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ERIC_ANDREW's Photo ERIC_ANDREW Posts: 274
2/8/12 10:48 A

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I have to concur that I think the 305 HR only changes the calculations for Heart Rate Zone (combined with the age you entered), not necessarily the calorie burn. The calorie burn seems to be based on weight and distance. Most of my running buddies with the 305 are women in the 120-150lb range and I very consistently get a calorie output reading of about 1.333-1.5 times their calorie output, which goes along with the fact that I weigh 75-100 pounds more than them.

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JEM0622's Photo JEM0622 Posts: 5,500
2/8/12 9:44 A

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Oh goodness. I could get a bit OCD on this one if the strap isn't effective. I did get a reading this morning on my run. Stay tuned!

Julie

BLC 9 & 10 - Crushing Cranberries; Captain, BLC 11, 12, 13 Crushing Cranberries; BLC 14 - Jade Dragons; BLC 15, 16, 17 - Onyx Outlaws, Co-Captain BLC 18 Onyx Outlaws

"There are clubs you can't belong to, neighborhoods you can't live in, schools you can't get into, but the roads are always open." - Nike


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INDYCHX's Photo INDYCHX Posts: 7,536
2/7/12 9:07 P

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I don't recall where I read this but the various HRMs companies are proprietary about how they calculate their calorie burn. So each company will give different measurements based on the way they calculate it.
I stopped using the HRM on my 305 once I read it doesn't factor your heart rate when it calculates your calories burned. So for the most part it is just using your weight and mileage to estimate your calorie burned.
I used my Polar HRM for all my workouts because it factors the HR in the calorie burned. I had a couple F4 models that gave pretty consistent results. My newer F14 seems to give me a substantially lower calorie estimate in similar conditions so I suspect they changed their calculations.
The newer CX models of the 305/405s do factor HR in your calorie burned though so you may see different results with one of those models.

Edited by: INDYCHX at: 2/9/2012 (19:54)
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JEM0622's Photo JEM0622 Posts: 5,500
2/7/12 2:08 P

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She did reply to me, so thank you! Based on my reporting today, the Garmin did pick up the strap and showed me the results. For some reason, it did not show me the details for yesterday's run. I do think I went in (after watching the YouTube video) to the configs and changed something. It may have been just the thing. Unsure, but it's working so I will take it! :)

It may seem silly, but I just need to know it so I can tell Spark what I am burning and make sure my caloric range is correct.

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Julie

BLC 9 & 10 - Crushing Cranberries; Captain, BLC 11, 12, 13 Crushing Cranberries; BLC 14 - Jade Dragons; BLC 15, 16, 17 - Onyx Outlaws, Co-Captain BLC 18 Onyx Outlaws

"There are clubs you can't belong to, neighborhoods you can't live in, schools you can't get into, but the roads are always open." - Nike


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ZORBS13's Photo ZORBS13 SparkPoints: (94,396)
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2/7/12 5:58 A

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My Polar consistently shows lower calorie counts than the Garmin.

I've never had to choose anything - just put on the strap, do my run...I can see my calorie count when I download my info to Garmin Connect.

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LAB-LOVER's Photo LAB-LOVER SparkPoints: (58,000)
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2/6/12 8:03 P

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All I know is that I dramatically different calorie readings from my old Polar and my Garmin 305, with the same user info. The Polar was higher, whereas the Garmin is closer to 100 calories per mile. I don't use it for anything but curiousity/comparison, so it doesn't matter. The Garmin IS much more accurate in terms of distance than the Polar was, so I am happy!

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SHIRE33's Photo SHIRE33 Posts: 941
2/6/12 7:13 P

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Sorry about that! But you know, Katie is good about responding. If you post on her blog or email her, she would probably answer. I know she wears the monitor at times from what she's said on her blog. Good luck! : )




“The greatest fine art of the future will be the making of a comfortable living on a small piece of land...” - Abraham Lincoln

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Do not lose courage in considering your own imperfections, but instantly set about remedying them--every day begin the task anew."
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JEM0622's Photo JEM0622 Posts: 5,500
2/6/12 5:50 P

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Lots of handy stuff, but she barely touches on the strap. I may have to call Garmin. The trouble I am having is this...

I wore a separate HRM watch and strap (and wore my Garmin - note, I had not yet tried to use the Garmin strap). The value I got for total cals burned for a 27 minute run was 192 calories.

In looking at the Garmin record, and before ever touching the strap for it, the TC calculates calories based on the initial user info (mine - even though me and my husband use the 305). When I wore the strap, I thought I would see a different reporting in the summary. I'm not.

I'm at a stage where knowing what I burn will help me tell Spark that I know what I burn...rather than it being calculated. It ties into my nutrition that is appropriate for what I'm exerting. There is such a variance between the other HRM result and the Garmin that I do not know if the strap actually functioned today.

I guess I'll keep playing with it ;)

Julie

BLC 9 & 10 - Crushing Cranberries; Captain, BLC 11, 12, 13 Crushing Cranberries; BLC 14 - Jade Dragons; BLC 15, 16, 17 - Onyx Outlaws, Co-Captain BLC 18 Onyx Outlaws

"There are clubs you can't belong to, neighborhoods you can't live in, schools you can't get into, but the roads are always open." - Nike


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SHIRE33's Photo SHIRE33 Posts: 941
2/6/12 4:02 P

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SlimKatie has great Garmin instructions today. You might check out her blog:

www.runsforcookies.com




“The greatest fine art of the future will be the making of a comfortable living on a small piece of land...” - Abraham Lincoln

"Have patience with all things, but chiefly have patience with yourself.
Do not lose courage in considering your own imperfections, but instantly set about remedying them--every day begin the task anew."
- St. Francis de Sales


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JEM0622's Photo JEM0622 Posts: 5,500
2/6/12 2:54 P

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Hi all! I decided, after having the Garmin for a couple years, to use the HRM strap. Seems a little confusing to me. I have seen the HR show up in the right corner. I watched a YouTube video on setting things up. Do I have to go into the menu of the watch and choose something every time? And do you know if the calories posted with my run details is accurate? Thanks!

Julie

BLC 9 & 10 - Crushing Cranberries; Captain, BLC 11, 12, 13 Crushing Cranberries; BLC 14 - Jade Dragons; BLC 15, 16, 17 - Onyx Outlaws, Co-Captain BLC 18 Onyx Outlaws

"There are clubs you can't belong to, neighborhoods you can't live in, schools you can't get into, but the roads are always open." - Nike


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