Can I do too much cardio?

Old 09-01-2011, 06:45 PM
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Originally Posted by tandoorichicken View Post

It's actually true that walking and running for equal distance will burn equal amounts of fat. When you're walking (as in exercise, not strolling or window shopping), you don't need fast energy and the body preferentially burns fat. When you run, the body uses more sugar and less fat. The net result on fat loss is nearly identical.
There is the stipulation... I was like running 30min. burns way more then walking 30min. but if you go the same distance then I guess it would be closer

I've always heard the magical "fat burning zone" is not accurate at all, or that it doesn't apply to everyone, and that starvation mode is a myth
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Old 09-01-2011, 07:48 PM
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The fat burning zone is something of a myth. It is calculated to be the zone (heart rate) whereby most of the calories you use are drawn from fat.

It is not the zone whereby you burn the most calories. At higher rates of exercise, you burn more calories, including more fat calories.

I have read that exercising before eating is a bad thing, in that the body senses it is at risk (no food) so draws on glycogen and lean muscle mass while protecting its critical fat reserves. Better to eat say even half a banana, then exercise.

On walk Vs run over the same distance. Looking at the activity calculator here, which I find correlates accurately to the data on my rowing machine, a 4 mile walk at 4 mph burns 424 calories, while a 4 mile jog at 6 mph burns 565calories, so not the same deal at all.

On over-doing cardio: if you kept your heart rate to around 65% maximum (start with 220 - your age in years as your maximum) you would be safe to keep going longer than the OP reports. But you need a heart monitor (around ~$50).
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Old 12-20-2011, 11:58 PM
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As with most simple questions, there is no simple answer!

It really depends on the intensity of the cardio, and your goals. If you are aiming to loose weight, and do moderate intensity cardio (i.e. where you are working at 65% of your max heart rate) you can do a lot before you do 'too much'. If you are aiming to improve your cardiovascular system and workout up in the 80-85% (or higher) you can easily do too much, and 'overtrain'.

A few years ago I was in your current position. The best advice I was given....'buy a heart rate monitor'. I was able to monitor my 'real' effort - was I working hard, or just thinking I was working hard.

Last edited by gerrymcd; 12-21-2011 at 12:01 AM.
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Old 01-28-2012, 03:11 PM
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Originally Posted by savealotman1 View Post
Yo may feel you are not getting the results quickly enough. My advice to you is remember you didn't put all this weight on in a few short months and it will take as long to take it off. Patience is the key if you continue to eat properly and do cardio you will see the results. You can overtrain and tax your body to the point of a "starvation mode" and tha is not where you want to put yourself. take it slow have patience and you will win the battle.
Life is a marathon and not a sprint!!! Remember that
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