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Research Letter
May 2016

Accuracy of Wearable Devices for Estimating Total Energy ExpenditureComparison With Metabolic Chamber and Doubly Labeled Water Method

Author Affiliations
  • 1Department of Health Promotion and Exercise, National Institute of Health and Nutrition, NIBIOHN, Tokyo, Japan
  • 2Faculty of Sport Sciences, Waseda University, Saitama, Japan
  • 3Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
JAMA Intern Med. 2016;176(5):702-703. doi:10.1001/jamainternmed.2016.0152

Accurate estimation of energy expenditure is a key element in determining the relationships between aspects of human behavior, physical activity, and overall health.1,2 Although wearable devices for estimating energy expenditure are becoming increasingly popular, there is little evidence regarding their validity.3,4 This study was performed to examine the validity of total energy expenditure estimates made by several wearable devices compared with gold standard measurements for a standardized day (metabolic chamber method) and free-living days (doubly labeled water [DLW] method).

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