Polarised training

In October 2025, Siren Amelia Seiler-Viken – daughter of the very Steven Seiler who laid the foundations for polarised training – published the results of an international survey. It posed an awkward question: is there really such a thing as the “Norwegian method” as a universal scale, or is it merely a regional habit that the world perceives as standard? What is the “Norwegian method” and why does everyone cite it…