Publications by authors named "Narelle S Cox"

Objectives: Accurate measurement of exercise capacity is an important prognostic indicator for people with cystic fibrosis (pwCF); however, gold-standard, cardiopulmonary exercise tests are commonly unavailable. This review systematically describes the clinimetric properties of field exercise tests for pwCF.

Methods: A systematic review was undertaken for studies reporting field exercise tests in pwCF.

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Article Synopsis
  • Pulmonary rehabilitation (PR) is effective for COPD patients but isn't used as much as it should be; home-based PR (HBPR) could help increase its usage but needs more research on how well it follows treatment protocols.
  • This study analyzed data from a randomized clinical trial to assess how closely HBPR follows prescribed exercise protocols and the factors that affect program completion.
  • Of 107 participants referred, 70% started HBPR, with most adhering to exercise protocols successfully, and those who engaged early had a significantly higher chance of completing the program and showed improvements in their quality of life.
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  • The study explores how effective home-based telerehabilitation is compared to traditional center-based pulmonary rehabilitation for patients with COPD, focusing on various health outcomes.
  • It involved analyzing data from two randomized trials to determine if the type of rehabilitation affects participants' responses based on their health improvements.
  • Results showed that both methods had similar success rates in helping participants achieve meaningful health improvements, but home-based telerehabilitation led to a higher completion rate compared to center-based rehabilitation.
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This study aimed to understand factors that health professionals, from a variety of healthcare contexts and countries, believed support remote delivery of pulmonary rehabilitation (PR); and to develop a targeted intervention to support implementation of remote PR. A 3-phase participatory action-research process was employed, across three study hubs in three countries (NZ, India, USA), representing diverse healthcare delivery contexts. Phase 1 employed focus groups of health professionals working in PR; data were analysed qualitatively with transcripts coded against two implementation frameworks (Theoretical Domains Framework (TDF) and Consolidated Framework for Implementation Research (CFIR)).

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Background: Supporting referral to pulmonary rehabilitation (PR) from primary care for people with chronic lung disease could improve equity of access. Understanding who is referred to PR from primary care, and by whom, could inform development of strategies to increase awareness of and referral to PR for people with chronic respiratory disease. We aimed to quantify the proportion of patients referred to PR from primary care in an Australian metropolitan setting; and to identify characteristic features of patients and referrers.

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Rationale: New pulmonary rehabilitation models can improve access to this effective but underutilised treatment for people with chronic respiratory disease, however cost effectiveness has not been determined.

Objective: To compare the cost effectiveness of telerehabilitation, including videoconferencing and synchronous supervision, to standard center-based pulmonary rehabilitation.

Methods: Prospective economic analyses were undertaken from a societal perspective alongside a randomised controlled equivalence trial in which adults with stable chronic respiratory disease undertook an 8-week outpatient center-based program or telerehabilitation.

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Purpose: The 6-min walk test (6MWT) is commonly used to assess functional exercise capacity in people with chronic respiratory disease in both clinical and research settings. However, two tests are required to achieve accurate results, due to a well-documented learning effect for the 6-min walk distance (6MWD). Whether it is possible to reduce or eliminate the learning effect by optimizing 6MWT instructions is not known.

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Despite the known benefits of pulmonary rehabilitation (PR) for patients with chronic respiratory disease, this treatment is underused. Evidence-based guidelines should lead to greater knowledge of the proven benefits of PR, highlight the role of PR in evidence-based health care, and in turn foster referrals to and more effective delivery of PR for people with chronic respiratory disease. The multidisciplinary panel formulated six research questions addressing PR for specific patient groups (chronic obstructive pulmonary disease [COPD], interstitial lung disease, and pulmonary hypertension) and models for PR delivery (telerehabilitation, maintenance PR).

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Article Synopsis
  • The study aimed to assess the validity and reliability of the modified shuttle 25-level test (MST-25) in children with cystic fibrosis (CF).
  • It involved a prospective study with children undergoing two testing conditions: MST-25 and a cardiopulmonary exercise test (CPET), comparing various outcomes to evaluate their effectiveness.
  • The results showed that MST-25 is a valid and reliable way to measure exercise capacity in CF patients, making it useful for monitoring and prescribing exercise, especially when CPET isn't available.
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Purpose Of Review: Telerehabilitation is an alternative delivery model for pulmonary rehabilitation, an evidence-based nonpharmacological intervention, in people with chronic pulmonary disease. This review synthesizes current evidence regarding the telerehabilitation model for pulmonary rehabilitation with an emphasis on its potential and implementation challenges, as well as the clinical experiences from the COVID-19 pandemic.

Recent Findings: Different models of telerehabilitation for delivering pulmonary rehabilitation exist.

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Background: Pulmonary rehabilitation (PR) is a core component of management people with chronic obstructive pulmonary disease (COPD); yet, people with COPD face significant barriers to attending centre-based PR programs. The emergence of new models of PR, remotely delivered directly into people's homes, has the potential to improve rehabilitation access and completion by providing patients with a choice of rehabilitation location (centre or home). However, offering patients a choice of rehabilitation model is not usual practice.

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Issue Addressed: What are the effects of a brief intervention to promote physical activity (PA) delivered in a health care setting other than primary care?

Methods: MEDLINE, EMBASE, CINAHL and PsycINFO were used to identify randomised controlled trials which evaluated the effect of brief interventions to increase PA, delivered in a health care setting. Review outcomes included subjectively or objectively measured PA, adherence to prescribed interventions, adverse events, health-related quality of life, self-efficacy and stage of change in relation to PA. Where possible, clinically homogenous studies were combined in a meta-analysis.

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Background: Autonomy-supportive health environments can assist patients in achieving behavior change and can influence adherence positively. Telerehabilitation may increase access to rehabilitation services, but creating an autonomy-supportive environment may be challenging.

Research Question: To what degree does telerehabilitation provide an autonomy-supportive environment? What is the patient experience of an 8-week telerehabilitation program?

Study Design And Methods: Individuals undertaking telerehabilitation or center-based pulmonary rehabilitation within a larger randomized controlled equivalence trial completed the Health Care Climate Questionnaire (HCCQ; short form) to assess perceived autonomy support.

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Background: Physical activity levels are known to decline following hospitalisation for people with cystic fibrosis (pwCF). However, optimal physical activity promotion strategies are unclear. This study investigated the effect of a web-based application (ActivOnline) in promoting physical activity in young pwCF.

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Background: The roles of physical activity (PA) and exercise within the management of cystic fibrosis (CF) are recognised by their inclusion in numerous standards of care and treatment guidelines. However, information is brief, and both PA and exercise as multi-faceted behaviours require extensive stakeholder input when developing and promoting such guidelines.

Method: On 30 June and 1 July 2021, 39 stakeholders from 11 countries, including researchers, healthcare professionals and patients participated in a virtual conference to agree an evidence-based and informed expert consensus about PA and exercise for people with CF.

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The aim of this study was to compare the use of generic and cystic fibrosis (CF)-specific cut-points to assess movement behaviours in children and adolescents with CF. Physical activity (PA) was assessed for seven consecutive days using a non-dominant wrist-worn ActiGraph GT9X in 71 children and adolescents (36 girls; 13.5 ± 2.

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This study sought to investigate the association of light physical activity (LPA), moderate-to-vigorous physical activity (MVPA), sedentary time (SED), and sleep with lung function in children and adults with CF. In total, 86 children (41 females; 13.6 ± 2.

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