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5 Results for: "Featured"

Accelerometer Data Collection and Processing Criteria to Assess Physical Activity and Other Outcomes: A Systematic Review and Practical Considerations

  • Published on March 16, 2017

Background: Accelerometers are widely used to measure sedentary time, physical activity, physical activity energy expenditure (PAEE), and sleep-related behaviors, with the ActiGraph being the most frequently used brand by researchers. However, data collection and processing criteria have evolved in a myriad of ways out of the need to answer unique ...


Ability of Thigh-Worn Actigraph and activPAL Monitors to Classify Posture and Motion

  • Published on Sept. 8, 2014

Purpose: This study compared sitting, standing, and stepping classifications from thigh-worn Actigraph and activPAL monitors under laboratory and free-living conditions. Methods: Adults wore both monitors on the right thigh while performing six sitting, two standing, nine stepping, one cycling activity, and writing on a whiteboard with intermittent stepping under laboratory ...


Choosing Instruments for Research: an Evaluation of Two Activity Monitors in Healthy Women

  • Published on July 20, 2013

Introduction: Activity-based monitors offer researchers a feasible, quantitative means for the assessing physical activity and sleep quality on a consistent and uniform basis. The purpose of this comparative study was to evaluate the reliability and feasibility of the Fitbit 4.10 activity based monitoring system to the standard actigraph GT3X+ in 42 ...


A Longitudinal Study Evaluating the Effect of Exacerbations on Physical Activity in Patients with COPD

  • Published on Sept. 20, 2013

Background Physical inactivity is common in stable COPD and independently predicts poor outcomes. Longitudinal assessments of physical activity in outpatients with COPD, covering periods of stability and exacerbations, have not been evaluated previously. Methods Patients with clinically-stable COPD and a history of 2 or more clinical exacerbations in the preceding 12 months ...


How active are our children? Findings from the Millennium Cohort Study

  • Published on Aug. 21, 2013

Objective To describe levels of physical activity, sedentary time and adherence to Chief Medical Officers (CMO) physical activity guidelines among primary school-aged children across the UK using objective accelerometer-based measurements. Design Nationally representative prospective cohort study. Setting Children born across the UK, between 2000 and 2002. Participants 6497 7-year-old to 8-year-old singleton children ...