Two people doing intervals on air bikes
Photo: Kiet Le, CC BY 2.0, via Wikimedia Commons (cropped).

Best HIIT Norwegian 4x4 Workouts and News 2026

2026 is here, and the Norwegian 4x4 protocol remains one of the best HIIT workouts for boosting VO₂ max and cardiovascular fitness. This research-backed method—4 minutes at 85–95% of max heart rate, 3–4 minutes recovery, repeated 4 times—continues to gain traction among athletes, fitness enthusiasts, and longevity experts. Here’s a roundup of the best Norwegian 4x4 workouts and news for 2026, including video guides and social content you can follow along with.

YouTube Video Guides

YouTube offers some of the best Norwegian 4x4 workout videos for following along at home or in the gym. Check out these guides for structured sessions:

Instagram & Facebook Reels

Short-form video on Instagram and Facebook Reels makes it easy to get quick tips and follow along with Norwegian 4x4 workouts. Here are some reels to check out:

What’s New in 2026

As the Norwegian 4x4 method gains more attention, expect to see more apps, wearables, and content tailored to the protocol. The Norwegian 4x4 app helps you track intervals and stay in the right heart rate zones, so you can focus on the workout instead of the timer. For the best results, calculate your target heart rate and pair these videos with the app for a seamless experience.

News versus your training log

Fitness news cycles weekly; adaptation cycles monthly. Use headlines as reminders to schedule intervals, not as reasons to rewrite a working program every time an article drops. If your last eight weeks show stable work-interval HR at rising pace, keep the plan—journalism catches up later.

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