Intervals by Time Workout

15min on, 8min off,
8min on, 3min off,
3min on, 2min off,
1min on, 1min off,
1min on

Tried this on the rower. My blood sugar plummeted after the 8 minute interval, so I had to cut this one short. Distances:
15min: 3394
8 min: 1796
others: DNF