1. Why a Good VO2 Max is Important

A good VO2 max is important because it indicates how efficiently your body uses oxygen during exercise, which directly impacts your endurance and overall cardiovascular health. Higher VO2 max levels support better heart and lung function, help you recover faster, increase fat burning, and can enhance cognitive function.

2. What is the 4x4x4 Norwegian HIIT Protocol

The 4x4x4 Norwegian HIIT Protocol is a high-intensity interval training method involving 4 intervals of 4 minutes of vigorous exercise, each followed by 4 minutes of active rest.

3. Start Slow

If you’re new to this type of workout, start gradually by doing 2 intervals instead of 4, and work your way up over time. Be sure to include a 10-minute warm-up and cool-down to help your body prepare and recover properly.