VO2max workout

VO2max 5×3 with 20-Minute Warm-up

Five 3-minute efforts at 115% FTP, each followed by 3 minutes at 65%, after a 20-minute warm-up.

Duration
1 h
Workout Score
73
Intensity Ratio
0.86
Blocks
12

Free, no account needed. The file is created in your browser and stores targets as a share of FTP, so Zwift and other apps that import .zwo files scale them to your FTP.

Interval profile

20min
65% FTP
3min
115% FTP
3min
65% FTP
3min
115% FTP
3min
65% FTP
3min
115% FTP
3min
65% FTP
3min
115% FTP
3min
65% FTP
3min
115% FTP
3min
65% FTP
10min
55% FTP
0 min30 min60 min

Intervals

Targets are a percentage of FTP. Watts are shown for an FTP of 250 W; set your own FTP to recalculate them. Nothing is saved.

FTP
±1/5/10 W
250W
#BlockDurationTargetWattsZone
1Warm-up20 min65% FTP163 WZ2
2Work3 min115% FTP288 WZ5
3Recovery3 min65% FTP163 WZ2
4Work3 min115% FTP288 WZ5
5Recovery3 min65% FTP163 WZ2
6Work3 min115% FTP288 WZ5
7Recovery3 min65% FTP163 WZ2
8Work3 min115% FTP288 WZ5
9Recovery3 min65% FTP163 WZ2
10Work3 min115% FTP288 WZ5
11Recovery3 min65% FTP163 WZ2
12Cool-down10 min55% FTP138 WZ1

Time in power zones

Zones follow the 7-zone model used across TrainCraft, measured as a percentage of FTP.

  • Z1 Active recovery (up to 55% FTP)10 min · 17%
  • Z2 Endurance (56 to 75% FTP)35 min · 58%
  • Z5 VO2max (106 to 120% FTP)15 min · 25%

How the numbers are calculated

Duration is the sum of all blocks. Workout Score and Intensity Ratio are calculated from the interval targets with the same formula as the TrainCraft workout builder, where one steady hour at 100% FTP scores 100. Warm-up and cool-down blocks in this workout hold a single target, so they count at the percentage shown in the table.

Similar workouts

VO2max 4×4 with 20-Minute Warm-up
1 h 2 min · Workout Score 74
VO2max 4×4
57 min · Workout Score 66
VO2max 30/30 3×8
1 h 4 min · Workout Score 72
VO2max 4×5
1 h 5 min · Workout Score 76

Want a different version?

Change durations and targets in the workout builder, or read the training plan guides to see where sessions like this fit into a week.

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