Endurance #2

• 04:00 @ 45% FTP - 75% FTP
• 00:30 @ 50% FTP
• 01:00 @ 109% FTP
• 04:00 @ 56% FTP - 75% FTP
• 4x

  00:10 @ 150% FTP,
  04:00 @ 56% FTP
• 00:10 @ 150% FTP
• 05:00 @ 75% FTP - 45% FTP

Enter FTP

Long, low-intensity efforts aren't the only method to build endurance. Incorporating short surges into a steady effort will increase your oxygen uptake and training stimulus.