Research Database

92 results for "Activity and Technology"



Mapping schoolyard behavior using GIS, GPS and accelerometers

  • Presented on May 21, 2014

Purpose: To investigate how schoolchildren use different schoolyard areas and whether these areas are associated with different types of behavior. Schoolyard characteristics seem to be related to behavior during recess, but exactly which behavior takes place where is unclear. Methods: Time spent by 316 students (grade 5-8) in 5 types of schoolyard ...


Physical Activity Actigraphy Among Truck Drivers: Accounting for Seat Vibrations

  • Presented on May 30, 2014

Background: Measuring and increasing physical activity among commercial truck drivers is a health imperative due to elevated rates of obesity and associated health problems in the population. However, actigraphy measures of physical activity are likely inflated by large truck seat vibrations during driving periods. Purpose: In preliminary studies recordings ...


Text Messaging: A Tool to Increase Compliance with Physical Activity Interventions?

  • Presented on May 30, 2014

Background: A need exists to identify effective approaches to increase compliance with physical activity interventions conducted in community settings. Purpose: To use accelerometry to analyze the effects of bi-weekly, theoretically based motivational text messages on premenopausal women’s compliance to a walking intervention. Methods: Premenopausal women (n=52, 37.2 ± 6.2 years, 80.8% Caucasian) wore ...




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 ...


Comparison of Physical Activity Measures Using Mobile Phone-Based CalFit and Actigraph

  • Published on June 13, 2013

Background Epidemiological studies on physical activity often lack inexpensive, objective, valid, and reproducible tools for measuring physical activity levels of participants. Novel sensing technologies built into smartphones offer the potential to fill this gap. Objectives We sought to validate estimates of physical activity and determine the usability for large population-based ...


Association between accelerometer-measured physical activity intensities and sedentary time in 8-10 year old children

  • Published on 2013

Abstract This study examines the association between objectively-measured physical activity (PA) intensities and sedentary behaviour (SED) in a cohort of 532 children aged 8-10 y. PA and SED were assessed by accelerometer over 7-days. Television and computer/video-game use were self-reported. Associations between PA intensities and SED variables were assessed by ...