Norwegian 4x4
1 creator use or recommend it
A high-intensity interval training protocol consisting of 4 intervals of 4 minutes at high intensity with recovery periods between.
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What creators say
"One of my personal favorites, the Norwegian 4x4. Norwegian 4x4 is gold standard at the moment for improving VO2 max. The Norwegian 4x4 interval training is one of the most effective ways to boost endurance, heart health, and VO2 max."
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"You do Norwegian 4x4, you do the aerodyne bike, like 20 on, 10 off."
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"If I'm trying to do a Norwegian 4x4 or something like that — like 4 minutes on, 3 minutes off, or 4 minutes on, 4 minutes off — do you find that not to be the case for yourself, or how do you approach it?"
More from Tim Ferriss →+1 more mention from Tim
"So, he put him on a 2-year training program which involved the Norwegian 4x4. By the end of the two years, these people were working out about five..."
"The HIT group did the Norwegian 4x4 protocol. It's 4 minutes of running at 85 to 95% of maximum heart rate with 3 minute rest in between, done four times over."
More from Tommy Wood →Keep exploring
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