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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

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Old 12-09-07, 07:39 PM   #1
kls1891
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Calories burned on the trainer?

Is there a calculator somewhere that can tell me how many calories I've burned on the trainer? (given a speed, time, and weight)

I need some incentive to keep riding this damn thing in the winter...
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Old 12-09-07, 07:47 PM   #2
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Old 12-09-07, 07:51 PM   #3
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http://www.revolutionhealth.com/calc...alories-burned

try this
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Old 12-09-07, 07:55 PM   #4
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Pretty good, except you can only select a speed range and it only goes up to 16. Anything more precise? Though this is probably gets me close enough.
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Old 12-09-07, 08:00 PM   #5
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Try this one...

http://www.kreuzotter.de/english/espeed.htm

But really meant for road rides not really for the trainer...
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Old 12-09-07, 08:01 PM   #6
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The difference between trainer enjoyment and pure agony for me are Spinervals DVD's. A calorie calculator won't help. I even have a Powertap to measure power, calories, speed, cadence, etc. and it alone won't make the trainer tolerable without the training DVD's. I did the 3 hour Tough Love DVD on Sat and the time went pretty fast.
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Old 12-09-07, 08:01 PM   #7
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wow!
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Old 12-09-07, 08:02 PM   #8
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"Speed" on a trainer is irrelevant since you can dial the resistance up or down. You need to look for a formula based on your power output or at least your heart rate.
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Old 12-09-07, 08:04 PM   #9
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Check out the links under Health and Nutrition on my Links page. I think most of them have an option for stationary bicycles when calculating how active you are or how many calories you're burning.

But I'd guess it's somewhere in the neighborhood of 500 calories per hour, give or take a bit. Same as when you ride outside.

http://www.machka.net/links.htm
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Old 12-09-07, 08:31 PM   #10
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But I'd guess it's somewhere in the neighborhood of 500 calories per hour, give or take a bit. Same as when you ride outside.
Due to heat and general trainer-hate, I burn about 80-90% of the calories I would outside. For example, an hour long arse-beating outside might net me 1050+ calories, per the powertap. An arse-beating indoors might be 875.

An hour of Z2-3ish gets me 750 outdoors, and 675 indoors...
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Old 12-10-07, 06:07 PM   #11
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Originally Posted by kls1891 View Post
Is there a calculator somewhere that can tell me how many calories I've burned on the trainer? (given a speed, time, and weight)

I need some incentive to keep riding this damn thing in the winter...
I would guess you are burning between 400 and 1200 calories per hour

As was mentioned, you need to use a formula based on your actual or estimated power output. For example, a Cat 2 level rider on a 3 hour tempo ride might average 275 w and burn around 3000 calories, while a Cat 5 level rider might average 160 w and burn around 1600 calories.

http://www.kreuzotter.de/english/espeed.htm
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Old 12-10-07, 06:15 PM   #12
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http://www.nutristrategy.com/activitylist.htm
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Old 12-10-07, 06:36 PM   #13
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www.bikejournal.com ...will track all your rides...on the road and on the trainer, and keep them separate(so you can track miles on the road, and hours on the trainer, or however you want to do it)...it has a calorie counter as well...I think it's a great site....oh yeah, it's free.
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Old 12-10-07, 07:15 PM   #14
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3 hours on an indoor trainer? You win the trainer ironman award!

Quote:
Originally Posted by jrobe View Post
The difference between trainer enjoyment and pure agony for me are Spinervals DVD's. A calorie calculator won't help. I even have a Powertap to measure power, calories, speed, cadence, etc. and it alone won't make the trainer tolerable without the training DVD's. I did the 3 hour Tough Love DVD on Sat and the time went pretty fast.
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Old 12-11-07, 04:22 AM   #15
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3 hours on an indoor trainer? You win the trainer ironman award!
What do I win for 3 hrs on the trainer with no radio, tv, cd, mp3, etc?
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Old 12-11-07, 07:05 AM   #16
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What do I win for 3 hrs on the trainer with no radio, tv, cd, mp3, etc?
A mental health evaluation.
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Old 12-11-07, 07:15 AM   #17
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What do I win for 3 hrs on the trainer with no radio, tv, cd, mp3, etc?
Being asleep doesn't count.
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Old 12-11-07, 08:48 AM   #18
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"Speed" on a trainer is irrelevant since you can dial the resistance up or down. You need to look for a formula based on your power output or at least your heart rate.
+1. Ideally you need a power meter. the power meter will tell you the kilojoules of energy expended, which for general purposes is equivalent to dietary calories for practical purposes (when the efficiency of converting dietary calories to energy is factored in.)

If you don't have a power meter, the next best thing would be finding a power profile for your trainer that will tell you power in watts for a given speed on the trainer. Then you can calculate your calories on line from average watts and time.

Unfortunately, in my experience, the various on line calorie counters for stationary cycling are woefully inaccurate. (compared to hard data from a power tap.)

Failing all that, an hour at an endurance pace is likely around 400-600 calories. An hour at close to time tiral effort is around a thousand calories. YMMV.
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Old 12-11-07, 09:10 AM   #19
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A decent heart rate monitor would give you calories burned based on the amount of work (your HR) you are doing.
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Old 12-11-07, 09:16 AM   #20
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A decent heart rate monitor would give you calories burned based on the amount of work (your HR) you are doing.
In my experience they aren't even close. It's a very rough extrapolation at best. My HRM overstates calories dramatically, compared to a powertap, which is actually measuring energy expended (and only makes one extrapolation, based on the efficiency of converting dietary calories to energy at the hub.)

On the same ride my HRM can say 5000 calories burned when the PT says 2900.

And it would be even worse on a trainer indoors because of Heart rate drift from the heat on the trainer.
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