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Greg Petrucci Jr., Patty Freedson, Brittany Masteller, Melanna Cox, John Staudenmayer and John Sirard

and not relying on participants to put the device back on after swimming or bathing. Fossil’s activity trackers have been well received by the public as the MS was recently listed as a top-rated activity tracker ( Stables, 2018 ). A recent laboratory study showed estimates of steps/minute from a hip

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Kathryn J. DeShaw, Laura Ellingson, Yang Bai, Jeni Lansing, Maria Perez and Greg Welk

and other studies have documented greater error for assessing steps, a commonly used metric for consumer monitors ( Lee & Laurson, 2015 ). More recently, advances in monitor processing have led to the development of machine learning methods to improve the accuracy of estimates from standard research

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Hannah G. Calvert, Matthew T. Mahar, Brian Flay and Lindsey Turner

benefits, it is recommended that children aged 6–17 years accrue at least 60 minutes of moderate to vigorous PA (MVPA) per day. 9 Several studies have provided evidence that elementary-school-aged children need at least 12,000 steps daily to reach this target. 10 – 12 As a large portion of children

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Buck Time Steps

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Alan K. Bourke, Espen A. F. Ihlen and Jorunn L. Helbostad

) examined the validity to accurately detect steps at different walking speeds on a treadmill, in a population of 20 healthy adults. They demonstrated that at faster walking speeds (above 0.5 m/s and a cadence ≥69 steps/min) steps were successfully detected; however, below these limits step detection rapidly

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Kelly R. Evenson and Camden L. Spade

activity trackers to assess steps, distance, energy expenditure, speed, elevation, heart rate, and sleep. Methods Literature Search Searches of PubMed, Web of Science, and SPORTDiscus were conducted to include only full-length studies through December 31, 2018. The final search is described in

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Susan Park, Lindsay P. Toth, Paul R. Hibbing, Cary M. Springer, Andrew S. Kaplan, Mckenzie D. Feyerabend, Scott E. Crouter and David R. Bassett

Wearable activity monitors play an important role in clarifying the relationships between physical activity (PA) and health ( Wijndaele et al., 2015 ; Wright, Hall Brown, Collier, & Sandberg, 2017 ). A common output of wearable activity monitors is steps, which is an intuitive metric for measuring

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Elroy J. Aguiar, John M. Schuna Jr., Tiago V. Barreira, Emily F. Mire, Stephanie T. Broyles, Peter T. Katzmarzyk, William D. Johnson and Catrine Tudor-Locke

There is a growing interest in measuring ambulatory physical activity, reported as steps per day, with the recent 2018 Physical Activity Guidelines Advisory Committee Scientific Report ( 2018 Physical Activity Guidelines Advisory Committee, 2018 ) noting the advantages of step-based physical

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Merrill D. Funk, Cindy L. Salazar, Miriam Martinez, Jesus Gonzalez, Perla Leyva, David Bassett Jr. and Murat Karabulut

use of smartphone applications to monitor physical activity, establishing the accuracy of these applications is essential to obtain useful data to inform lifestyle choices. A recent review discussed the use of steps as a “preferred metric for quantifying physical activity” with the number of steps per

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Suguru Ando, Yumi Higuchi, Tomomi Kitagawa, Tatsunori Murakami and Emiko Todo

) is low ( Ainsworth et al., 2000 ; Blair et al., 2014 ). One of the most convenient indices for measuring the amount of physical activity is the number of steps taken ( Gardner & Poehlman, 1998 ; Paxton, Forster, Stevens-Lapsley, & Christiansen, 2018 ). Steps are a fundamental unit of human