Is this true? ...i found it on a website!?
Question:Dear Yahoo!:
Do I burn the same amount of calories walking as I do running?
That depends -- are you exercising for a set distance or a set time? If you want to cover three miles running or walking and burn as many calories as possible, walking is the way to go. However, if you have an hour set aside to either walk or run, running will burn more calories.
We'd like to tell you we tested this out, but we're born cube jockeys, so we found a page from WebMD instead. The esteemed Dr. Dean Ornish explains that when you run, you burn mostly sugar and carbohydrates. However, when you walk for a long enough distance (walking to the refrigerator doesn't count), "it gives your metabolism time to switch from burning carbohydrates to burning fat." The page goes on to explain that, like a lot of bodily chores, walking is most effective when it's done consistently (kind of like wearing deodorant).
Answers:
What percentage of the world, in your estimation, can run a 5 minute mile?
Basically you will burn the same calories over the same distance whether you run or walk. The fat burning part does not come into play until long exercise periods. If you are talking about 3 miles you are not getting into that energy system regardless of walking or running. You will burn carbohydrates as long as they are available since that is more efficient for the body to use.Why does my left shin burn while I run?
Basically true.The amount of calories you burn is the amount of work you do. Work (for walking/running purposes) is solely dependant on your weight and how far you move. Therefore, it doesn't matter if you walk or run the same distance. However, if you run, you should travel further in the same amount of time. Thus, you would burn more calories timewise running.
Is 30 seconds a good time for...?
OK so im in school and just leaned this, if you are going a mile and u walk u burn the same amount of calories as if u ran, but u get done quicker running and have time to do another mile!How Long Does it Usually Take to Train for a Marathon?
its truuuuue ooooh.(kel loves orange soda!)
A naive physicist might (incorrectly) claim that the energy burned (in units of calories or any other) is dependent only on the distance that it takes you to go there. So, whether you're running or walking, the amount of work spent is exactly the same. This is what you are taught in high school or low-level college freshman physics.
As it turns out, the energy spent is also dependent on the efficiency of the process (I will not bore you with the equations, just trust me :) ). As the "esteemed Dr. Dean Ornish" explains, when you run you burn mostly carbohydrates, which are very efficiently turned into energy by the human body (and many other organisms). There is very little waste in energy here you end up burning a lot of calories.
When you are walking for a long time, the human body starts realizing that it does not need to burn energy as quickly as possible. So, it starts to burn fat, which is an inefficient process, and you end up burning less calories.
While there is certainly a difference, I can assure you that the difference is not that big. You can check by using a calorie calculator (see link below). For example, if you are 150 lbs., you walk at a 30 min/mile pace for 1 hour (2 miles total), you burn 209 calories. If you run at a 7 min/mile pace for 14 minutes (again, 2 miles total), you burn 218 calories.
I don't know about you, but a difference of 9 calories every two miles is not quite enough to go back to your high school physics teacher and complain.. :)
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