VO2max - 4x4 min. (110%)

• Cycling
• 40mTime
• 52Stress
• 0.88Intensity
• 20Popularity

About this workout

The Norwegian 4x4 protocol pushes your limits with 3 sets of 4 minutes at 105% FTP, designed to raise your aerobic ceiling and improve your capacity for those tough climbs or intense race efforts. It's a solid choice for cyclists looking to build serious VO2 max while maintaining quality recoveries.

Workout structure

• 6 min @ 40-55% (40-55w)
• 3X
  • 4 min @ 110% (110w)
  • 4 min @ 50% (50w)
• 4 min @ 110% (110w)
• 6 min @ 55-40% (55-40w)