Should I trust spark people or my treadmill?

SparkPoints: (31,122)
Fitness Minutes: (29,563)
Posts: 818
12/31/12 4:16 P

I wear a Polar monitor which conveys my heart rate to a Polar compatible aerobic machine. I go by the machine calorie burn.

Today, I didn't wear my monitor, but warmed up for 10 minutes on the elliptical prior to my strength training. I entered my weight, age, etc into the machine and it recorded my heart rate. The machine indicated I burned 51 calories. However, Spark says I burned 70 something calories.

I read a while ago, that regarding calorie burn, some home machines are calibrated for 150 pound people. Maybe your manual will tell you what it is.

current weight: 122.0

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SparkPoints: (42,166)
Fitness Minutes: (12,476)
Posts: 7,899
12/31/12 1:16 P

Do you enter your age, weight, and gender into your treadmill at home, and is it tracking your heart rate?

current weight: 187.4

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Posts: 829
12/31/12 12:53 P

I always go by my treadmill and enter my own. I do have a HRM/pedometer/etc and it's pretty close to my treadmill.

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Posts: 4,646
12/31/12 12:46 P

I think SP. I know members have worn a heart monitor and the monitor was closer to SP.

current weight: 250.0

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130

Posts: 11
12/31/12 12:40 P

I just speed walked on my treadmill for 40 minutes at 4mph at a 4% incline. My treadmill says i burned 294 calories, while spark people says i burned over 400. Which one is right?

current weight: 198.5

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