Purpose: Accelerometers are commonly used as an objective measure of sedentary behavior, but the method of defining nonwear time directly affects sedentary estimates. The present study examined nonwear definitions and their impact on detection of sedentary time in youth using different ActiGraph models and filters. Methods: 60 youth (34 children and 26 adolescents; ...
Purpose: To analyze the association of the length of sedentary behavior breaks on metabolic risk score (MRS) in Portuguese adolescents (12-18 years). Methods: In 2012 we evaluated 400 adolescents (46% males) in a school-based study. We measured cardiorespiratory fitness (20m_shuttle-run test), blood pressure, height, waist circumference, fasting glucose and insulin, total cholesterol, ...
Purpose: There is emerging evidence that sedentary behaviors are related to indices of psychosocial well-being. This study examined associations of multiple self-reported and objectively-assessed measures of time spent sedentary with adults’ life satisfaction and physical quality of life (PQOL). Methods: Participants (N=2119; mean age=45.2yrs, SD=10.9) were recruited from neighborhoods ...
Purpose: Research has identified psychosocial factors that are consistent correlates of physical activity (PA). It is unknown whether these factors might also be related to less sedentary behavior (SB). Well-established psychosocial correlates of PA were examined to see if they related to sedentary behavior independent of PA. Methods: Adults (n=2199) ...
Purpose: To exam the correlates of sedentary behavior in UK adults aged 65 and above. Methods: Data were baseline assessments from a longitudinal study. Physical activity (PA) was assessed by ActiGraph GT3X for 7 days. The potential correlates such as demographics, physical health and mental health are assessed by questionnaires. Results: ...
Purpose: Ecological models of physical activity (PA) have shown influences on behavior at each level of the model. Ecological models for sedentary time (ST) have not been tested. This study aimed to examine the independent association of personal, social and environmental factors with objectively-measured sedentary time in a large, heterogeneous ...
Purpose: The purpose of this study was to examine the correlation between parent and adolescent levels of physical activity, sedentary behaviors, and sleep among a group of overweight and obese adolescents. Methods: Baseline data of parent-adolescent pairs who enrolled in an E-health lifestyle modification intervention were analyzed for this paper (...
Purpose: Motherhood represents a critical window of change in the life-course including physical activity levels. No studies have objectively examined the daily cadence (patterns) of physical activity (PA) among dyads of preschool aged children and mothers. In this study we examined mother-child dyads’ PA levels across week and weekend day ...
Purpose: People with heart disease tend to experience a reduced health-related quality of life (QOL). Regular physical activity (PA) has been linked to improved outcomes, but little is known regarding the role of sedentary behavior. The objective of this study was to examine the association between sedentary behavior and QOL ...
Purpose: Some evidence suggests an association between sedentary behavior and increased cardio-metabolic disease risk. The purposes of this study are to describe volume and pattern of school-day sedentary time, and compare school-day sedentary time across seasons in terms of volume and pattern in Swedish 2nd and 5th graders. Methods: Volume ...