Research Database

346 results for "Activity and Environment"

Can Young Toddlers in a Rural African Setting Wear an Accelerometer to Measure Physical Activity?

  • Added on June 15, 2012

Purpose Published experiences of using accelerometers in very young children are scarce. This study tested the usability of one accelerometer type, ActiGraph GT3X, in assessing free-living physical activity of 1.5 year-old Malawian children. Methods Fifty-two Malawian children [23 boys, mean age 17.0 months (range 16.0 – 18.5), mean HAZ -0.83, mean WHZ 0.08] from rural Lungwena ...


Predictors of Moderate-to-Vigorous Physical Activity in African American Young Adolescents

  • Added on June 14, 2012

Background African American youth residing in the South are at high risk for obesity and physical inactivity. A growing body of evidence suggests that persons living in activity-friendly environments engage in more physical activity (PA); however, access of public recreational facilities varies by neighborhood and demographic characteristics. Additionally, historical and ...



Feasibility Study to Simultaneously Objectively Assess Activity and Location of Hispanic-American

  • Added on June 14, 2012

Background Hispanic-American preschool children have higher rates of obesity and Hispanic-American youth may be at higher risk for sedentary lifestyles and metabolic syndrome. Both physical and social environmental factors influence young children’s physical activity. The ability to simultaneously capture objective measurement of physical activity and location of young Hispanic-American ...



A Preliminary Investigation of Residential Self-Selection in Smart Growth Versus Urban Sprawl

  • Added on June 14, 2012

Background Determining the relation of built environment characteristics to physical activity and obesity remains an ongoing public health concern. Recent literature suggests that environment characteristics of smart growth planning (e.g., walkability, preservation of open space) may promote physical activity. However, the majority of studies examining associations between these environmental ...



The Relationship Between Outdoor Activity and Health in Older Adults

  • Added on June 14, 2012

Background Humans have an innate connection and attraction to nature, often referred to as ‘biophilia.’ Exposure to nature has been reported to have a positive impact on health, and several studies have documented that engaging in physical activity outdoors improves mental health and well being. Exact mechanisms remain unknown but ...


Park Use and Corresponding Physical Activity Among Adolescent Girls

  • Added on June 14, 2012

Background Due to concern about United States (US) levels of physical activity among youth, in 2009 the American Academy of Pediatrics released a policy statement promoting environments and policies favoring physical activity, such as consideration of easier access to parks and open space. Parks provide free or low cost public space ...


Kcal Estimates from Activity Counts using the Potential Energy Method

  • Published on 01/01/1998

A problem exists in applying the kinetic energy equation KE mv2 to estimates of energy expenditure based on activity counts over long epochs. The instantaneous velocity should be obtained over short time periods (on the order of 0.1 second) and squared to obtain the instantaneous kinetic energy. The instantaneous KE is ...