Background: Increases in physical activity (PA) are promoted by walking in an outdoor environment. Along with walking speed, slope is a major determinant of exercise intensity, and energy expenditure. The hypothesis was that in free-living conditions, a hilly environment diminishes PA to a greater extent in obese (OB) when compared ...
Large scale studies investigating physical activity level in the young population often include children and adolescents in the age range 9 to 15 years. However, less is known about the physical activity level of 6-year-olds. Active commuting, such as walking or cycling to school, has been promoted as a potential source of ...
Purpose The purpose of this study was to measure and compare physical activity (PA) intensity performed during 10 weeks of U.S. Army Basic Combat Training (BCT) at two training sites (Ft Jackson, SC; Ft Sill, OK). Methods 264 recruits from 11 companies wore an ActiGraph on their waist during waking hours for ...
The Physical Activity Questionnaires (PAQ-Children and PAQ-Adolescents) are widely used to assess youth physical activity patterns but a limitation is that they do not provide information about time spent in moderate-to-vigorous physical activity (MVPA). Purpose The purpose of this study was to calibrate in- and out-of-school activity items of the ...
Introduction In México, despite the important issue of obesity and overweight, little is known regarding the relationship of physical activity and their related health issues, especially in the adolescent population Purpose To evaluate in a group of sophomore high school students the amount of physical activity measured by accelerometry ...
Background: There is evidence to suggest that increasing physical activity (PA) improves academic achievement (AA) in children and that aerobic fitness is associated with both cognitive function and AA. However, it is not known how these variables are interrelated and analyses with adequate control for socioeconomic variables are needed. It ...
Purpose The purpose of this study was to compare physical activity (PA) and sedentary time (ST) in children that reside within city limits (WCL) and those that live outside city limits (OCL) in a rural environment. Methods Physical activity and ST were assessed for 7 days via accelerometers (ActiGraph GT3X+) ...
Background: The afterschool period holds promise for the promotion of physical activity, yet little is known about the importance of this period as children age. Purpose: To examine changes in physical activity of children aged 5–6 years and 10–12 years and their sedentary time in the afterschool period over 3 and 5 years, and ...
There is limited evidence on objectively measured physical activity from Africa. This study quantified physical activity by accelerometry in rural South African children at ages 7, 11, and 15 years. Total physical activity was generally high (mean accelerometer counts per minute ranged 485–1017 across the 3 groups), but moderate- to vigorous-intensity physical activity was low: &...
Purpose: This study developed and tested an algorithm to classify accelerometer data as walking or non-walking using either GPS or travel diary data within a large sample of adults under free-living conditions. Methods: Participants wore an accelerometer and a GPS unit, and concurrently completed a travel diary for 7 consecutive days. ...