Research Database

Comparison of Weekend and Weekday Physical Activity Patterns in Chronic Obstructive Pulmonary Disease (COPD) and Non-COPD Participants by Daily Activity Level

  • Published on May 19, 2019

Rationale: Physical activity endpoints are of interest in chronic obstructive pulmonary disorder (COPD), but in considering what constitutes a "valid" wear time for activity monitors, there is still debate whether monitors should be worn over a period incorporating both weekdays and weekends. We explored whether activity patterns differ significantly between ...



Clinician-Facilitated Physical Activity Intervention Versus Pulmonary Rehabilitation for Improving Physical Activity in COPD: A Feasibility Study

  • Published on Sept. 5, 2018

Abstract: Pulmonary rehabilitation (PR) may not suit all individuals with chronic obstructive pulmonary disease (COPD) and may not result in increased physical activity. Higher levels of physical activity are associated with reduced mortality and morbidity. The aim of this study was to assess the feasibility of conducting a trial to ...


Real-world Use of Rescue Inhaler Sensors, Electronic Symptom Questionnaires and Physical Activity Monitors in COPD

  • Published on February 18, 2019

Background: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease characterised by airflow obstruction and other morbidities such as respiratory symptoms, reduced physical activity and frequent bronchodilator use. Recent advances in personal digital monitoring devices can permit continuous collection of these data in COPD patients, but the relationships among them ...


Association between physical activity in daily life and pulmonary function in adult smokers

  • Published on Apr 2016

Objective: To determine whether the level of physical activity in daily life (PADL) is associated with pulmonary function in adult smokers. Methods: We selected 62 adult smokers from among the participants of an epidemiological study conducted in the city of Santos, Brazil. The subjects underwent forced spirometry for pulmonary function assessment. ...


Effects of a brief, pedometer-based behavioral intervention for individuals with COPD during inpatient pulmonary rehabilitation on 6-week and 6-month objectively measured physical activity: study protocol for a randomized controlled trial.

  • Published on Aug 29, 2017

Background: Pulmonary rehabilitation programs often fail to substantially enhance long-term physical activity in patients with chronic obstructive pulmonary disease (COPD). The reasons for successful physical activity changes in patients with COPD are not well understood. The need to better understand the determinants of physical activity in patients with COPD and ...


Measuring free-living physical activity in COPD patients: Deriving methodology standards for clinical trials through a review of research studies

  • Added on July 12, 2016

Abstract: This article presents a review of the research literature to identify the methodology used and outcome measures derived in the use of accelerometers to measure free-living activity in patients with COPD. Using this and existing empirical validity evidence we further identify standards for use, and recommended clinical outcome measures ...


Physical Activity as a Predictor of Thirty-Day Hospital Re-Admission after a Discharge for a Clinical Exacerbation of COPD

  • Published on Aug. 28, 2014

Rationale: Physical inactivity in COPD predicts health care utilization and mortality. Objectives: To prospectively evaluate the relationship of this variable to the frequency of 30-day readmissions. Methods: Following a hospitalization for an exacerbation, consented patients discharged following an exacerbation of COPD were asked to wear an ActiGraph GT3X+ accelerometer ...


Directly-Measured Physical Activity Predicts Re-Hospitalization Within Thirty Days Following Discharge For A COPD Exacerbation

  • Presented on May 19, 2014

Background: Lower levels of physical activity are related to increased health care utilization and mortality risk in patients with COPD. Since re-hospitalization within 30 days following discharge for a COPD exacerbation is considered an important outcome, we evaluated the relationship between physical activity and 30-day readmission. Methods: Thirty-four patients discharged following ...


Association Between Physical Activity and Inflammatory Markers Among U.S. Adults with Chronic Obstructive Pulmonary Disease

  • Published on Dec. 20, 2013

Purpose: Chronic obstructive pulmonary disease (COPD) may cause not only inflammation in the lungs but also systemic effects. One potential strategy to reduce systemic inflammation and attenuate disease progression is physical activity (PA). However, no nationally representative studies, to our knowledge, have examined the association between objectively measured physical activity ...