Sub Threshold #4

• 05:00 @ 45% FTP - 75% FTP
• 5x

  00:30 @ 65% FTP,
  00:30 @ 89% FTP
• 02:00 @ 50% FTP
• 03:00 @ 81% FTP
• 02:00 @ 50% FTP
• 10:00 @ 88% FTP - 94% FTP
• 03:00 @ 65% FTP
• 10:00 @ 88% FTP - 94% FTP
• 03:00 @ 65% FTP
• 10:00 @ 88% FTP - 94% FTP
• 05:00 @ 50% FTP

Enter FTP

Sub-threshold intervals are an integral part of building aerobic endurance. By training at an intensity slightly lower than the Anaerobic Threshold, you can complete large volumes of work with minimal anaerobic impact.

Completing sub-threshold intervals results in high oxygen consumption, boosting your aerobic system.