Does jogging work? Or do you have to be running. Also I heard, unless you are running for a good 15-20 minutes, you wont really start burning fat yet, just carbs. So if I want to burn some bellyfat, will I have to start Running for 30 mintues? Or will my 15minute jogging(run for 2min) do the job eventually.
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Jogging for fatburn
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You're correct, you need to do cardio like that for a while in order to burn fat. Depending upon the intensity of what you're doing, 20-40 min is a good estimate of the time it will take to begin burning fat since your body just burns the available sugars and carbohydrates until that point. The most important thing for burning fat is to raise your heart rate for a little while and keep moving. Intensity isn't the key, although a little more intense of a workout will burn energy a little faster. Some intensity is helpful in trying to get better at running though as it takes a certain level of intensity (sustained or burst, in your case sustained since you're running distance) to truly work your muscles.
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Burning fat is great, but any exercise is far better than no exercise. Any exercise at all will notch up your metabolism.But a real workout would be better.
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What do you mean? This person's goal is to lose excess weight it seems, and that is how you do it through exercise. Long, consistent exercise that gets your heart rate up and burns your blood sugars until it gets to the point where it will start tapping your fat stores. That is a real workout - one that's focused on fat burn. The goal of a workout is generally to raise your heart rate, work muscles, and improve yourself in through that. This way of doing long cardiovascular exercises the best way (talking about physical activity alone) to lose excess fat.The problem with talking about raising metabolism is that it doesn't have a specific meaning (incorporates two main processes of building up and breaking down). I assume you mean raising his body's processes of breaking down energy stores, and that comes from a need to break down those energy stores - hence the lengthy workouts that deplete your body of the readily available carbs/sugars, otherwise you're really not doing anything to force the body to increase it's catabolic rate.
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In a perfect world, everyone would do aerobic exercise for at least a half hour every day. I hope the OP does that, and I'd like to give him a lot of encouragement. But in the real world, people often start out gung-ho, but give up when they realize they're not willing to put in the work required by their plan. I'm just saying that, even if he decides not to go all the way, that any exercise is a lot better than no exercise; even a relatively small amount of exercise will usually have some positive effect on metabolism. Being sedentary day in and day out is not good at all for the body.
For the purposes of what I was saying, I think you're way overthinking the idea of "matabolism". I think it can be shown (although I'd have to search for the data) that, even if you exercise a relatively small amount, you increase your caloric intake to offset the calories you burn while exercising, you will still lose weight.
While it's not exactly a scientific observation, I've noticed that in myself. If I do weightlifting-type exercise, and no aerobic exercise at all, and I eat the same as I did before having exercised, I will lose weight, even as I gain muscle mass.
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Aerobics 200-250 calories
Bicycling, Stationary 250-300 calories
Bicycling, Actual 300-400 calories
Running, 5-6 mph 300-350 calories
Stair climber 200-250 calories
Swimming laps 350 calories
**Walking briskly 150-180 calories **See, Even walking briskly you burn calories.
Source: http://soyouwanna.com/site/syws/loseweight/loseweight3.html
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Sorry, I was talking idealy. I wasn't really considering the whole idea about trying to get into a new activity slowly since I don't generally think about that sort of thing. Not in the sense of worrying about quiting from not being able to keep it up at least, but maybe in warming into something I haven't been training hard in for awhile.