Research Database

405 results for "Presented At"

Perceived neighborhood recreation environments and physical activity in adolescents

  • Presented on May 21, 2014

Purpose: To examine relationships between parent perceived neighborhood recreational environment and physical activity (PA) in adolescents. Perceived diversity and proximity of recreation facilities is a core component of activity friendly neighborhood environments which may contribute to youth PA. Methods: Participants (N=928, mean age 14.1± 1.4 years old, with 50.4% girls, 33.4 non-white/Hispanic) were ...


Maximizing the detection of youth sedentary behavior with accelerometer data

  • Presented on May 21, 2014

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; ...


Summertime changes in sleep, physical activity, and BMI in urban minority girls

  • Presented on May 21, 2014

Purpose: Seasonal variations in weight gain among children are well documented. Urban minority and overweight youth are at higher risk for weight gain during the summer months, which may result from decreases in physical activity (PA) and sleep. While research has established links between PA, sleep, and BMI, the current ...


Length of sedentary breaks is associated with metabolic risk score in Portuguese children and adolescents: The LAbMed physical activity study

  • Presented on May 21, 2014

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, ...


Associations of self-reported and objectively-assessed sedentary time with adults’ quality of life and life satisfaction

  • Presented on May 21, 2014

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 ...


Physical activity-related psychosocial correlates of sedentary behavior in adults

  • Presented on May 21, 2014

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) ...


Correlates of sedentary behavior in older adults living in the UK

  • Presented on May 21, 2014

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: ...


How does retirement community environment affect changes in step counts over time?

  • Presented on May 21, 2014

Purpose: To explore whether changes in objectively assessed physical activity (PA) are related to campus environmental factors among individuals living in retirement communities (RCs). Methods: Older adults (mean age = 83, SD = 6; 72.3% female) were recruited from 11 RCs. RCs were randomized to either an attention control condition, or a multi-level walking intervention. Step ...


Objective measurements of free-living sleep and activity patterns in older Icelandic men and women

  • Presented on May 21, 2014

Purpose: To identify cross-sectional and seasonal sleeping and physical activity (PA) patterns in a community-dwelling Icelandic healthy aging population using accelerometers. Methods: Participants (n=244, male/female 110/134, age 79.7±4.9 years, BMI 26.9±4.8 kg/m2) wore an Actiwatch Spectrum on the non-dominant wrist to assess sleep and an Actigraph GT3X on the right ...