Research Database

553 results for "Children"


Combining Accelerometers with GPS to Investigate Children’s Outdoor Physical Activity

  • Added on June 16, 2011

Introduction With increasing interest in how the physical environment may influence physical activity, methods are needed that can be used to investigate the environmental context of activity. The aim of this study is to use combined accelerometer and GPS data to describe the level and location of children’s physical ...


Identification of Children's Activity Type with Accelerometer-Based Neural Networks

  • Added on June 16, 2011

Introduction Children’s physical activity has traditionally been measured with self-reports. Self-reports are easily administered, low-cost measurements. However, they do not capture the sporadic short-burst nature of children’s physical activity very well. Accelerometers have therefore, in recent times, become the method of choice in physical activity research. These devices ...


Using Observation to Compare Different Accelerometer Cut Points for Sedentary Behavior in Children

  • Added on June 16, 2011

Introduction Accurate objective methods for the assessment of sedentary behavior are crucial for population monitoring and evaluation of public health strategies for preventing childhood obesity. Actigraph accelerometers are a commonly used objective physical activity measurement tool. It is hypothesized that accelerometers may also provide a valid method for assessing children’...


Volume, Patterns, and Types of Sedentary Behavior and Cardio-Metabolic Health in Children and Adolescents

  • Presented on 2011

Introduction Cardio-metabolic risk factors are becoming more prevalent in children and adolescents. A lack of moderate-to-vigorous intensity physical activity (MVPA) is an established determinant of cardio-metabolic risk factors in children and adolescents [1]. Less is known about the relationship between sedentary behavior and cardio-metabolic health. Therefore, the objective was to examine ...


Correlates of Seasonal Outdoor Physical Activity Measured Using Accelerometers and GPS

  • Published on 2011

Introduction Combining GPS and accelerometer data offers a new opportunity to objectively measure children’s time spent active outdoors [1]. This is important as greater time spent outdoors is related to reduced risk of obesity. We know little about what factors determine children’s outdoor activity. This study uniquely investigated the ...



Validation of the Netherlands Physical Activity Questionnaire in Brazilian Children

  • Added on May 21, 2011

Physical activity instruments can be subjective or objective. There is a need to assess the reliability of these instruments, especially for researches in children. The aim of this study was to determine the validity of the Netherlands Physical Activity Questionnaire (NPAQ). Methods Population under study were Brazilian children aged 4 to 11 ...


Investigating the Impact of a Smart Growth Community on Children’s Physical Activity Contexts Using Ecological Momentary Assessment

  • Presented on 03/01/2011

Background Smart growth (SG) urban planning strategies (e.g., preservation of open space, integration of mixed land uses, establishment of compact building design, creation of walkable neighborhoods) may increase physical activity and prevent obesity in children. However, little is known about whether and how frequently children living in SG communities ...