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Fat-loss tips - Diet & Supplement Questions Atkins? South Beach? Carbs? Kcals? Creatine? Protein? What? er? ARRRG! Got a diet or Supplement question? Get help with it here!!!

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Old 03-04-2013
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Gbrice75 Gbrice75 is offline
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Originally Posted by BTS View Post
Assuming an individual eats an adequate amount of calories to maintain their LBM and is proportioned appropriately, HITT or any other high intensity form of cardio isn't going to cause them to lose LBM..............Sprinters vs marathon runners....HELLO!......How many Olympic sprinters do you think are doing low-intensity morning cardio for 45mins??

ATP at rest and during low-intensity activity uses primarily carbs/fats. Protein is not normally metabolized significantly except during long-term starvation & long bouts of activity (greater than 90mins). At rest ~70% fats & ~30% carbs maintain ATP production. As exercise begins and intensity increases, there's a shift from fats to carbs. During high intensity aerobic activity, nearly 100% of energy is from carbs (if available). At steady-state, prolonged activity, there is a shift back to fats & proteins.

Amino acids may contribute 3-18% of energy production during prolonged activity to aide in the production of ATP. BCAAs are believed to be oxidized more readily, alanine, aspartate & glutamate may also be used.

Also, what Broscience has failed to realize (obviously, amongst other things), is that when you are depleted (and maybe you're dipping into BCAAs), it tells your body "hey we gotta carry more of that shit (glycogen stores), so we ain't gettin high on our own supply (protein)".... It isn't beneficial to deplete stores every single day (CNS overload at least), but depleting stores periodically will increase the overall storage capacity. Supply & demand
Great post, thanks!! :)
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