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How to measure caloritic spending during physical activity(9 posts)

How to measure caloritic spending during physical activityJervis
Jul 1, 2003 10:27 PM
How would I go about measuring how many calories I burn during a ride. Do most heart rate monitors do this? Maybe some other crazy apparatus that I can strap to myself? Is there some scientific formula involving my weight, heigh, heart rate, foot size, hair color, and overall liking of pumpkin pie that would enable me to tell how much I burn on a ride (there seems to be a scientific formula for everything else)? I just got into a health frenzy (a healthy one mind you, not the anorexic type) and I just wanna do it right. All suggestions very welcome.

re: How to measure caloritic spending during physical activityflying
Jul 1, 2003 11:41 PM
I don't know how accurate this is but it is interesting
forgive me for asking....divve
Jul 2, 2003 3:23 AM
...but what are "Deep fried onions with sauce" that they list? They're almost 2200 kcal for one?
perhaps a "bloomin' onion", eh mate? (nm)94Nole
Jul 2, 2003 3:34 AM
looks tasty I'm going to try one some time:) (nm)divve
Jul 2, 2003 6:55 AM
Jul 2, 2003 7:34 AM
I don't know about this thing. I like to ride fast, but I don't think I burned 2000 calories in a 2 hour ride. Is that plausible?
1000 kcal/hr?!emckee
Jul 2, 2003 10:59 AM
Doesn't sound plausible.

Other sources I have seen/read suggest that the average person burns about 400-600 kcal per hour of riding. it's still a lot, but it's not that high...

For what it's worth: I saw something on MSNBC today which noted Lance would burn about 6500 kcal on a typical TdF leg, or as much as 10,000 kcal on one of the mountain climbs.
Plus, what kind of calories are you burning?Kristin
Jul 2, 2003 1:21 PM
I posted a long rambling post to your earlier thread. I'n not sure if you saw it. I apologize, its a little wordy. In addition to asking how many calories you burn, also has what type of calories. Where your body obtains its energy when you exercise is important to how it will affect you.

Easy exercise--when you can still chat--will allow your body to use calories that are stored in fat cells (your spare tire). It takes time to process these calories, and your body has plenty of time to do the conversions during low intensity workouts. However, your body will use the energy stored in your blood sugar (glucose) first, before beginning to convert the fat stores. So its helpful to do longer, low intensity workouts when you want to lose fat.

Difficult--heavy breathing--exercise will cause your body to use mostly energy stored in muscles. Your body doesn't have time to process the fat thats stored in your pudgy areas when you are exercising hard--so it leaves them. If you run out of energy in your muscles during a hard workout, and don't eat anything, your body will begin to break down the muscle itself for energy. This is counter-productive. And if you go long enough without refueling...bonk.

Personally, I don't trust any of the calculators. There are just too many variables. And even if one was still wouldn't tell you the result.
The Polar A5 will calculate this whilecoonass
Jul 2, 2003 12:49 PM
exercising and here's a Calculator for all activities: