Too much cardio?

I don't think that this is true, I really hope it's not. I know if one doesn't eat much, or fuel their body and muscles they will lose strength and muscle mass. Anorexia causes the body to break down muscle, bone density, and even the body's organs. I'm pretty sure that if your eating healthfully, and enough, you aren't losing muscle after 30 minutes of cardio. I'm not completly positive on this, but this is what I've read in magazines and such. Maybe someone else knows more about this.
 
I think this may be true (body starts to break down muscle), but only after extended cardio. I'm not sure how long that would be, o what intensity (maybe a marathon-length workout?) or what intensity would be needed. Since your body uses both fat and glucose as fuel for cardio, you'd pretty much have to deplete those stores before it would start eating up muscle for fuel.

Where did you see the info on 30 minutes? Some hard-core, "wanna get as big as I can" weight lifters do just minimal cardio in order to get bigger. I don't think it's because the cardio eats up the muscle, but rather because doing cardio would keep one from getting bigger gains, perhaps by putting more of a stress on the recuperative systems (since muscle grows during the rest phase).

I'm babbling...just trying to work this out. Anyone have any specific info?
 
I saw the info on a body building forum. So you're probably right about "Some hard-core, "wanna get as big as I can" weight lifters do just minimal cardio in order to get bigger."
Since my goal is just to loose a size (not gain more muscle, just loose body fat) should I do 1 hr of cardio? And should I still do weights (if I don't want to build more muscle), and if so how many time a week should I train each body part?
 
Hmmmm...I've heard that after 30 minutes of cardio was when your body actually started burning fat.
 
That's what I was going to say le. That's what Debra Waterhouse reports in her Outsmarting the Female Fat Cell books. -- Renee
 
The answer is "it depends". I'll post why on the Discussion board since Cathe has requested we reserve this one for her answers.
Maribeth
 

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