10 posts
Your muscles need ATP to contract, but where does it come from? A deep dive into the three energy systems, phosphocreatine, glycolysis, and oxidative phosphorylation, and what they mean for your training.
Dr. Sebastian Reinhard 
Why structured strength work improves endurance performance, how to program it alongside aerobic training, and how to track progressive overload without compromising your key sessions.
Sarah Karollus 
From adaptive periodization to real-time physiological modeling, artificial intelligence is reshaping how endurance athletes train, recover, and perform. We examine the science behind the shift.
Dr. Sebastian Reinhard 
Your training log knows things you don't. Here are five common mistakes that show up in the numbers long before they show up in your legs.
Sarah Karollus 
Two systems for measuring intensity, each with distinct strengths. Learn when to use heart rate, when to use power, and how EndurexAI integrates both.
Dr. Sebastian Reinhard 
Training stimulates adaptation, but the adaptation itself occurs during rest. Understanding the physiology of recovery helps athletes plan better and perform at their best.
Sarah Karollus 
A guide to Chronic Load, Acute Load, and Form, the three metrics derived from the impulse-response model that help endurance athletes balance training stress and recovery.
Sarah Karollus 
From base building to race-day sharpening, how to structure months of training into a coherent season that builds fitness without burning you out.
Sarah Karollus A structured approach to aligning nutrition with training phases, covering base, build, peak, and race fueling strategies backed by sports science.
Dr. Sebastian Reinhard 
The principles stay the same but the emphasis shifts as you move from shorter races to longer ones. Here is how training changes across the distance spectrum.
Sarah Karollus