Although engagement in social interactions is one of the key diagnostic features of autism spectrum disorders (ASDs), few studies have examined if social engagement related to physical activity of children with ASD. Age is another variable of interest to researchers studying behaviors, but has not been explored in physical activity ...
Introduction The aim of this study was to evaluate the agreement between the ActiGraph accelerometer and the Bouchard diary to estimate energy expenditure (EE) in a Spanish adolescent population. Methods Sixty-one Spanish adolescents, aged 12-16 years, were recruited for this study. The Bouchard diary and the ActiGraph were administered for 3 ...
Background Questionnaires are feasible instruments to assess physical activity (PA) in large samples. The aim of the current study was to evaluate the reliability and validity of the PAQ-A questionnaire in Spanish adolescents using the measurement of PA by accelerometer as criterion. Methods In a sample of 82 adolescents, aged 12 to 17 ...
Measurement of physical activity in young children must be objective, since self or parental reports are not valid The advent of accelerometry has provided a practical and accurate means of objectively assessing engagement in habitual physical activity and inactivity (sedentary behavior) suitable even in young children. However; there is a ...
Objective To explore the association between measures of insulin resistance with objectively assessed physical activity. Design School-based, cross-sectional study. Subjects A randomly selected sample of 589 children (310 girls, 279 boys, mean (standard deviations, s.d.) age=9.7 (0.44) y, weight=33.6 (6.4) kg, height=1.39 (0.06) m) from Denmark. Methods Fasting blood samples were analysed for serum insulin ...
Low physical activity has an important role in the development of obesity in youth. To date, little evidence exists on the physical activity patterns of severely obese young people and no study has examined their habitual activity using objective measurements. The aims of this study were to 1) objectively determine physical ...
Objective The aim of this study was to evaluate the relationship between objectively measured physical activity (ACT), particularly intensity of physical activity (iACT), and body fat percentage (BF%) in 278 middle-aged women. Secondary purposes were to ascertain the association between physical activity duration (dACT) and BF% and the content to which ...
Objective This study aimed to describe levels of physical activity in a representative sample of preschool children and to quantify tracking of activity over 1 year. Research Methods and Procedures Physical activity (mean accelerometry counts/minute) was assessed over 3 days using the Computer Science and Applications accelerometer in 3- to 4-year-old ...
Purpose To describe physical activity of a nationally representative sample of the United States population as measured by the Actigraph accelerometer. Methods Data were collected from 6830 participants of NHANES 2003-4 ages 6+ years. Participants were requested to wear the monitor for 7 days during waking hours. Results Approximately 74% of participants wore the ...
The complex nature of physical activity makes it difficult to accurately measure its aspects and assess the impact on outcome parameters like energy expenditure. Here, the focus was on the ability of different accelerometers to assess daily physical activity as compared with the doubly labeled water technique, which is considered ...