Research Database

263 results for "General Activity"

Trajectories of Objectively Measured Physical Activity in Free-Living Older Men

  • Published on July 1, 2014

Background: The steep decline in physical activity (PA) among the oldest old is not well understood; there is little information about the patterns of change in PA and sedentary behaviour (SB) in older people. Longitudinal data on objectively measured PA data can give insights about how PA and sedentary behaviour (...

Physical Activity Levels in Physical Education Classes in a City in Southern Brazil

  • Presented on April 2014

Abstract: The objective of this study was to estimate physical activity levels of schoolchildren during physical education classes. Thirty classes between second and fifth grades were selected from Florianópolis’ public schools, of which 13 (n=260, 50.4% boys) had attended to physical education classes. Actigraph® GT3X+ physical monitors were used to ...

One-Year Stability of Objectively Measured Physical Activity Among Adults

  • Presented on April 2014

Abstract: The aim of the present study was to evaluate the one-year stability of objectively-measured physical activity (PA) among individuals aged 18 to 35 years. We recruited 16 volunteers (8 men) and measured their activity levels every month from October 2012 to September 2013. GT3x+ Actigraph accelerometers were used; the epoch was set at 5 seconds. ...

Compensation of Physical Activity and Sedentary Time in Primary School Children

  • Presented on April 2014

Purpose: There is considerable debate about the possibility of physical activity compensation. This study examined whether increased levels in physical activity and/or sedentary behaviour on one day were predictive of lower levels in these behaviours the following day (compensatory mechanisms) among children. Methods: Two hundred and forty-eight children (121 boys, 127 ...

Age-Group Comparability of Raw Accelerometer Output from Wrist- and Hip-Worn Monitors

  • Published on Feb. 5, 2014

Purpose: The study aims were to compare raw tri-axial accelerometer output from ActiGraph GT3X + (AG) and GENEActiv (GA) placed on the hip and the wrist and to develop regression equations for estimating energy expenditure. Methods: Thirty children (7-11 yr.) and 30 adults (18-65 yr.) completed eight activities (ranging from lying ...

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 ...