Morning Cardio on Empty stomach do burn fat or muscle?

[JuiceKing49]

Does morning cardio with an ECA stack burn fat or lean muscle?? i just read this on another board and i had an understanding that Morning cardio on and empy stomach burn fat storage not muscle???

Also on sust/EQ.

JK

 

[sawastea]

Very debatable...

If you keep it to moderate intensity, at roughly 60-75% MHR, you can preserve muscle mass. Just eat post-exercise, protein/CHO foods

 

[sweed]

I;ve read if you have a protein shake before morning cardio, this will help preserve the muscle and shread fat.

 

[Bulldog_10]

There have been like 100 threads on this topic in the last few weeks. Do a search and you'll find a few I'm sure.

Short answer, fat loss and muscle loss go hand in hand. The same hormones will be stimulated (cortisol) which breaks down both fat and muscle. This is why people say that you can't bulk and cut at the same time. Catabolism is catabolism, regardless of the molecules being broken down (fat or muscle).

 

[Cypptanon]

I have just completed a detailed post on this subject at thread "AM Cardio.....reality"

The research is at:
http://www.gssiweb.com/reflib/refs/32/d000000020000006d.cfm?pid=38&CFID=299487&CFTOKEN=48197843

The main point is:

DIETARY CARBOHYDRATE INFLUENCES FAT OXIDATION DURING EXERCISE

Eating Carbohydrate During the Hours Before Exercise

Fat oxidation during exercise is very sensitive to the interval between eating carbohydrate and the onset of exercise and to the duration of the exercise. This is due in part to the elevation in plasma insulin in response to the carbohydrate meal and the resultant inhibition of lipolysis in adipose tissues, thus reducing the mobilization of FFA into the plasma. This effect is evident for at least 4 h after eating 140 g of carbohydrate that has a high glycemic index (Montain et al., 1991). Under these conditions, the carbohydrate meal reduces both total fat oxidation and plasma FFA concentration during the first 50 min of moderate-intensity exercise. However, this suppression of fat oxidation is reversed as the duration of exercise is increased; after 100 min of exercise, the rate of fat oxidation is similar, whether or not carbohydrate was eaten before exercise. It appears that the body relies heavily on carbohydrate and less on fat when people have eaten carbohydrate during the previous few hours, and therefore carbohydrate is preferred when it is available. It is likely that insulin plays a role in regulating the mixture of carbohydrate and fat oxidized during exercise.


Cyp

 

[JuiceKing49]

I have just completed a detailed post on this subject at thread "AM Cardio.....reality"

The research is at:
http://www.gssiweb.com/reflib/refs/32/d000000020000006d.cfm?pid=38&CFID=299487&CFTOKEN=48197843

The main point is:

DIETARY CARBOHYDRATE INFLUENCES FAT OXIDATION DURING EXERCISE

Eating Carbohydrate During the Hours Before Exercise

Fat oxidation during exercise is very sensitive to the interval between eating carbohydrate and the onset of exercise and to the duration of the exercise. This is due in part to the elevation in plasma insulin in response to the carbohydrate meal and the resultant inhibition of lipolysis in adipose tissues, thus reducing the mobilization of FFA into the plasma. This effect is evident for at least 4 h after eating 140 g of carbohydrate that has a high glycemic index (Montain et al., 1991). Under these conditions, the carbohydrate meal reduces both total fat oxidation and plasma FFA concentration during the first 50 min of moderate-intensity exercise. However, this suppression of fat oxidation is reversed as the duration of exercise is increased; after 100 min of exercise, the rate of fat oxidation is similar, whether or not carbohydrate was eaten before exercise. It appears that the body relies heavily on carbohydrate and less on fat when people have eaten carbohydrate during the previous few hours, and therefore carbohydrate is preferred when it is available. It is likely that insulin plays a role in regulating the mixture of carbohydrate and fat oxidized during exercise.


Cyp

Guys thanks for the help.

Cyp,

Thanks bro, but I can't seem to grasp what your saying... if you don't mind can you break it down in dumbass terms for me... not fully understanding it.

JK

 

[BIC]

For Me Too Lol

 

[RADAR]

I for one swear by mornin cardio after an all night fast--it really dips into the fat stores.
Regardless what anyone says carbs before cardio will be burnt as fuel thats why it need to be done on an empty stomach.


RADAR

 

[The_first_athlete]

WHat seemd to work for me was 40min of cardio (read it takes 20min just to activate fat as fuel) after the reg 40min of weights. I also believe 25g of whey helps for/during any type of excersize, its not like its expensive to have some pro before workouts. Use glutamine (b4 and after) along.

 

[Bulldog_10]

I for one swear by mornin cardio after an all night fast--it really dips into the fat stores.
Regardless what anyone says carbs before cardio will be burnt as fuel thats why it need to be done on an empty stomach.


RADAR

Too bad it dips into the muscle stores just as much.

Of course the carbs will be used for energy, but that means those carbs you're burning won't be stored as fat. It all comes down to calories, fuck substrate utilization, fuck time of day, fuck intensity...none of that matters. What matters is that you burn the extra calories.

In the morning your body is in a very catabolic state, why compound this by doing cardio at that time? Sure, you'll burn more fat...but you'll also burn a shitload of muscle. And when you eat after, you'll use that energy to store the fat and protein you just lost. It all evens out in the end...calories are what count.