Why Your Sprint Training Comes Too Late
Most clubs train speed only when players already need to be fast. On the window of opportunity almost everyone misses.
Jonas Reinhardt · July 28, 2026
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Lactate Doesn't Lie. But It Only Tells Half the Story.
The lactate value is the most famous number in training management, and the most misunderstood. What it really shows, and what it doesn't.
Jan HollmannTraining Scientist · July 14, 2026
Few numbers carry as much authority in endurance sport as lactate. Yet the value doesn't measure fatigue, it measures the balance between production and clearance. Confuse the two, and you're steering your training by the wrong variable.
What the number is actually good for
Lactate is excellent at marking metabolic zones and making development visible over weeks. It's bad at explaining daily form. Sleep, nutrition, and heat shift the curve more than most people think.
The combination makes the call
Only together with heart rate and perceived effort does a lactate value become a training decision. A single number isn't a diagnosis, it's one piece of the puzzle.
Takeaways.
- Lactate marks zones; it doesn't explain daily form
- Keep test conditions constant, or values aren't comparable
- Always combine it with heart rate and perceived effort
Keep reading.
The ACL Has Healed. The Head Hasn't.
Nine months of rehab, every test passed, and still the knee hesitates in the first duel. Why return to sport is also a mental game.
Tobias Vogel · June 30, 2026
Opponent Analysis in 90 Minutes: The Complete Workflow
Between amateur football and the pros, the gap in analysis isn't talent, it's process. Here's what a lean one looks like.
Sofia Marques · June 16, 2026