Fit&Well on MSN
Boost cardio fitness with this beginner-friendly alternative to the trending 4x4 Norwegian interval workout
An expert running coach says this entry-level workout is a more manageable option but holds many of the same benefits ...
13don MSN
What to know about the buzzy Norwegian 4x4 method – and all it can do for your heart health
The reason: The Norwegian 4x4 uses longer high-intensity intervals, which give your heart enough time to reach its full pumping capacity and stay there before you recover. Because of that sustained ...
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