Which Exercise Machine Works Better?

Which exercise machine works better and faster to lose weight?
A exercise bike.. ?
Or a Elliptical Trainer.. ?

And why?

(I'm 13, trying to lose 30 pounds.)

i think the tread mill exercise machine is the best to lose weight and to tone up your body but if i have the two options which you have written then i will go for an elliptical trainer...


$$** LIVE LIFE KING SIZE **$$

Treadmills are very bad for your knees. I bought a Gold's Gym recumbent bike from Walmart.com:

http://www.walmart.com/catalog/product.d...

I put it in the basement, aimed a fan at it and parked a TV in front of it. It's got 8 pre-programmed workouts in it as well as speakers for an MP3 player and it monitors calories burned and heartrate. It even has light indicators to let you know if you are biking too slow, too fast, or right on target.

Recumbent's (the sitting-down style bike with the pedals in front of you) are great because they are zero impact and they don't hurt your back the way a regular exercise bike would. The one I bought was about $240, but they've got cheaper ones at the link below.

Whatever you buy, the main thing is actually using it. The t.v. really helps. Sometimes I pop a DVD in and actually do about 4 of the pre-programmed workouts.

The one you're going to use every day for at least 30 minutes. If I were to pick just one, I'd go for the Elliptical but it really doesn't matter. The key is to work out consistently--at least five days a week--then extend the time to 45 minutes to one hour. Btw, the elliptical works on more muscle groups.

i think a tredmill will b gud......or othwise evn without a machine in ur home........go for a walk,swimming,or even join a dance course.........im sure one of these will work out.......cheers