Welcome to Sparkpeople & Zumba DizzyMiss! :)
I can relate to what you're going through - you definitely have to work your way up to doing an hour of Zumba, so don't feel bad if you can only do a few songs to start with. I find that I really have to use my calf muscles for Zumba because of the twists and turns you have to do. So if you're not used to using those muscles, they will get fatigued pretty fast at the beginning. Just do what you can, and after about a month, you will notice your body getting stronger, and you'll be able to add on more time/songs.
I had lost 30 pounds from just doing Zumba in 2011, but ended up gaining it back after being job transferred in 2012. My schedule after the job transfer got so hectic, and I just didn't handle the changes well at all. So I'm starting over, with my friend Zumba and am going to do ever better this year!
"Success isn't a result of spontaneous combustion - you must set yourself on fire!"
| current weight: 232.4