MAF Training Series - 4 - Heart Rate Variability & Overtraining

Following up on our previous discussion on heart rate monitor training, Dr Maffetone explains the related concept of heart rate variability and what that tells us for our state of fitness. Then, it's the subtle trap of overtraining: what is it and how it progressively develops.
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0:12 What is Heart Rate Variability (HRV)?
3:16 Best ways to measure HRV
4:25 Stress & Overtraining
8:25 Onset of overtraining
11:47 Late-stage overtraining
About Dr Phil Maffetone
Dr Phil Maffetone is an internationally-renowned coach, nutritionist and author, better known for his work with professional athletes, such as ultrarunner Stu Mittleman and six-time World Ironman Champion Mark Allen.
About Heroes Ultra
Heroes Ultra is a 154 km ultra-distance trail race in Crete, tracing the route of the Kreipe abduction, WWII's boldest military operation.
Find out more about Heroes Ultra:
www.HeroesUltra.com
/ heroesultra