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Reverse frailty through rehabilitation

Posted on 13/06/2016
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One in four patients with COPD referred for exercise rehabilitation are frail, but nevertheless can respond favourably to rehabilitation and their frailty can be reversed, finds a new study led by King’s College London and Royal Brompton & Harefield NHS Foundation Trust. The findings have wider implications for treating frailty, which affects one in ten over-65s, where adapting other rehabilitation programmes could potentially benefit more patients.

The study, funded by the NIHR and Medical Research Council and published in the journal Thorax, measured the prevalence of frailty using a range of tests in 816 patients (average age 70 years) with stable COPD (chronic obstructive pulmonary disease) and looked at whether frailty affected the completion and outcome of rehabilitation for their condition.

A quarter of patients (209 out of 816) recruited from the Harefield Hospital Pulmonary Rehabilitation Programme were found to be frail and  had double the odds of not being able to complete their rehabilitation, mainly due to exacerbation of their condition and/or hospital admission.

However, the study found that frail patients who completed the eight-week rehabilitation programme (55% of the 209) scored consistently better in measures of breathlessness, exercise performance, physical activity and health status compared to non-frail participants. After rehabilitation, 71 out of 115 (61%) previously frail patients no longer met the criteria for frailty.

Frailty increases your risk of becoming dependent on others. It affects an estimated one in every 10 people aged over 65 years and is consistently associated with a greater risk of falls, disability, hospitalization and death. Although frailty is usually linked to age-related decline, chronic diseases like COPD can accelerate the rate of decline and hasten a frail state.

In COPD, shortness of breath can be accompanied by other health-related problems including muscle weakness, osteoporosis and fatigue, symptoms which are also linked to physical frailty. Identifying frailty early in the course of disease is important, as interventions can then be introduced to try to prevent further decline, hospital admission or death in those at high risk.

Pulmonary rehabilitation targets many components of frailty including slowness, fatigue, weakness and physical inactivity, providing a more holistic approach to improve overall health. It is thus highly effective not only in improving symptoms such as breathlessness, but also in boosting physical function and health status more generally.

Whilst rehabilitation of older people typically focuses on fall prevention strategies through balance training and education, the outcomes of this latest study provide strong grounds to explore how better to support patients who are frail through more comprehensive and tailored programmes akin to those offered for COPD.

The model for pulmonary rehabilitation could potentially be adapted to support a wider group of frail people beyond those with respiratory conditions, conclude the study’s authors.  Indeed, tailored frailty programmes are being piloted within healthcare services for the elderly, but there is scope to help many more people.

Limitations of the study included the fact that the study did not obtain outcomes on participants declining or dropping out of rehabilitation; therefore, the findings should not be generalised beyond those completing a programme of rehabilitation. The outcomes were measured immediately following rehabilitation and do not reflect longer term outcomes, although researchers plan to follow up outcomes over several years.

Dr Matthew Maddocks, first author from the Cicely Saunders Institute at King’s College London said: “Frailty affects one in ten over-65s, and one in four over-80s. We now have a good understanding of how to measure frailty through various tests, and our latest study shows that a combination of exercise training and education can help to reverse this in many people. Although pulmonary rehabilitation is aimed at people with respiratory problems, it involves working the arms and legs to strengthen the muscles, and uses walking and cycling to improve fitness and balance. This model could be adapted to benefit older adults in other healthcare settings.”

Dr William Man, senior author from Royal Brompton & Harefield NHS Foundation Trust, said: “Although COPD is primarily a lung disease, many organ systems can be affected, contributing to the syndrome of frailty. This stresses the importance of a holistic approach and how interventions such as exercise training can bring great benefits to people with lung disease without necessarily treating the lungs.”

Notes to editors

For further information please contact Jenny Gimpel, PR Manager at King’s College London, on +44 (0)207 848 3443 or email jenny.gimpel@kcl.ac.uk

 ‘Physical frailty and pulmonary rehabilitation in COPD: a prospective cohort study’ by Maddocks et al is published online in the journal Thorax. doi:10.1136/thoraxjnl-2016-208460

This work was supported by the NIHR Respiratory Biomedical Research Unit at the Royal Brompton & Harefield NHS Foundation Trust and Imperial College, London, UK. Matthew Maddocks is supported by the NIHR Collaboration for Leadership in Applied Health Research and Care (CLAHRC) for South London and by Cicely Saunders International. William Man is supported by a NIHR Clinician Scientist Award, Medical Research Council (UK) New Investigator Research Grant, NIHR Clinical Trials Fellowship and by the NIHR CLAHRC for Northwest London.

The National Institute for Health Research (NIHR) is funded by the Department of Health to improve the health and wealth of the nation through research. The NIHR is the research arm of the NHS. Since its establishment in April 2006, the NIHR has transformed research in the NHS. It has increased the volume of applied health research for the benefit of patients and the public, driven faster translation of basic science discoveries into tangible benefits for patients and the economy, and developed and supported the people who conduct and contribute to applied health research. The NIHR plays a key role in the Government’s strategy for economic growth, attracting investment by the life-sciences industries through its world-class infrastructure for health research. Together, the NIHR people, programmes, centres of excellence and systems represent the most integrated health research system in the world. For further information, visit the NIHR website (www.nihr.ac.uk).

The Medical Research Council is at the forefront of scientific discovery to improve human health. Founded in 1913 to tackle tuberculosis, the MRC now invests taxpayers’ money in some of the best medical research in the world across every area of health. Thirty-one MRC-funded researchers have won Nobel prizes in a wide range of disciplines, and MRC scientists have been behind such diverse discoveries as vitamins, the structure of DNA and the link between smoking and cancer, as well as achievements such as pioneering the use of randomised controlled trials, the invention of MRI scanning, and the development of a group of antibodies used in the making of some of the most successful drugs ever developed. Today, MRC-funded scientists tackle some of the greatest health problems facing humanity in the 21st century, from the rising tide of chronic diseases associated with ageing to the threats posed by rapidly mutating micro-organisms. www.mrc.ac.uk

 

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