Hey Lorie! Well, man, that is some workout for not feeling great. Phhhhbt!
So how long did you log in timewise? Just remember, try not to go beyond 25 min. You really shouldn't be able to anyhow. Sounds like you did it right. You don't actually want to puke

It's kind of like feeling as if you are really getting close to that threshold where you can't go (but not quite), know what I mean? Say you do ten intervals, it should really start creeping up on you, even by the fourth or fifth interval...as if you are using all your reserves to keep pushing through. Does that all make sense? You are doing great. Keep up the good work!
Sports circuit is done. That class kicked my butt literally and figuratively. My instructor is so awesome. She is a trainer and has been in the field probably 20 years. Today we did really fast paced intervals that were set up something like this:
2 min jump rope (alternating legs)
heavy forward/side lunges (holding 1 heavy dumbbell)
lateral hops (1 min) over body bar
jump snatches w/ heavy wts (kind of like clean n' press)
2 min jump (alternating double hops)
wide pushups/narrow pushups
lateral raises w/ band
2 min jump (feet together)
crunches w/ arm across chest (left side, right side, center = 1 rep)
and it went on and on for almost an hour...you get the gist. Then we did some bicep/tricep work in between speed-agility drills.
Whew.
ETA - you guys can do HIIT on the elliptical, bike, plyometrics, etc. You certainly don't have to limit yourself. Although, here is another great run I like to do, though it's probably somewhat more intervals (I forgot who I got this from on another forum):
Start 6.0 5 min
6.5 for 1/10 mile
7.0 1/10 mile
7.5 1/10 mile
8.0 1/10 mile
8.5 1/10 mile
9.0 1/10 mile
and then bring it back to 6.5 but only go up to 8.5. So, every cycle you go up one less than the one before until you are back to 6.5. Cool down on 6.0 for 5 min. I usually walk for a minute in between cycles b/c this is such an intense butt kicker. It really creeps up on you. Give it a go sometime.
Debbie
Brain cells come & brain cells go, but fat cells live forever.