N4x4

Von Jan van Rensburg auf AppTrack Ninja.

Gold Standard for VO2 Max

Supports iPhone Duo, with expanded workout views and hands-free training when propped open. The best Norwegian 4x4 App on the App Store. Train the Norwegian 4x4 without watching the clock or guessing your effort. N4x4 reads your live heart rate — from Apple Watch, AirPods Pro 3, Garmin, WHOOP, Polar, or any Bluetooth monitor — and turns it into clear push, hold, and ease-off cues through every interval. When you finish, you see exactly how long you held the target zone, and how today compared with last time. Four 4-minute efforts, three easy recoveries. 33 minutes, warm-up and cooldown includ…

Kategorien: Health & Fitness

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