Insights
Building Capacity
Ideas on Performance — In Sport, Work and Life
Evidence-based thinking on capacity, recovery, and what elite training principles offer people who don't wear race numbers.
Physiology
Featured · Physiology
Why You Fade Late in Long Events: The Systems Behind Endurance Fatigue
Late-event endurance fatigue isn't just an empty fuel tank. A cardiac physiologist explains cardiac drift, dehydration, and the calcium-handling failure that changes how your muscles work at hour five.
Read the Article →