Accurate Calories??
linjoy426
Posts: 3 Member
Hello. I have a question about my new fit bit. I have been using the Nike+ running app on my phone for years along with a galaxy gear fit. They have always been within 5 to 10 calories off from each other at the end of a run. I am 5'4 and 110 pounds. I usually run 30 min and during that time, I run about 3.5 or more miles. My gear fit always said I was burning around 285-300 calories during this time and the Nike+ app I have on during my runs at the same time as my gear fit is always within 5 to 10 calories of this. I just bought a fit bit and the calories burned don't seem right to me. It is at least 100 calories LOWER than my gear fit and nike app. So which one is correct?? I find it very hard to believe that running 7.5 mph or more for 30 minutes only burns 205 calories!!! I have to say I trust the other two devices more seeming as they are very close in range and my fitbit is so far off compared to them. I thought fitbits were supposed to be extremely accurate though. I'm confused. Anyone else experience this? It feels very discouraging to know I'm burning such fewer calories than I had thought for all these years!
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Replies
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I used this calculator, and it came to 291 calories for a 30 minute run. If i entered the numbers correctly..
http://www.runnersworld.com/fitness-calculators/calories-burned-calculator
Give it a go and see what it gives you.
My fitbit overestimates my burns. I know it would be nice if they were all 100% accurate, but i would rather get an underestimate than an overage.
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Couple of things i can suggest. are you wearing the device properly on your wrist. and have you set your stride length for both walking and running in the fitbit app.
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You didn't mention what device - always required info when discussing them since the means of calorie estimates varies between them.
If HRM device - and you just bought, it's likely still adjusting and figuring out how fit you are.
Right now your likely fit lower HR while running is seen as not being a hard workout - therefore low calorie burn.
Once it sees your resting HR over time, and sees how much you work out, it'll know you are fitter than it thought, so the lower HR means a higher calorie burn.
If this is non-HR device, then steps seen accurately, and as commented above - distance running, is the bearing.
You compared a known distance and counted steps to compare to device, say 100 right foot strikes, and that should show as increase of 200 on device.
And extremely accurate?
You are also assuming that the other devices are right, and they are likely going off distance (if accurate) and weight/pace - which actually is pretty accurate for level running up to certain speed.
http://community.myfitnesspal.com/en/discussion/774337/how-to-test-hrm-for-how-accurate-calorie-burn-is/p10
