Threshold

Izaak Walton -4

  • Cycling
  • 1h 3mTime
  • 67Stress
  • 0.80Intensity
  • 80Popularity

About this workout

The Izaak Walton -4 workout features a challenging main set of 4 sets of 2 minutes at 97% FTP, honing your threshold power for sustained efforts during group rides and time trials. It's a classic choice for athletes looking to push their limits and refine their race pace while developing essential endurance for longer efforts.

alicejanelake

Workout structure

  • 4 min @ 50% (50w)
  • 4 min @ 70% (70w)
  • 3 min @ 90% (90w)
  • 5 min @ 40% (40w)
  • 2X
    • 2 min @ 97% (97w)
    • 1 min @ 102% (102w)
  • 6 min @ 40% (40w)
  • 2X
    • 2 min @ 97% (97w)
    • 1 min @ 102% (102w)
  • 6 min @ 40% (40w)
  • 2X
    • 2 min @ 97% (97w)
    • 1 min @ 102% (102w)
  • 6 min @ 40% (40w)
  • 2X
    • 2 min @ 97% (97w)
    • 1 min @ 102% (102w)
  • 5 min @ 40-30% (40-30w)