Training insights, coaching tips, and endurance sport science.
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 
Winter base miles, spring intensity, summer racing, autumn recovery: how to structure twelve months of training that keeps you healthy, motivated, and improving.
Sarah Karollus 
Mental resilience separates good endurance athletes from great ones. How consistent training, identity, and simple psychological strategies build the foundation for long-term performance.
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