offo

I read that when u do cardio in the morning it burns fat becasue there are no carbs in the body..i heard ya body turns to muscle if u r hungry..so when u do excercies like jogging i tohught that u would burn muscle rather than fat because fat is more important to your body rather than muscle can some one clear this for me ...does cardio burn muscle or fat?

Clydefrog

Cardio doesn't burn muscle, but it can instigate a reduction in surplus lean tissue. It all depends on the type of cariod you do. Extended periods of strenuous cardio can put you in a catabolic state, where some muscle tissue is lost.

chrisj22

If cardio burned muscle, do you think competitive bodybuilders would be standing on stage at 200 plus pounds??

A nice amount is safe enough IMO. As long as your not running marathon's you'll be fine.

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Pscarb

Early morning aerobic exercise on an empty stomach has three major advantages over exercising later in the day.

Early in the morning before you eat, your levels of muscle and liver glycogen (stored carbohydrates) are low. If you eat dinner at 7 p.m. and you eat breakfast at 7 a.m., that's 12 hours without food. During this 12-hour overnight fast, your levels of glycogen slowly decline to provide glucose for various bodily functions that go on even while you sleep. As a result, you wake up in the morning with depleted glycogen and lower blood sugar - the optimum environment for burning fat instead of carbohydrate. How much more fat you'll burn is uncertain, but some studies have suggested that up to 300% more fat is burned when cardio is done in a fasted, glycogen-depleted state.

So how exactly does this work? It's quite simple, really. Carbohydrate (glycogen) is your body's primary and preferred energy source. When your primary fuel source is in short supply, this forces your body to tap into its secondary or reserve energy source; body fat. If you do cardio immediately after eating a meal, you'll still burn fat, but you'll burn less of it because you'll be burning off the carbohydrates you ate first. You always burn a combination of fat and carbohydrate for fuel, but depending on when you exercise, you can burn a greater proportion of fat relative to carbohydrate. If doing cardio first thing in the morning is not an option for you, then the second best time to do it would be immediately after weight training. Lifting weights is anaerobic (carbohydrate-burning) by nature, and therefore depletes muscle glycogen. That's why a post lifting cardio session has a similar effect as morning cardio on an empty stomach. The second benefit you'll get from early morning cardio sessions is what I call the "after burn" effect. When you do a cardio session in the morning, you not only burn fat during the session, but you also continue to burn fat at an accelerated rate after the workout. Why? Because an intense session of cardiovascular exercise can keep your metabolism elevated for hours after the session is over. If you do cardio at night, you will still burn fat during the session, so you definitely benefit from it. However, night time cardio fails to take advantage of the "after burn" effect because your metabolism drops like a ton of bricks as soon as you go to sleep. While you sleep, your metabolic rate is slower than any other time of the day.

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stocky24

nice1 pscarb good post

jazzmc

Hi,i do 45 minutes of heavy weights 1st thing in the morning followed by 45 minutes of swimming for cardio,i'm taking animal pump on an empty stomach before and then i have porridge and a protien drink for breakfast after,is doing heavy weights on an empty stomach defeating the purpose?.(I do this 4 times a week).

Pscarb

thats nice....

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jazzmc

Thats nice... ,as in good for you,or as in thats a good way of working out to gain muscle and lose fat?.

Pscarb

As in start your own thread giving more details about yourself as what you have wrote tells us nothing about your metabolism, Complete diet

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