Depleting Session #1

• 04:00 @ 45% FTP - 70% FTP
• 01:00 @ 50% FTP
• 3x

  04:00 @ 91% FTP,
  02:00 @ 50% FTP
• 08:00 @ 78% FTP
• 03:00 @ 50% FTP

Enter FTP

Large amounts of tempo work in today's session, but the focus is on fuel. To produce zone 3 power and above requires a significant amount of glycogen.

But what happens when this fuel source has been depleted?