PURPOSE
To review and update the evidence relating to the personal, social, and environmental factors associated with physical activity (PA) in adults.
METHODS
Systematic review of the… (More)
OBJECTIVES
To review the effects of physical activity on health and behavior outcomes and develop evidence-based recommendations for physical activity in youth.
STUDY DESIGN
A systematic literature… (More)
PURPOSE
The purpose of this review is to address important methodological issues related to conducting accelerometer-based assessments of physical activity in free-living individuals.
METHODS
We… (More)
UNLABELLED
The absence of comparative validity studies has prevented researchers from reaching consensus regarding the application of intensity-related accelerometer cut points for children and… (More)
PURPOSE
The purpose of this study was to evaluate age and gender differences in objectively measured physical activity (PA) in a population-based sample of students in grades 1-12.
METHODS… (More)
PURPOSE
The purpose of this study was to establish the minimal number of days of monitoring required for accelerometers to assess usual physical activity in children.
METHODS
A total of 381… (More)
OBJECTIVE
To test a conceptual model linking parental physical activity orientations, parental support for physical activity, and children's self-efficacy perceptions with physical activity… (More)
OBJECTIVES
Obesity rates are increasing among children of all ages, and reduced physical activity is a likely contributor to this trend. Little is known about the physical activity behavior of… (More)
Background: The purposes of this study were 1) to establish accelerometer count cutoffs to categorize activity intensity of 3 to 5-y old-children and 2) to evaluate the accelerometer as a measure of… (More)
BACKGROUND
There are few theoretically derived questionnaires of physical activity determinants among youth, and the existing questionnaires have not been subjected to tests of factorial validity and… (More)