Your favorite cardio workout?

I love the stair master 15 minutes on that and then a few laps around a track... helps do wonders. lost 7 inches in 5-6 weeks doing that. now I added zumba on the Wii and I am more active. I am also going to start adding weight lifting soon.

P90X Plyometrics - love, love, love it! (Insanity is awesome too!)

I really like putting a pack on with about 35 lbs or however much you can handle in weight put the incline up to 8 to 10 on the treadmill and walk resembles hiking kinda anyway, spin and the stair master

I have 3 favorite cardio workouts (I strongly believe I need to change it up frequently to keep see results and avoid boredom):

1. I love Just Dance for Wii or Xbox-- I have so much fun dancing that I lose track of time and end up doing at least 45 minutes to 2 hours sometimes without even realizing it...my kids and hubby end up joining me and it becomes a fun family time too.

2. I also really like EA Sports Active 2 for Wii because there is a heart rate monitor and the physical trainer on the program has clear instructions while doing various cardio workouts so I dont get bored with the same routine all the time.

3 . Speed walking is another that I enjoy-- I started out by walking 10 minutes a day, each week I increased by 5 more minutes; each day I tried to challenge myself to get further in distance in the same amount of time. (Keep arms moving when walking to increase calorie burn)

Oh man, this is a tough one. It's a tie between body combat and group cycling! Love the music in both and my heart rate doesn't take a break! :-D

My votes are for:
1) Playing squash- absolutely smashes your legs and eventually leads to the mystical 'squash *kitten*'!
2) Spinning- can't beat the zen and the atmosphere is great motivation
3) Mini mountain hiking- find a good 800-1000mt mountain with a path and charge up! the fresh air is great and the sense of achievement when reaching the top is very adictive.

I use the Nike Training Club (NTC) app on my iphone and I love it . It's 30 minutes of interval training with essentially a different exercise every minute- so you never get bored.

Ministry Of Sound: Pump It Up! with the "Call on Me" girls << This is insanely awesome, and the music is fantastic. It's intense cardio.

cant beat turbofire really gets my *kitten* shaking

Swimming, water jogging, aqua zumba/aqua aerobics , biking, zumba, and rowing/elliptical/jump rope. I'd like to get into rollerblading and triathlons.

My own 20 min HIIT session is probably my favorite.
-2 minutes walking
-Run .5-1 miles (depending on the day)
-Sprint for a minute (10mph+), walk for 45 seconds, repeat as many times as you'd like.

Just ordered a speed jump rope and I can't wait to get started on that, I'll proabably come up with some circuit exercise once I get it. Signed up for Lifetime Fitness today as well. I always used to love swimming and plan on getting back into it again now that I have access to a lane pool.

Spinning! I really like to challenge myself my increasing resistance everyday for climb and sprinting so fast that i can't see my legs in the mirror

1. Racquetball
2. Running