Why Polarised? (80/20, Norwegian 90/10 & More)

We often receive lots of questions about polarised models of training and why they are effective, so here's the underpinning physiology and a little discussion around different scenarios influencing the balance between low and high intensity. For more free resources about improving endurance performance, sign up to our email list here: http://go.metsperformance.com.au/free-mets-mastermind