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Originally Posted by Moro  All you guys seem to dislike cardio before breakfast ive done it and it worked awesome for me as soon as i was done i had a shake and got that protein into my body as quick as i could this also leaves you the whole day to eat and replenish glycogen levels which are essential for lifting with intensity in the gym. The best thing about doing cardio in the morning is your body is forced to give up its fat stores as energy due to no carbs for fuel and no stored glycogen either. But i will say cardio after a workout works almost as good because you deplete you glycogen levels as you pump iron. Anyway theres something for you to think about... |
This is my whole dilema with doing cardio before you eat breakfast.
I don't know how many people wake up in the middle of the night to get a protein shake in, but I certainly don't, so when I don't have any protein for 8 hours, the top priority for me is to get protein.
How many people actually use up their entire glycogen stores in one workout? How many people don't get any carbs after they workout and until they go to sleep? How many people hit "the wall" or the point where their glycogen stores are used up completely like endurance runners/swimmers?
The only places where i've personally seen where fat is turned into the major fuel source is during ketogenic diets which take 2-3 days to get into, in runners/swimmers that switch over when they body sees an energy crisis, or steady cardio which the body will use fat for a fuel source since it doesn't have to exert large amounts of force.
And I like this little excerpt and article
Bodybuilding.com - Layne Norton - A Unique Combination Of Science And Experience Based Pre-Contest Advice.
"Cardiovascular exercise has several myths surrounding it. The largest myth being that one should perform low intensity cardio in a fasted state. The logic being that if one is in a fasted state, their glycogen levels will be low and will force their body to burn fat. Unfortunately, this idea is misguided.
While performing cardio in a fasted state may indeed increase the amount of calories that are burned from fat stores, it will also increase amino acid oxidation. Cardiovascular exercise while in a fasted state is a great way to increase cortisol release. Cortisol will liberate amino acids to produce glucose (glucose cannot be synthesized from fats) and can lead to muscle loss.
Additionally, I find it ironic that many people take such great care to time their meals so that they do not go for more than 2-3 hours without eating in order to prevent muscle loss. However, they purposefully induce this state and then perform work on top of this! "
