Fitbit accurate in measuring energy expenditure: AHA presentation

click to enlargeThe current judgment on commercial fitness monitors is that they are worthwhile directionally, but accurate–not so much [TTA 10 May 14]. This may be changing, albeit on a specific, non-clinical measurement. A Columbia University Medical Center (New York, NY) team tested the Fitbit One and Fitbit Flex for tracking energy expenditure during treadmill walking and running exercise, versus energy expenditure assessed by indirect calorimetry, and found themto be valid and reliable devices. Correlation between measurements was 0.95 – 0.97. These devices were interestingly placed on wrists and hips; perhaps a user can enlighten me.  Poster presentation/Abstract MP11 published in the American Heart Association’s journal, Circulation.

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