Threshold Intervals 4x5min
1min VO2max at 110% FTP and 4min Tempo at 85% FTP; then 4 x 5min at 95% FTP (1min Endurance at 60% FTP), framed by a warm-up and cool-down.
This training pushes your pain threshold and helps raise your FTP.
On mobile, opening a downloaded .fit file with Garmin Connect can incorrectly import it as a route instead of a workout. Sending it to Intervals.icu instead avoids that — Intervals.icu pushes it on to your connected Garmin or Wahoo device automatically.
Download files (.fit / .zwo)
The .fit file works on Garmin/Wahoo devices. The .zwo file is the original Zwift format — use it to import this workout directly into Intervals.icu (drag it onto your workout library), Zwift, or TrainingPeaks. Both use power targets as a percentage of FTP, applied automatically based on the FTP set in that app or device — the field above only adjusts the watt numbers shown on this page.