Hi, new-bee's first question..

[FemCat]

Hi all, this board seems awesome..tons of great info.
I have a question, sorry if this sounds stupid..
What, if any is the differenmce on the muscle's you are working when doing cardio exercise..?
I've heard two different sides..1. no difference, more intensity means more calories burned, but the muscle groups don't change/get affected by different types of cardio.. stairmaster, bike, treadmill..all the same thing, just burning calories..not training muscle groups.
2. that depending on what cardio exercise you do, and with what intensity, it does affect and shape different muscle groups..

I think both sound right..maybe there's truth to both.
I know we need both cardio and weight training to get the best results.. that, doing just one isn't going to be optimal.. but, just wondering if the muscles can recognize/change depending on different types of cardio? OR is it really just all calorie burning, and weight training is building muscle .
I know it works the other way around, for instance, doing super sets one right after the other does kill 2 birds with 1 stone.. you get a nice burn on the muscle...as well as burn calories from the cardio..but, not sure it works the opposite way?

Does anyone else get what I mean?
thx S

[MAURER]

well you will be burnnig calories all over no matter what cardio you use. i do think that if you run, for example, your legs will get stronger, but i wouldn't consider it leg training

[Gooseneck]

Cardio generally doesnt build muscle because you're training within the parameters of what the muscle is capable of already. No tearing down of muscle or capillaries thus no new muscle. Now if you are new to cardio then it is possible to gain some muscle in the beginning stages. There might be another point of view about this but hope this helps some.