Purpose: To examine the associations between objectively measured physical activity (PA), sedentary time, and health-related fitness; and to investigate the combined association of PA and sedentary time on health-related fitness in youth. Methods: PA and sedentary time were assessed with accelerometers in 2506 youth aged 10-18 years (M age=13.2+/-2.3). Participants ...
Aims: Recent literature has posed sedentary behaviour as an independent entity to physical inactivity. This study investigated whether associations between sedentary behaviour and cardio-metabolic biomarkers remain when analyses are adjusted for total physical activity. Methods: Cross-sectional analyses were undertaken on 4,618 adults from the 2003/04 and 2005/06 U.S. National Health and Nutrition ...
Introduction: Lower levels of regular physical activity are an independent risk factor for insomnia incidence and prevalence. The impact of public health initiatives to increase physical activity on sleep outcomes of people with chronic sleep disorders remains mainly unexplored. The present trial was designed to investigate the effects on sleep ...
Introduction: Prevalence of overweight and obesity, highly sedentary behaviors (SB) and a lack of physical activity (PA) among young children and adolescent are a major public concern. They are important risk factors for many chronic diseases such as diabetes, and cardiovascular disease. However evidence has shown that most children and ...
Introduction: Studies have shown that more sedentary time is associated with adverse health effects and increased mortality risk. However, during sedentary time the degree of movement of the upper body can differ between individuals and this could be a relevant aspect of sedentary behavior. Whether movement during sedentary time is ...
Introduction: South Asian (SA) women in the United Kingdom (UK) are at high risk for the development of chronic diseases such as cardiovascular health disease (CVD) and type 2 diabetes, and the few published studies with these groups indicate low levels of self-reported physical activity (PA). Increasing PA and reducing sedentary ...
Introductions: Physical inactivity is associated with a higher risk of obesity, type II diabetes, hypertension, stroke, psychological problems, and some cancers (1). Currently there are no recommendations in Ireland for sedentary behaviour (SB), however, Australian guidelines recommend <2hours a day in sedentary screen time (ST) behaviour (2). Purpose: The purpose of ...
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 ...