1-Minute On / 1-Minute Off HIIT

By the Watta Team · Updated

Intermediate30 minRowErg
Alternate between one minute of hard rowing and one minute of easy recovery for 10-12 rounds. This classic HIIT format is more sustainable than Tabata while still delivering powerful aerobic and anaerobic training stimulus.

Warm-Up

IntervalTarget SplitRestNotes
5 min2:15-2:25-Easy rowing at 18 spm
3 min2:05-2:15-Build to moderate effort
2 x 30s1:50-2:0030s easyPractice work-interval pace

Main Set

IntervalTarget SplitRestNotes
1 min hard1:45-1:551 min easyRound 1: find pace at 28-32 spm
1 min hard1:45-1:551 min easyRound 2: settle into rhythm
1 min hard1:45-1:551 min easyRound 3: hold consistent power
1 min hard1:45-1:551 min easyRounds 4-6: maintain target
1 min hard1:45-1:551 min easyRounds 7-9: fight drop-off
1 min hard1:45-1:55-Round 10: finish strong

Cool-Down

IntervalTarget SplitRestNotes
3 min2:20+-Easy rowing, recover
2 minVery easy-Light strokes to cool down

Coaching Notes

  • +Work intervals should feel hard but sustainable — around 85-90% effort.
  • +During recovery minutes, keep rowing at a very light pace rather than stopping completely.
  • +Use the PM5 interval workout function to automate the timing.
  • +Track your average split across all work intervals — aim for less than 3s variation.
  • +This session is ideal for VO2 max development when done 1-2 times per week.

Frequently Asked Questions

How hard should the work intervals be?
Aim for roughly your 2K pace or slightly faster. It should feel very hard but not truly maximal. You should be able to complete all 10 rounds at a similar intensity.
Should I stop rowing during the rest intervals?
Light active recovery is better than stopping. Row at a very easy pace during the rest minute to keep blood flowing and aid lactate clearance.
Can I do more than 10 rounds?
Yes, 12-15 rounds is a common progression. However, if you can easily do 12 rounds, your work intensity may be too low. Increase the pace before adding rounds.

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