Identifying bedrest using waist-worn triaxial accelerometers in preschool children
نویسندگان
چکیده
منابع مشابه
Validation of uniaxial and triaxial accelerometers for the assessment of physical activity in preschool children.
PURPOSE Given the unique physical activity (PA) patterns of preschoolers, wearable electronic devices for quantitative assessment of physical activity require validation in this population. Study objective was to validate uniaxial and triaxial accelerometers in preschoolers. METHODS Room calorimetry was performed over 3 hours in 64 preschoolers, wearing Actical, Actiheart, and RT3 acceleromet...
متن کاملSeparating Bedtime Rest from Activity Using Waist or Wrist-Worn Accelerometers in Youth
Recent interest in sedentary behavior and technological advances expanded use of watch-size accelerometers for continuous monitoring of physical activity (PA) over extended periods (e.g., 24 h/day for 1 week) in studies conducted in natural living environment. This approach necessitates the development of new methods separating bedtime rest and activity periods from the accelerometer recordings...
متن کاملIdentifying bedrest using 24-h waist or wrist accelerometry in adults
OBJECTIVES To adapt and refine a previously-developed youth-specific algorithm to identify bedrest for use in adults. The algorithm is based on using an automated decision tree (DT) analysis of accelerometry data. DESIGN Healthy adults (n = 141, 85 females, 19-69 years-old) wore accelerometers on the waist, with a subset also wearing accelerometers on the dominant wrist (n = 45). Participants...
متن کاملComparison of epoch and uniaxial versus triaxial accelerometers in the measurement of physical activity in preschool children: a validation study.
The objectives of this study were to explore whether triaxial is more accurate than uniaxial accelerometry and whether shorter sampling periods (epochs) are more accurate than longer epochs. Physical activity data from uniaxial and triaxial (RT3) devices were collected in 1-s epochs from 31 preschool children (15 males, 16 females, 4.4 ± 0.8 yrs) who were videoed while they engaged in 1-hr of f...
متن کاملTriaxial Monolithic Piezoresistive Accelerometers in Foundry CMOS
1996 ii The thesis of Brett Alan Warneke is approved. Figure 3-7 Cross-sectional diagram of an aluminum trace running between oxide plates and contacting a polysilicon piezoresistor. The oxide and first metal overetch into the silicon substrate causes the trace Figure 3-8 SEM of a Skeleton Crew accelerometer with bond wires providing 9.6 µgm of additional proof mass. The plate has been bent up ...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2021
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0246055