HIIT Conditioning

Quick question: for the 20 sec on/100 sec off x “x” rounds of anaerobic conditioning, what should be done for the 100 seconds? Should it be a complete rest or could include light cycling (if using an Assault bike) or light walking (if sprinting)? Or it doesn’t matter?

Thanks!

Hi Servo,
Doesn’t really matter, and rest is fine. You want to be prepared to go as all out as possible for that next sprint.

At why point when doing 20/100 should I call it good enough. I just started doing this on a bike. Right now after the 4th set my pace is remarkable slower and I’m struggling to complete the 20 sec. Should I continue at a slower pace for a defined number of cycles or is the goal to hit some level of failure/fatigue?

Thanks