers! Here’s why the classic 4 mmol/L rule (or any fixed threshold) is absolute nonsense:
THE MYTH
Somewhere, someone once decided: 2.0 mmol/L = aerobic threshold, 4.0 mmol/L = anaerobic threshold – and people just ran with it.
Newsflash: Your body didn’t get that memo! Fixed thresholds don’t work because they ignore how YOUR body processes lactate.
EVERY BODY IS DIFFERENT – AND SO IS LACTATE!
A top athlete can cruise at 6 mmol/L like it's a Sunday jog, while a beginner at 6 mmol/L is already questioning life choices.
Some people are lactate-recycling machines, others let it pile up like dirty laundry. Same numbers, completely different effects.
SPORT MATTERS, NOT A RANDOM CHART!
🚴 320 watts on a bike ≠ 🏃 3:50 min/km running ≠ 🏊 1:30/100m swimming.
Different sports, different muscle loads, different lactate reactions!
If you think lactate behaves the same in every sport, you probably also think instant coffee is just as good as fresh espresso. (It’s not.)
TRAINING CHANGES YOUR THRESHOLDS!
A beginner in Zone 2? BOOM – 6 mmol/L. A pro? Still chilling at 2 mmol/L.
Your body adapts to training. That means your lactate levels change over time – so why the hell would you train with fixed numbers?
👉 If you want real progress, you need regular testing to adjust your training zones.
WHY PERFORMANCE TESTING IS THE ONLY WAY!
Training based on some outdated chart from the internet? Congrats, you’re basically training blind.
📊 A proper lactate test or spiroergometry tells you exactly where your thresholds are – no guesswork, no BS.
❌ Forget generic formulas.
✅ Train with your real data and actually get faster.
YOU ARE UNIQUE – AND SO ARE YOUR LACTATE THRESHOLDS!
Training with fixed 2 mmol/L or 4 mmol/L lactate thresholds is like using a 1999 GPS to find a new restaurant.
💡 Spoiler: You’re gonna get lost.
🔥 Show your body some respect, get a real performance test, and train like a pro! 🔥
Conclusion:
🚫 Ditch the fixed lactate numbers! Your body deserves better.
✅ Only YOUR individual lactate thresholds matter!
Now go get tested – and train smarter!