Research Database

554 results for "Children"

Quality Control Methods in Accelerometer Data Processing: Defining Minimum Wear Time

  • Published on June 24, 2013

Background: When using accelerometers to measure physical activity, researchers need to determine whether subjects have worn their device for a sufficient period to be included in analyses. We propose a minimum wear criterion using population-based accelerometer data, and explore the influence of gender and the purposeful inclusion of children with ...


Treatment options for type 2 diabetes in adolescents and youth: a study of the comparative efficacy of metformin alone or in combination with rosiglitazone or lifestyle intervention in adolescents with type 2 diabetes

  • Published on April 8, 2007

Abstract: Despite the increased prevalence of type 2 diabetes mellitus (T2DM) in the pediatric population, there is limited information about the relative effectiveness of treatment approaches. This article describes the rationale and design of a National Institutes of Health-sponsored multi-site, randomized, parallel group clinical trial designed to test the hypothesis ...


Objectively Measured Physical Activity and Sedentary Time during Childhood, Adolescence and Young Adulthood: A Cohort Study

  • Published on April 23, 2013

Background: To know how moderate-to-vigorous physical activity (MVPA) and sedentary time change across lifespan periods is needed for designing successful lifestyle interventions. We aimed to study changes in objectively measured (accelerometry) MVPA and sedentary time from childhood to adolescence and from adolescence to young adulthood. Methods: Estonian and Swedish participants ...


Reliability and validity of the multimedia activity recall in children and adults (MARCA) in people with chronic obstructive pulmonary disease.

  • Published on Nov. 27, 2013

Objective: To determine the reliability and validity of the Multimedia Activity Recall for Children and Adults (MARCA) in people with chronic obstructive pulmonary disease (COPD). Design: People with COPD and their carers completed the Multimedia Activity Recall for Children and Adults (MARCA) for four, 24-hour periods (including test-retest of 2 days) ...


Children’s sedentary behaviour: descriptive epidemiology and associations with objectively-measured sedentary time.

  • Published on Nov. 25, 2013

Background: Little is known regarding the patterning and socio-demographic distribution of multiple sedentary behaviours in children. The aims of this study were to: 1) describe the leisure-time sedentary behaviour of 9-10 year old British children, and 2) establish associations with objectively-measured sedentary time. Methods: Cross-sectional analysis in the SPEEDY study (Sport, Physical ...



Objectively measured habitual physical activity and sedentary behaviour in obese and non-obese Malaysian children

  • Published on Nov. 8, 2013

Abstract: The present study examined objectively measured physical activity in Malaysian children and compared the differences in physical levels between obese and healthy weight children. Eighty-six obese children were matched for age and sex with 86 healthy weight children with median age 9.5 years. Habitual physical activity and sedentary behaviour were measured ...


T2 Relaxation Time and Activity in Boys with Duchenne Muscular Dystrophy

  • Published on Summer 2013

Abstract Duchenne muscular dystrophy (DMD) is an inherited neuromuscular disorder characterized by progressive muscular degeneration. It is unknown what amount of activity is beneficial or detrimental to dystrophic muscle. This study examined functional mobility, activity, and T2 relaxation time in boys with DMD. DMD subjects were divided into two groups (...



Predicting Chinese children and youth's energy expenditure using ActiGraph accelerometers: a calibration and cross-validation study.

  • Published on December 2013

Purpose The purpose of this study was to develop and cross-validate an equation based on ActiGraph accelerometer GT3X output to predict children and youth's energy expenditure (EE) of physical activity (PA). Method Participants were 367 Chinese children and youth (179 boys and 188 girls, aged 9 to 17 years old) who wore 1 ActiGraph GT3...