Research Database

43 results for "Clinical research"

Insulin secretion and its association with physical activity, fitness and screen time in children

  • Published on Oct. 16, 2013

Objective To determine the independent associations of moderate to vigorous physical activity (MVPA), fitness, screen time, and adiposity with insulin secretion in children. Design and Methods Caucasian youth (n = 423/630), 8-10 years old, with at least one obese biological parent, were studied (QUALITY cohort). Insulin secretion was measured using HOMA2-%...


Factors Associated with Sedentary Lifestyle of Hospitalized Patients Not Restricted to Bed

  • Added on October 30, 2013

Introduction The prolonged length of stay on the bed is related to the development of musculoskeletal and respiratory disorders. Therefore, the investigation of the level of physical activity and to verifying which factors are associated with the physical activity level in hospitalized patients might be important for future strategies to ...


A Longitudinal Study Evaluating the Effect of Exacerbations on Physical Activity in Patients with COPD

  • Published on Sept. 20, 2013

Background Physical inactivity is common in stable COPD and independently predicts poor outcomes. Longitudinal assessments of physical activity in outpatients with COPD, covering periods of stability and exacerbations, have not been evaluated previously. Methods Patients with clinically-stable COPD and a history of 2 or more clinical exacerbations in the preceding 12 months ...


Annual recollection of exacerbations in patients with COPD: Impact on physical activity

  • Presented on Sept. 9, 2013

Rationale The number of exacerbations in the previous year has shown to be the best predictor of new exacerbations. The ability to recall exacerbations may lead to misclassification of patients and may have consequences on patients’ phenotype. Methods 47 patients with COPD (FEV1 65±21%pred) reported on a monthly basis all health ...


Agreement of classification of COPD patients’ physical activity with two activity monitors

  • Presented on Sept. 8, 2013

Rationale It is unclear whether different activity monitors provide similar classification of physical activity (PA) in patients with COPD. Aim To test whether similar PA classification of patients would be obtained when using 2 valid activity monitors. Methods We assessed PA for 4 weeks with Actigraph [(ACT: Steps and vector magnitude units (...


Comparative Effectiveness of Afterschool Programs to Increase Physical Activity

  • Added on August 2, 2013

Background: We conducted a comparative effectiveness analysis to evaluate the difference in the amount of physical activity children engaged in when enrolled in a physical activity-enhanced after-school program (ASP) based in a community recreation center versus a standard school-based ASP. Methods: The study was a natural experiment with 54 elementary school ...


Motor Coordination, Physical Activity and VO2max as Predictors of Body Fat in Youth

  • Presented on 25 October 2012

Aim The aim of this cross-sectional study was to explore relationships between motor coordination coefficient (MC), cardiorespiratory fitness (VO2max) moderate to vigorous physical activity (MVPA) and percentage of body fat (%BF) in children and adolescents from 6 to 19 years. Methods 108 children and adolescents (65 girls, 60.2%) from 6 schools in Porto district took ...


Relationships Between Physical Activity and Awareness and Treatment Status Among Adults With Low Femoral Bone Density in the United States

  • Published on September 2012

Purpose To examine relationships between physical activity (PA) and awareness and treatment status of low bone mineral density (BMD) among adults. Design Cross-sectional. Setting Stratified sample of adults living independently in the community. Subjects A total of 1928 adults aged 50 years and older who participated in the National Health and Nutrition ...



Recommended Levels of Physical Activity to Avoid Adiposity in Spanish Children

  • Added on September 7, 2012

Summary There is an association between adiposity levels and physical activity guidelines for adolescents. Achieving physical activity recommendations helps adolescents to prevent obesity status. This paper presents an association between physical activity levels and obesity status. This paper supports physical activity recommendations to avoid children's obesity levels. This paper emphasizes ...