In my column this month at Endurance Corner, I’m writing about heart rate variability (HRV). In Part 1, I offer an introduction to the topic and develop the basic concepts and terminology. In an upcoming Part 2, I’ll write about the application of HRV to endurance training and share some information about the currently available hardware and software tools that athletes might find helpful.
When you clicking on ” part one” I get a 404 error message.