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Does anyone else use a Garmin Forerunner with Firstbeat heartrate Technology to measure calorie expenditure?

by (7302)
Updated about 8 hours ago
Created July 13, 2012 at 10:14 PM

Does anyone else use a Garmin Forerunner with Firstbeat heartrate Technology to measure calorie expenditure?

Or any other HRM to measure their workouts? If so what kind of numbers are you showing for HIIT training, Crossfit, etc?

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26182 · July 16, 2012 at 1:56 PM

My point was it doesn't show a difference because the Forerunner 305 is not sophisticated enough to tune calories to effort. It's based solely on distance. See below: Calories by Distance and Duration http://postimage.org/image/o9w5f5vq9/ As you can see the calories and distance are almost a perfect match (r2 = .98). Calories by Intensity and Max Heart Rate http://postimage.org/image/imzshot7l/ While more of the Track workouts (or HIIT) are on the upper level of max heart rate, there is no correlation to calorie burn. This is based on 305's calculation, not actual calories

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7302 · July 16, 2012 at 12:37 AM

Just curious what kind of calorie expenditure it showed.

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26182 · July 15, 2012 at 11:58 PM

I have a 305. I sent into a firstbeat place in DC, and they told me the 305 wasn't capable of "sophisticated calorie configuration"

I used to use my garmin heart rate monitor a lot -- I used to do a lot of cardio -- to ensure my tempo runs were above 85% Max and my long runs were below 70% Max. I could typically get above 95% Max on sprints or in races.

C45d7e96acd83d3a6f58193dbc140e86
7302 · July 16, 2012 at 12:37 AM

Just curious what kind of calorie expenditure it showed.

3ce6a0d24be025e2f2af534545bdd1d7
26182 · July 16, 2012 at 1:56 PM

My point was it doesn't show a difference because the Forerunner 305 is not sophisticated enough to tune calories to effort. It's based solely on distance. See below: Calories by Distance and Duration http://postimage.org/image/o9w5f5vq9/ As you can see the calories and distance are almost a perfect match (r2 = .98). Calories by Intensity and Max Heart Rate http://postimage.org/image/imzshot7l/ While more of the Track workouts (or HIIT) are on the upper level of max heart rate, there is no correlation to calorie burn. This is based on 305's calculation, not actual calories

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