High Heart Rate = Burn Muscle Instead of Fat

[anthony.m.d]

High Heart Rate = Burn Muscle Instead of Fat

For anyone that wants to know if this is true, it is true ONLY if you have already burnt up your stored energy. Then you will start eating into your muscles if your heart rate is still high. Low heart rate will burn fat after you deplete your stored energy. Tony D

 

[Trek]

I'm surprised that this myth still perpetuates. Your body will use the energy source that is most easily broken down into fuel. First is the glycogen stores in the muscle and liver. When this is depleted it will breakdown fat. If you are extremelt lean like a bodybuilder then your body will break down muscles for fuel but only because there is no glycogen or fat. Your heart rate has nothing to do with the source of fuel used by your body, and that's the truth!

 

[Habib]

You're not burning muscle, your body switches back over to anaerobic energy once you get past a certain HR range. The goal I think people are confused about is training aerobically vs anaerobically. You want to ideally train both.

 

[anthony.m.d]

I'm surprised that this myth still perpetuates. Your body will use the energy source that is most easily broken down into fuel. First is the glycogen stores in the muscle and liver. When this is depleted it will breakdown fat. If you are extremelt lean like a bodybuilder then your body will break down muscles for fuel but only because there is no glycogen or fat. Your heart rate has nothing to do with the source of fuel used by your body, and that's the truth!

So unless you don't know about this, fat takes time to break down and that's why the body uses protein since it is faster. This is why you wouldn't be using fat rather muscle and you said it yourself "Your body will use the energy source that is most easily broken down into fuel" there is no fact that this is a myth, this is science. You will break down more fat on high intense cardio then low intensity as long as there is glycogen. If there is no glycogen and you keep the intensity high you will use protein as energy.

 

[anthony.m.d]

You're not burning muscle, your body switches back over to anaerobic energy once you get past a certain HR range. The goal I think people are confused about is training aerobically vs anaerobically. You want to ideally train both.

Anaerobic is only used when your not using oxygen to create energy. Yes you may switch over to anaerobic but only if there is glucose or glycogen. If there is not then you burn protein. Which is why i stated no glucose or glycogen...