Purpose: To compare relations of neighborhood walkability and home equipment to (1) total and (2) location-specific physical activity.
Methods: 290 adolescents (M age=14.1±1.4 years; 45% girls; 74.7% White non-Hispanic) wore GPS and accelerometers for 5.4±1.9 days set to record at 30-second epochs. GIS was used to calculate a walkability index (sum of z-scores for density, mixed-use, ...
Purpose: Increasing physical activity (PA) may be an important non-pharmacological approach to improve sleep quality but it is not clear how level and timing and co-current light exposure influence sleep quality. PA time outdoors may be more beneficial for sleep, but only recently has it been possible to measure sleep, ...
Purpose: To pilot test the Bluetooth based ZONITH Indoor Positioning System (IPS) and investigate if different indoor areas in a science museum are associated with different types of behavior.
Methods: 171 students (grade 6) were invited to participate in the study and were asked to wear a Bluetooth-enabled Global Positioning System (GPS) ...
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 ...
Background: Accelerometers and global positioning system (GPS) units to monitor participants’ activity allow for a dynamic spatial examination of the locations where physical activity occurs. The application of spatial clustering analysis to these geographically linked physical activity data may provide a better understanding of how moderate-to-vigorous physical activity (MVPA) concentrates ...
Background Children's current physical activity levels are disturbingly low when compared to recommended levels. This may be changed by intervening in the school environment. However, at present, it is unclear to what extent schoolyard physical activity contributes towards reaching the daily physical activity guideline. The aim of this study was ...
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 ...
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 ...