Research Database

341 results for "Sedentary Behavior"

The Feasibility of Reducing Sitting Time in Overweight and Obese Older Adults

  • Published on March 20, 2015

Background: Overweight and obese older adults have high sedentary time. We tested the feasibility and preliminary effects of a sedentary time reduction intervention among adults over age 60 with a body mass index over 27 kg/m2 using a nonrandomized one-arm design. Methods: Participants (N = 25, mean age = 71.4, mean body mass index = 34) completed ...


Correlates of objectively measured sedentary time and self-reported screen time in Canadian children

  • Published on March 18, 2015

Background: Demographic, family, and home characteristics play an important role in determining childhood sedentary behaviour. The objective of this paper was to identify correlates of total sedentary time (SED) and correlates of self-reported screen time (ST) in Canadian children. Methods: Child- and parent-reported household, socio-demographic, behavioural, and diet related data ...


Longitudinal changes in sedentary time and physical activity during adolescence

  • Published on April 1, 2015

Background: Low levels of physical activity and high time spent in sedentary activities have been associated with unfavourable health outcomes in adolescents. During adolescence, physical activity declines and sedentary time increases, however little is known about whether the magnitude of these changes differs within or between school-time, after-school time, or ...


Regional differences of physical activity and sedentary behaviour in Swiss children are not explained by socio-demographics or the built environment

  • Published on Jan. 8, 2015

Objective: We evaluated whether regional differences in physical activity (PA) and sedentary behaviour (SB) exis- ted along language boundaries within Switzerland and whether potential differences would be explained by socio- demographics or environmental characteristics. Methods: We combined data of 611 children aged 4 to 7 years from four regional studies. PA and SB ...


Light Intensity Physical Activity and Sedentary Behavior in Relation to Body Mass Index and Grip Strength in Older Adults: Cross-Sectional Findings from the Lifestyle Interventions and Independence for Elders (LIFE) Study

  • Published on Feb. 3, 2015

Background: Identifying modifiable determinants of fat mass and muscle strength in older adults is important given their impact on physical functioning and health. Light intensity physical activity and sedentary behavior are potential determinants, but their relations to these outcomes are poorly understood. We evaluated associations of light intensity physical activity ...


Workplace Sitting Breaks Questionnaire (SITBRQ): an assessment of concurrent validity and test-retest reliability

  • Published on Dec. 5, 2014

Background: Breaks in prolonged sitting may have beneficial cardiometabolic and musculoskeletal health outcomes. Desk-based work settings are an important environment to promote and support breaks in sitting time. However, few studies have reported the psychometric properties of self-report measures to assess the frequency and duration of breaks from sitting. This ...


Different conceptual constructs for modelling sedentary behaviour and physical activity: the impact on the correlates of behaviour

  • Published on Dec. 16, 2014

Background: Research on the correlates of physical activity (PA) and sedentary behaviour (SB) to date has used independent prediction equations for each behaviour, without considering that they are both part of the same continuum of movement. This assumption of independence might lead to inaccurate estimates because common underlying latent variables ...


Moderate-to-Vigorous Physical Activity and Sedentary Behavior: Independent Associations With Body Composition Variables in Brazilian Children

  • Published on April 22, 2015

Abstract: This study aimed to analyze the independent associations of accelerometer-determined sedentary behavior (SB), physical activity, and steps/day with body composition variables in Brazilian children. 485 children wore accelerometers for 7 days. Variables included time in SB and different physical activity intensities (light or LPA, moderate or MPA, vigorous or VPA, ...


Physical activity and sedentary behavior patterns using accelerometry from a national sample of United States adults

  • Published on Feb. 15, 2015

Background: This study described the patterns of accelerometer-determined physical activity and sedentary behavior among adults using a nationally representative sample from the United States. Methods: Using 2003-2006 National Health and Nutrition Examination Survey (NHANES) data, 7931 adults at least 18 years old wore an ActiGraph accelerometer for one week, providing at least 3 ...


Sedentary behaviour and physical activity in bronchiectasis: a cross-sectional study

  • Published on May 13, 2015

Background The impact of bronchiectasis on sedentary behaviour and physical activity is unknown. It is important to explore this to identify the need for physical activity interventions and how to tailor interventions to this patient population. We aimed to explore the patterns and correlates of sedentary behaviour and physical activity ...