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caloric
I have a Cateye bike computer, Velo8, on my training setup, that gives
Caloric reading. I am trying to find a constant that I can apply to the same reading from my gps mileage reading. The first three reading are miles. Below is days on my trainer at the same time, one hour. Course Trainer Trainer Trainer Trainer Trainer Max 24.20 17.00 25.50 28.50 29.40 Average 13.90 14.60 14.20 16.80 18.00 Distance 13.95 14.63 14.31 16.93 18.00 Mov Time 1.00 1.00 1.00 1.00 1.00 Caloric 330.09 362.00 346.70 547.80 629.00 -- www.billcotton.com |
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#2
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caloric
On Sat, 15 Dec 2007 10:44:13 -0500, "Bill Cotton"
wrote: I have a Cateye bike computer, Velo8, on my training setup, that gives Caloric reading. I am trying to find a constant that I can apply to the same reading from my gps mileage reading. The first three reading are miles. Below is days on my trainer at the same time, one hour. Course Trainer Trainer Trainer Trainer Trainer Max 24.20 17.00 25.50 28.50 29.40 Average 13.90 14.60 14.20 16.80 18.00 Distance 13.95 14.63 14.31 16.93 18.00 Mov Time 1.00 1.00 1.00 1.00 1.00 Caloric 330.09 362.00 346.70 547.80 629.00 Dear Bill, The right-hand article should illuminate the matter: http://cdl.library.cornell.edu/cgi-b...S1821-0001-456 I assume that nothing has changed since 1869. :-) Cheers, Carl Fogel |
#3
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caloric
On Dec 15, 7:00 pm, wrote:
The right-hand article should illuminate the matter: http://cdl.library.cornell.edu/cgi-b...rames=1&coll=m... I assume that nothing has changed since 1869. A modern rule of thumb for walking or running on firm level ground is 1 kcal/kg/km. |
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caloric
On Dec 15, 9:00 pm, wrote:
More seriously than my link to 1869 data about velocipedes, Bill's question is how things are figured when an hour at ~18 mph on the trainer is said to take about twice as many calories as the same hour at ~14 mph. Bill's computer is probably lying to him when he's using it on a trainer. http://www.geocities.com/almost_fast/trainerpower/ |
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caloric
wrote in message ... On Dec 15, 9:00 pm, wrote: More seriously than my link to 1869 data about velocipedes, Bill's question is how things are figured when an hour at ~18 mph on the trainer is said to take about twice as many calories as the same hour at ~14 mph. Bill's computer is probably lying to him when he's using it on a trainer. http://www.geocities.com/almost_fast/trainerpower/ I agree that my Cateye Velo8 cyclecomputer is lying as to the actually calories, however, I like to know what constant(s) is being use in its computer. I want to use such a constant in by free bikelog that I make available each year. http://www.billcotton.com/my_training.htm possibly relating altitude gains (that the gps averages out), into the mix. |
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caloric
In article ,
"Bill Cotton" wrote: I have a Cateye bike computer, Velo8, on my training setup, that gives Caloric reading. I am trying to find a constant that I can apply to the same reading from my gps mileage reading. The first three reading are miles. Below is days on my trainer at the same time, one hour. Course Trainer Trainer Trainer Trainer Trainer Max 24.20 17.00 25.50 28.50 29.40 Average 13.90 14.60 14.20 16.80 18.00 Distance 13.95 14.63 14.31 16.93 18.00 Mov Time 1.00 1.00 1.00 1.00 1.00 Caloric 330.09 362.00 346.70 547.80 629.00 Drag is not a constant, we don't know how the device samples the velocity, and it is meaningless to make your calculations without taking the wind into account. -- My personal UDP list: 127.0.0.1, 4ax.com, buzzardnews.com, googlegroups.com, heapnode.com, localhost, ntli.net, teranews.com, vif.com, x-privat.org |
#8
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caloric
On Dec 16, 5:48 am, "Bill Cotton" wrote:
wrote in message ... On Dec 15, 9:00 pm, wrote: More seriously than my link to 1869 data about velocipedes, Bill's question is how things are figured when an hour at ~18 mph on the trainer is said to take about twice as many calories as the same hour at ~14 mph. Bill's computer is probably lying to him when he's using it on a trainer. http://www.geocities.com/almost_fast/trainerpower/ I agree that my Cateye Velo8 cyclecomputer is lying as to the actually calories, however, I like to know what constant(s) is being use in its computer. I want to use such a constant in by free bikelog that I make available each year.http://www.billcotton.com/my_training.htmpossibly relating altitude gains (that the gps averages out), into the mix. The Cateye Velo 8 appears to use speed as its basis for calorie consumption, so it must be calculating calories as if all drag was aerodynamic drag (i.e., flat ground and no wind). Accordingly, you might be able to figure out the implied CdA (mass isn't going to matter much) by using something like www.analyticcycling.com. Because most trainers don't have the same drag characteristics as a rider moving through still air, the calorie estimates for trainer rides will be off. |
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