4x8 (short) High Intensity Interval (HIIT)

• Cycling
• 1hTime
• 83Stress
• 0.91Intensity
• 40Popularity

About this workout

The 4x8 High Intensity Interval workout is a classic threshold session that pushes your limits with 8-minute efforts at 105% FTP, making it ideal for sustaining the pace during group rides and TTs. This Seiler-inspired protocol builds your sustainable power while sharpening your FTP, perfect for those looking to maximize training returns in a time-efficient manner.

Workout structure

• 10 min @ 60% (60w)
• 4X
  • 8 min @ 105% (105w)
  • 2 min @ 50% (50w)
• 10 min @ 60% (60w)