Exercise can help support recovery of patients with lasting COVID symptoms, study finds 研究發現,運動可以幫助恢復具有持久性COVID症狀的患者

News Release 7-May-2021

National Institute for Health Research

Research News

Patients with lasting symptoms of COVID-19 who completed a six week, supervised rehabilitation programme demonstrated significant improvements in exercise capacity, respiratory symptoms, fatigue and cognition, according to researchers at the National Institute for Health Research (NIHR) Leicester Biomedical Research Centre – a partnership between Leicester’s Hospitals, the University of Leicester and Loughborough University.

The study, which is published in the journal Chronic Respiratory Disease today (Friday 7 May 2021), followed thirty patients who took part in face-to-face exercise rehabilitation classes twice a week over a period of six weeks. The programme included aerobic exercise, such as walking or using a treadmill, strength training of the arms and legs, and educational discussions to support symptom management based upon the information on the Your COVID Recovery platform.

Researchers found a statistically significant improvement in exercise capacity, as measured by scores of distance travelled and ability to keep going without a rest using incremental and endurance shuttle-walking tests. They also found that fatigue improved by 5 points on the Functional Assessment of Chronic Illness Therapy (FACIT) Fatigue Scale over the six-week period. In addition, participants demonstrated improvement in their overall wellbeing and cognition, as measured by standardised clinical assessment tools.

Participants were referred through a hospital discharge follow-up telephone assessment, at a face-to-face COVID-19 clinic assessment, or via their GP. Individuals were offered the opportunity to take part if they displayed physical and/or psychological symptoms that were affecting their daily activities. Patients were excluded if they demonstrated acute symptoms, or were not medically stable (such as uncontrolled diabetes) or had only symptoms that were deemed unlikely to benefit from a pulmonary rehabilitation programme, such as loss of taste or smell.

Of the participants, there was an even split between men and women, with an average of 58 years. Eighty-seven per cent of participants were admitted to hospital with COVID-19, staying on average 10 days in hospital. Fourteen per cent required mechanical ventilation and were treated in an Intensive Care Unit. Four individuals had a pre-existing respiratory condition, such as asthma or chronic obstructive pulmonary disease (COPD).

Dr Enya Daynes, specialist pulmonary rehabilitation and research physiotherapist at Leicester’s Hospitals and lead author of the study, said: “We know that COVID-19 survivors present with a wide variety of symptoms and that a one-size-fits-all approach to managing these would not be appropriate. However, there are some overlap between the needs of COVID-19 survivors and patients who have accessed pulmonary rehabilitation [PR] for other conditions, such as COPD. So we modified our well-established PR course for COVID-19 survivors and measured their symptoms to assess whether the programme could be of potential benefit.

“We found there were significant improvements in clinical outcomes of walking capacity and symptoms of fatigue, cognition and respiratory symptoms – factors that patients tell us most affect their quality of life.”

Professor Sally Singh, head of cardiac and pulmonary rehabilitation at Leicester’s Hospitals, professor at the University of Leicester and senior author of the paper, said: “This adapted rehabilitation programme for individuals following COVID-19 has demonstrated promising improvements in clinical outcomes. There were no drop-outs due to worsening symptoms and the high completion rate suggests that patients found it to be an acceptable treatment.

“There has been concern that rehabilitation may worsen or trigger symptoms of post-viral fatigue and that exercise therapy may exacerbate fatigue. The exercise element of this programme is progressed by staff experienced in delivering pulmonary and cardiac rehabilitation programmes in line with patient’s symptoms throughout the programme. Our results did not show that fatigue worsened among the group of patients on the study, and that many of their symptoms improved. This suggests an adapted pulmonary rehabilitation courses can be part of a spectrum of patient-centred and holistic approaches to treating the many different presentations of lasting COVID symptoms.”

The research team acknowledges that as a cohort study there is no control group of people with similar symptoms who did not embark on the modified pulmonary rehabilitation course to offer a comparison and that further studies with a larger patient population are needed to confirm their preliminary findings.

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The paper ‘Early experiences of rehabilitation for individuals post-COVID to improve fatigue, breathlessness exercise capacity and cognition – A cohort study’ is published in the journal, Chronic Respiratory Disease here.

Also read here

Physical activity may reduce risk of poor COVID-19 outcomes 進行體育鍛煉可以減少COVID-19結果不良的風險

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