2 Sets of

10 x 0:30 work / 0:15 rest

– Rest 3:00 between sets –

Set 1 – Air/Echo bike
Set 2 – Row or SkiErg

Number of intervals in a set. You should have at least 1 interval in reserve (IIR) on each set (this means you could have maintained the same pace for one more interval if you had to). A good way to approach this is to have 3 IIR on the 1st set, 2 IIR on the 2nd set and 1 IIR on the final set. Only complete the final 3 intervals in a set IF you can still maintain your pace/power.

SESSION NOTES
Overview. This week is a deload in our “Ronnestad” short Vo2max interval progression (reduced volume, keeping intensity). You’re going for a hard, repeatable (about 6:00 max effort) pace. The first set might still feel pretty manageable, but things will get harder from the 2nd set (and if not, you’re not going fast enough).

Short recoveries between the intervals help your body clear (utilise) some of the accumulated lactate from the muscles.

Effort.Work at RPE 8.5–9.5/10. Set 1 should finish with about 3 intervals in reserve, and set 2 with about 2 intervals in reserve. You should always feel like you could complete at least one more interval at the same pace. If power drops, cadence falls apart, or technique changes, stop the set rather than forcing extra reps.

Feel.The first few intervals should feel controlled, but the short rest catches up quickly. Breathing rises and stays high as 15 seconds is not enough time to recover fully. The bike is the hardest but also first set which should make it manageable. Row and Ski are not quite as bad in themselves but fatigue and discomfort will accumulate across the sets.

Adaptation.
Develop your aerobic power and fatigue resistance. The short recoveries help keep oxygen demand high while allowing just enough rest to maintain quality output.

Debrief.
– Did you hold the same pace/power across each set?
– How many intervals in reserve did you finish with on each machine?
– Which machine/set was the hardest for you?
– What went well overall and what can you improve next time?

Movement options. You can replace a machine with another one as needed OR can choose to stay in a single machine all the way through (although this will put more emphasis on muscle fatigue)