Workouts / Interval
Interval
5×5 Minute VO2 Max
Classic 5×5 VO2 set with equal rest, widely used in modern interval prescriptions.
Duration1:15:00
TSS76
IF0.78
Blocks4
Time1:15:00
TSS76
IF0.78
Profile
Targets in % FTP
100%50%0%
0:0037:301:15:00
Z1 67% · 50 minZ5 33% · 25 min
Intervals
4 blocksZ1
Warm-up
15:0055%Repeat 5×
Z5
IntervalStay just above your 4×8 intensity.
5:00112%Z1
Recovery
5:0055%Z1
Cool-down
10:0045%What it trains
VO2-focused intervals raise aerobic ceiling and repeatability for attacks, climbs, and hard surges.