HIIT - high intensity interval training
You can adjust your times, but these are mine. I do a sprint every 5 mintues. So at 5, 10, 15, 20, 25
Precor EFX
Inclilne 13-15 - throughout
Level 7 - rest
Level 13-14 - sprints
5 min. warmup
30 sec. sprint
4 1/2 min. rest
repeat
I sometimes do 45 min., but the last 15 min. are steady if I do.