VO2max, Anaerobic & Sprint cycling workout

Shrinking Climbs

80 min · 66-81 TSS · IF 0.74 · 105-130% FTP · Zone 5+ (VO2max)

0%
50%
100%
FTP
0:00
19:45
39:30
59:15
1:19:00
Duration 1:19:00
Load · TSS 72
Intensity · IF 0.74
Avg target 69%
Work 823 kJ
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What this workout does

Climb repeats that get shorter and harder: 3 minutes strong, 2 minutes harder, 1 minute nearly flat out. Teaches you to empty the tank in stages - exactly how decisive climbs are raced.

Each round moves from sustained climbing at 105-112% FTP into progressively shorter, harder surges, training the aerobic-to-anaerobic handoff that decides raced climbs. Emptying the tank in ordered stages also builds pacing judgment under fatigue. Best late in a build once basic VO2max work is established.

How to ride it

Indoor / trainer

Warm up 15min with 3 short openers. 3 rounds of: 3min at 105-112% FTP, 4min easy, 2min at 112-120% FTP, 3min easy, 1min at 120-130% FTP, 3min easy. Cool down 10min.

Outside

Best on a climb you can rejoin quickly, or one long steady grade. Ride 3min at 105-112% FTP, recover, 2min at 112-120% FTP, recover, then 1min at 120-130% FTP - each rep shorter and more vicious than the last.

Workout structure (80 min)

- Warm-up 15m 55%

3x
- Opener 30s 110%
- 1m 30s 55%

3x
- Climb 3m 109%
- 4m 55%
- Climb 2m 116%
- 3m 55%
- Climb 1m 125%
- 3m 55%

- Cool-down 10m 55%

Targets are a percentage of FTP. This is the same shorthand the free workout builder understands — paste it there to edit any step, or download the workout for Zwift, Garmin or any smart trainer.

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