Here on the Tom’s Guide fitness desk, we love nothing more than a weird and wonderful fitness trend — from the Japanese walking method to Jeffing, we’ve tried them all. This year, I’m training for my sixth marathon, and my first marathon since giving birth to my son two years ago. One science-backed method I’ve heard of when it comes to getting fitter, faster, is the Norwegian 4x4 method, so I spoke to Andy Carr, Master Trainer and Head of Fitness, Snap Fitness UK, to find out more about this approach to training.
Created by the Cardiac Exercise Research Group at the Norwegian University of Science and Technology (NTNU), the 4x4 method is a high-intensity interval training (HIIT) session that can be applied to all of your workouts. “The beauty of the Norwegian 4x4 lies in its adaptability. It can be applied to running, cycling, swimming, rowing, or even traditional gym cardio,” says Carr.
