📚 Blog & Scientific Insights

Endurance Insights & Training Science

Deep dives into exercise physiology, power duration modeling, durability analytics, and Nordic training methods.

Mastering the Performance Management Chart (PMC): CTL, ATL, and TSB Explained

Discover how Chronic Training Load (CTL), Acute Training Load (ATL), and Training Stress Balance (TSB) interact to optimize your peak race form.

✍️ Dr. Lars Lindqvist • Aug 25, 2026 • ⏱️ 1 min read

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Analytics

⏱️ 1 min read

Why power output fresh differs drastically from power output after 2,000 kilojoules, and how to train your physiologica…

By Elena Rostova Aug 25, 2026

Training Science

⏱️ 1 min read

Learn how Critical Power (CP) and W' (anaerobic work capacity) govern your ability to attack, surge, and recover during…

By Ability.ICU Editorial Team Aug 25, 2026