Publications by authors named "Heleen Demeyer"

Background: Treatments for non-small cell lung cancer (NSCLC) may negatively affect health status. This study aimed to (i) quantify the impact of different treatments on physical functioning, symptoms, and health-related quality of life (HRQoL) in patients with NSCLC, and (ii) compare these with a one-time assessment in age- and sex-matched healthy individuals.

Methods: A multicenter longitudinal observational study assessed patients at diagnosis and 12-15 weeks after treatment initiation.

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Rationale: Physical activity (PA) is decreased in patients with Chronic Obstructive Pulmonary Disease (COPD). PA coaching interventions are effective to improve PA on the short-term, yet long-term effects are lacking. Providing an individualized step goal, feedback and regular contact with a coach might be important aspects to obtain long-term effect.

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BackgroundFunctional status is a marker for evaluating fall risk and predicting mortality and hospitalisations in elderly and patients with COPD. Acute exacerbations of COPD result in sudden declines in exercise capacity, quadriceps force (QF) and physical activity (PA), but their impact on functional status remains unclear. This study aimed to (i) compare the functional status of patients with COPD to healthy controls and (ii) assess prospectively the impact of an exacerbation on functional status.

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Introduction: Most lung transplant (LTX) recipients do not meet physical activity (PA) guidelines. Interventions are needed as long-term inactivity is related to morbidity and mortality. We investigated the effect of a telecoaching programme on objectively measured PA in LTX recipients.

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Background: The of walking that people with COPD do is reduced. However, data on their of walking ( gait) are still lacking. We characterised real-world gait in COPD by assessing levels and distributions of gait parameters, and comparing them across COPD severity and with healthy peers.

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Background: Patients with early stage (I-IIIA) nonsmall cell lung cancer (NSCLC) are typically treated surgery, often accompanied by (neo-)adjuvant therapy. These interventions impose a significant burden on patients and potentially impact their physical functioning (PF). The impact on PF remains uncertain and existing evidence has not yet been systematically outlined.

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Introduction: Pulmonary rehabilitation is underutilised in patients after an acute exacerbation of COPD (AECOPD). Retrieving information regarding the setting, training modalities and the uptake and adherence to exercise interventions for these individuals in a vulnerable state could potentially guide future research.

Aim: To provide a comprehensive review of the existing literature on the content, uptake and adherence of different exercise interventions for patients after an AECOPD.

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Objective: This randomized controlled trial (RCT) investigated whether adding daily use of flat flexible footwear (FFF) to a strengthening and aerobic exercise program improved short- and longer-term outcomes compared with adding stable supportive shoes (SSS) in people with medial tibiofemoral OA.

Methods: Participants ( = 97) with medial tibiofemoral OA were randomly assigned (1:1) to the FFF ( = 50) or SSS ( = 47) group. Participants in both groups received a 9-month intervention (3 months supervised followed by 6 months unsupervised exercise).

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Background: Parents play a major role in shaping their children's physical activity (PA) behaviour. This study aimed to investigate the association between PA of youth with Cystic Fibrosis (YwCF) and their parents.

Methods: PA was measured by an ActiGraph GT3x-BT for seven consecutive days.

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Background: Consumer-based wearables are becoming more popular and provide opportunities to track individual's clinical parameters remotely. However, literature about their criterion and known-groups validity is scarce.

Objective: This study aimed to assess the validity of the Fitbit Charge 4, a wrist-worn consumer-based wearable, to measure clinical parameters (ie, daily step count, resting heart rate [RHR], heart rate variability [HRV], respiratory rate [RR], and oxygen saturation) in patients with chronic obstructive pulmonary disease (COPD) and healthy controls in free-living conditions in Belgium by comparing it with medical-grade devices.

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Chronic obstructive pulmonary disease (COPD) is associated with a reduced exercise capacity. Although several field tests for exercise capacity have been modified for non-standard settings, i.e.

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Article Synopsis
  • Researchers aimed to validate the Late-Life Function and Disability Instrument (LLFDI) for assessing disability and loss of function specifically in people with Chronic Obstructive Pulmonary Disease (COPD).
  • The study involved 605 COPD patients from six European countries, analyzing LLFDI scores and their correlations with physical functioning, symptoms, and health status.
  • Results showed moderate validation of the LLFDI across various domains, highlighting significant correlations with disease severity and functional limitations but suggesting adjustments for some subdomains.
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Background: Pulmonary rehabilitation (PR) is a well-established intervention for patients with COPD, but access, uptake and completion are low. This retrospective propensity-matched study aimed to analyse equivalence from a hybrid PR modality against conventional PR.

Methods: Between 2013 and 2019, 214 patients with COPD with valid baseline physical activity assessments enrolled in conventional PR for three times per week for 3 months.

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Article Synopsis
  • * Seventeen LLL patients and 35 healthy individuals wore both trackers alongside a reference monitor for 14 days to compare step counts.
  • * The wrist tracker overestimated daily steps in LLL patients, while the hip tracker underestimated them, but both showed moderate correlation with the reference monitor, indicating their potential use for encouraging physical activity.
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Higher levels of exercise capacity and physical activity are desired outcomes in the comprehensive management of the COPD patient. In addition, improvements in exercise capacity and physical activity are instrumental to optimising other important therapeutic goals, such as improved health status, reduced healthcare utilisation and increased survival. Four general approaches towards increasing exercise capacity and physical activity in individuals with COPD will be discussed in this review: 1) pharmacological intervention, especially the administration of long-acting bronchodilators; 2) pulmonary rehabilitation, including exercise training and collaborative self-management; 3) behavioural interventions; and 4) web-based interventions.

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Article Synopsis
  • The study investigates how gait differs between people with COPD and healthy individuals, focusing on walking tests.
  • Analysis of 21,085 records led to 25 studies being included, covering over 3,200 participants, showing that those with COPD walk significantly slower than healthy controls.
  • The findings suggest that slower walking may increase fall risks for COPD patients, but overall evidence regarding other gait characteristics remains inconclusive, highlighting a gap in research on this topic.
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This article summarises some of the outstanding sessions that were (co)organised by the Allied Respiratory Professionals Assembly during the 2023 European Respiratory Society International Congress. Two sessions from each Assembly group are outlined, covering the following topics: Group 9.01 focuses on respiratory physiology techniques, specifically on predicted values and reference equations, device development and novel applications of cardiopulmonary exercise tests; Group 9.

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Objectives: Physical activity is reduced in patients with interstitial lung disease (ILD) and physical inactivity is related to poor health outcomes. We investigated the effect of a telecoaching intervention to improve physical activity in patients with ILD.

Methods: Eighty patients with ILD were randomized into the intervention or control group.

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