Burning 1,000 Calories in an hour

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2011-09-30 2:41 AM


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Subject: Burning 1,000 Calories in an hour
- I am burning 1,000 calories an hour at my weight (101kg) & avg heart rate sticks in the 150's (fine). As you can only input about 200-300 calories an hour - will I run out of energy over the 12+ hours it will take me to finish WA Ironman?  Thanks

2011-09-30 8:22 AM
in reply to: #3706055

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Subject: RE: Burning 1,000 Calories in an hour

The Ironman Distance section may be able to help better as I do not know if they check this specifically.  But usually people run a deficit during races.

My only advice is figure out nutrition during your long training sessions.  Smaller guys look at 250-300 but I assume you may be looking at 300-350 if not more.  I know the body has a limit on what it can absorb in a given period but I do not know exactly what that is.  Good luck!

2011-10-01 7:16 PM
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Subject: RE: Burning 1,000 Calories in an hour

Thanks for the advice.

I did get my calories slightly wrong, I am burning about half that but yes will still be in major deficit.  Have a bit of fat the body can burn if that is a benefit  

2011-10-06 2:53 PM
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Subject: RE: Burning 1,000 Calories in an hour

Just remember.  You are not standing at the starting line with 0 Burnable calories in your system.  If you are then UR DOIN IT RONG.

Generally, on race day, you are burning the calories consumed and stored in the day(s) before.  It is important to continue consuming calories during the race to keep immediate energy available for whenever you need it and to assist with recovery.  But the majority of calories burned is from stored energy deposits.

 

2011-10-08 10:57 AM
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Subject: RE: Burning 1,000 Calories in an hour
lifejustice - 2011-10-06 2:53 PM

Just remember.  You are not standing at the starting line with 0 Burnable calories in your system.  If you are then UR DOIN IT RONG.

Generally, on race day, you are burning the calories consumed and stored in the day(s) before.  It is important to continue consuming calories during the race to keep immediate energy available for whenever you need it and to assist with recovery.  But the majority of calories burned is from stored energy deposits.

 

 

+1

This is why people start carbo cramming on the Wednesday before the race.  Its important to top off your glycogen stores before a race.  

I was just reading an ad from a company in Lava magazine that suggested, during exercise, you should consume 2 calories per pound of body weight per hour.  For me, at 200'ish pounds, that's be 400 cal/hr... seems like a lot to me but I do have a year to figure it out.

 

2011-10-08 9:39 PM
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Subject: RE: Burning 1,000 Calories in an hour
WI_tri_guy - 2011-10-08 10:57 AM
lifejustice - 2011-10-06 2:53 PM

.... 

 

+1

This is why people start carbo cramming on the Wednesday before the race.  Its important to top off your glycogen stores before a race.  

I was just reading an ad from a company in Lava magazine that suggested, during exercise, you should consume 2 calories per pound of body weight per hour.  For me, at 200'ish pounds, that's be 400 cal/hr... seems like a lot to me but I do have a year to figure it out.

 

Practice, Practice...  every type of "calorie" will be different and depending on your level of exertion etc, the amount you can take in will change.  I am in that 200 range and found that with what works for me, 320 was about all I could do without things going south...   But it took months to figure that out... now I don't vary from that (on purpose anyway)...  Occasionally, I'll try to add something or shift it every so slightly, but nothing major without months before an 'A' race

2011-10-11 1:33 PM
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Subject: RE: Burning 1,000 Calories in an hour
You have limits as to what you can absorb. People may say that they take 400 cho, but there is no way they are absorbing it 95% of the time. Generally it is worse to take in too many calories as opposed to taking in not enough. You end up blowing up like a tick and your gut will shut down and it can lead to dehydration.

Couple of rules thumb:

A good starting point is 2 calories per pound of lean body weight. So if you are 180 lbs with 15% body fat; 180 lbs - 27 lbs fat = 153 lean x 2 calories = 306 calories per hour

Max absorbtion rates for the same sized athlete:

Maltodextrine products around 240 calories per hour
Blended carb drinks around 310 calories

Generally it is a good idea to ignore the people that say they take a huge volume of calories. The science says we all have limits. If you go over those limits you risk overloading your system and ruining your race.
2011-10-12 8:31 AM
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Subject: RE: Burning 1,000 Calories in an hour

infinIT 1 - 2011-10-11 1:33 PM You have limits as to what you can absorb. People may say that they take 400 cho, but there is no way they are absorbing it 95% of the time. Generally it is worse to take in too many calories as opposed to taking in not enough. You end up blowing up like a tick and your gut will shut down and it can lead to dehydration. Couple of rules thumb: A good starting point is 2 calories per pound of lean body weight. So if you are 180 lbs with 15% body fat; 180 lbs - 27 lbs fat = 153 lean x 2 calories = 306 calories per hour Max absorbtion rates for the same sized athlete: Maltodextrine products around 240 calories per hour Blended carb drinks around 310 calories Generally it is a good idea to ignore the people that say they take a huge volume of calories. The science says we all have limits. If you go over those limits you risk overloading your system and ruining your race.

 

Thanks Michael,  that's the best answer I've gotten yet!  And its funny you'd use 180 as an example, that's my goal "race weight"

2011-10-12 10:01 AM
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Subject: RE: Burning 1,000 Calories in an hour
WI_tri_guy - 2011-10-08 5:57 PM

 I was just reading an ad from a company in Lava magazine that suggested, during exercise, you should consume 2 calories per pound of body weight per hour.

Both male and female?



Edited by Gladiador 2011-10-12 10:10 AM
2011-10-12 11:02 AM
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Subject: RE: Burning 1,000 Calories in an hour
Gladiador - 2011-10-12 10:01 AM

WI_tri_guy - 2011-10-08 5:57 PM

 I was just reading an ad from a company in Lava magazine that suggested, during exercise, you should consume 2 calories per pound of body weight per hour.

Both male and female?



That is just a starting point. I like to use 2 calories per pound of lean body weight. Ladies have a higher % of body fat naturally so they generally take in less calories than a guy with = weight. That is consistant with what we see working with athletes, the ladies need less and do better with less calories (and electrolyte) than the guys.

2 calories per pound of weight is too high. If you are 180 that means 360 per hour. Most people cannot physically process that ammount and it will lead to bad things.

Edited by infinIT 1 2011-10-12 11:04 AM
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