Sub Threshold #1

Duration 55:00 TSS 59 IF 0.8 Has instructions

warmup 05:00 @ 45% FTP - 75% FTP

2x

01:00 @ 80%

01:00 @ 50%

2x

01:00 @ 98%

01:00 @ 50%

02:00 @ 50%

05:00 @ 95%

05:00 @ 50%

00:30 @ 110%

ramp 09:30 @ 88% FTP - 94% FTP

05:00 @ 50%

00:30 @ 110%

ramp 09:30 @ 88% FTP - 94% FTP

cooldown 05:00 @ 70% FTP - 45% FTP

To build endurance and aerobic efficiency, we need to perform long, steady efforts. Today's session comprises of 2 x 15-minute Sub Threshold efforts. After opening the interval with a 30-second zone 5 surge, the remaining 15 minutes will gradually increase in power throughout the effort. Observe how much this increase in power affects your heart rate.

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