Purpose To investigate gender, race/ethnicity, education and income as moderators of relations of perceived neighborhood crime, pedestrian, and traffic safety to physical activity. Methods Participants were from two samples: adults (N = 2199, ages 25-65 years) and older adults (N = 718, ages 66 + years) from high- and low-walkable neighborhoods in the Washington, DC ...
Background Aging has been associated with an increase in arterial stiffness. We analyzed the relationship between regular physical activity and cardiovascular aging evaluated by the radial augmentation index (rAIx), ambulatory arterial stiffness index (AASI), pulse pressure (PP) and heart age in subjects without atherosclerotic disease. Methods A cross-sectional study was ...
Abstract: The objective of this study was to develop count cut-points for three different accelerometer models: ActiGraph GT3X, RT3 and Actical to accurately classify physical activity intensity levels in adolescents. Seventy-nine adolescents (10-15 years) participated in this study. Accelerometers and oxygen consumption ([Formula: see text]) data were collected at ...
Introduction Accurate assessment of physical activity to identify current levels and changes within the population is dependent on the precision of the measurement tools. The aim of this study was to compare components of physical activity measured with an adapted version of the International Physical Activity Questionnaire (Hausa IPAQ-SF) and ...
Sponsor: Novartis Pharmaceuticals Collaborators: Innovative Medicines Initiative (PROactive Project), Innovative Medicines Initiative. Information provided by (Responsible Party): Novartis (Novartis Pharmaceuticals) Clinicaltrials.gov Identifier: NCT01992081 Purpose: This study will test two instruments to measure physical activity in COPD patients: A questionnaire and two small physical activity monitors .Patients will be randomized ...
Abstract Duchenne muscular dystrophy (DMD) is an inherited neuromuscular disorder characterized by progressive muscular degeneration. It is unknown what amount of activity is beneficial or detrimental to dystrophic muscle. This study examined functional mobility, activity, and T2 relaxation time in boys with DMD. DMD subjects were divided into two groups (...
Background Home and school are important settings where children can accrue health promoting physical activity (PA). Little is known about the PA levels and associated environmental characteristics at home and school in children with cerebral palsy (CP). An observational tool - Behaviors of Eating and Activity for Children’s Health ...
Purpose The purpose of this study was to develop and cross-validate an equation based on ActiGraph accelerometer GT3X output to predict children and youth's energy expenditure (EE) of physical activity (PA). Method Participants were 367 Chinese children and youth (179 boys and 188 girls, aged 9 to 17 years old) who wore 1 ActiGraph GT3...
Objective To calibrate the Actigraph GT3X+ accelerometer for wrist-worn placement in young preschoolers by developing intensity thresholds for sedentary, low- and high-intensity physical activity. Furthermore, to cross-validate the developed thresholds in young preschoolers. Methods Actigraph GT3X+ was used to measure physical activity during structured activities and free play ...
The triaxial GT3X+ accelerometer can measure activity counts in the vertical, horizontal right to left, horizontal front to back planes, and can generate a summative score of the three axes represented by vector magnitude (VM). Information on the reliability of the GT3X+ at the hip, wrist and ankle ...