Cardio Does Not Burn Muscle Mass

Have to love the people who jump in without citing any sources. Especially the ones who write "f---k" and "lol" in an attempt to add legitimacy to their point of view

And scooby qualifies as a legit "source"

http://www.youtube.com/watch?v=66boOY4xXGU

Another guy who can't seem to follow a link. Spend more time with the books, bro:

http://www2.rsna.org/timssnet/media/pressreleases/pr_target.cfm?ID=506

"Cardio does not burn muscle mass, crash diets and bad nutrition burn muscle mass!"
http://scoobysworkshop.com/does-cardio-burn-muscle/

"The reason that cardio has gotten a bad reputation for burning muscle is that most often, people couple drastic diets with cardio in their effort to “cut” after “bulking” – its why I hate the whole bulking and cutting mentality. ) Its the drastic caloric reduction that is responsible for the muscle loss, not the cardio! "

http://fitnessblackandwhite.com/does-cardio-burn-muscle-or-fat/
"As long as you get enough protein … maybe not even as much as you think you need, do some sort of strength training and don’t run 43 miles everyday for two months you really don’t need to worry about cardio burning muscle."

Incidentally, the above study showed a 7 percent decline in leg muscle mass for runners on ultra-long race that was 2,777 miles over two months. As most of us won't be doing that, I don't think we have to worry about loss of muscle mass from a 3-5 mile clip once or twice a week. http://www2.rsna.org/timssnet/media/pressreleases/pr_target.cfm?ID=506

Let's say it like this....

Cardio burns muscle mass when there is not enough energy in the body (carbs) and all of the ATP stores have been depleted. Your body then begins to use amino acids (proteins your muscle) to convert to ATP to use for energy.

So... yes cardio does burn muscle mass if you do so much of it with too little energy (carbs) in your body.

But you can make a blanket statement about cardio burning muscle mass without providing any sources?

Nice double-standard there.

Let's say it like this....

Cardio burns muscle mass when there is not enough energy in the body (carbs) and all of the ATP stores have been depleted. Your body then begins to use amino acids (proteins your muscle) to convert to ATP to use for energy.

So... yes cardio does burn muscle mass if you do so much of it with too little energy (carbs) in your body.

You can't make a blanket statement about something like that. You will get eaten alive on this website for something like that.

Plus, I've never seen this Scooby website before but... if he calls himself Scooby... I would have a difficult time finding him credible. Then again I have a hard time finding people with normal names credible when they just make stuff up and put it on a website....

Let's say it like this....

Cardio burns muscle mass when there is not enough energy in the body (carbs) and all of the ATP stores have been depleted. Your body then begins to use amino acids (proteins your muscle) to convert to ATP to use for energy.

So... yes cardio does burn muscle mass if you do so much of it with too little energy (carbs) in your body.

You can't make a blanket statement about something like that. You will get eaten alive on this website for something like that.

Plus, I've never seen this Scooby website before but... if he calls himself Scooby... I would have a difficult time finding him credible. Then again I have a hard time finding people with normal names credible when they just make stuff up and put it on a website....

At what % of body fat does this start to happen? Please cite sources.

Just have to love the people who refute the assertion and question the sources without providing any sources of their own

Google Gluconeogenesis

Anyone who does cardio regularly already knows how much muscle it builds, retains or burns for them. But since my heart is one of my favorite muscles, even if I can't show it off in an online pic, I'll keep doing my regular cardio exercises.