A Short-Term Pacing Intervention in People with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Pilot Study in Portugal

Abstract:

Background and Objectives: Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) remains a disease without a curative treatment. Hence, patient healthcare is mostly based on symptom management and the application of coping strategies, such as pacing. In this strategy, patients learn how to plan their daily physical and cognitive activities according to their perceived energy reservoir (or envelop). However, there is currently no evidence for the feasibility of pacing in Portugal, where ME/CFS is not well recognized.

Materials and Methods: We implemented a 8-week pacing program in Portuguese patients with an official diagnosis of ME/CFS. We focused on recruitment feasibility, protocol adherence, and patient acceptability, with secondary exploratory analysis of pre- and post-intervention variations in the Chalder’s fatigue questionnaire and SF36 physical functioning scores.

Results: We were able to recruit thirteen patients for the study. The patients attended, on average, seven out of the eight sessions expected per participant, with the majority adhering to the research protocol (n=7;53.8%). In a post-intervention survey, the respondents (n=10) considered that the intervention addressed the specific needs of people living with ME/CFS. Concerning the outcome trends, the average fatigue score decreased from 27.5 at baseline to 17.7 after the intervention. The mean physical functioning score increased from 24.6 to 31.7.

Conclusions: This exploratory study supported the feasibility of benchmark studies in Portugal with increased sample size, longer interventions, and including a control group (e.g., specialized medical care), with which eventual placebo effects can be better accounted for.

Source: Ribeiro V, Azevedo P, Westermeier F, Sepúlveda N. A Short-Term Pacing Intervention in People with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Pilot Study in Portugal. Medicina (Kaunas). 2026 Feb 6;62(2):331. doi: 10.3390/medicina62020331. PMID: 41752730. https://www.mdpi.com/1648-9144/62/2/331 (Full text)

Editorial: Exploring chronic fatigue: neural correlates, mechanisms, and therapeutic strategies

Introduction:

Fatigue and weariness have been universal experiences throughout human history, coexisting with humanity since its earliest days across all cultures and times. It occurs in ancient stories, including Genesis, in which Adam’s fatigue was linked to the toil imposed upon him as part of the consequences of disobedience, a condition that made sustaining life a laborious task. Acute fatigue, which arises naturally in response to stress or work, is a normal physiological process experienced by all humans regardless of era or place. It signals the body’s need to rest and adapt, playing a vital role in maintaining health and balance.

In contrast, chronic fatigue, as seen in aging populations and conditions like myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), is a complex and often debilitating disorder that extends beyond normal tiredness. It involves sustained disruption of metabolic, neurological, and immune functions, resisting typical recovery mechanisms. The 14 papers in this Research Topic collectively explore the multifaceted nature of fatigue, presenting advances in mechanistic research, epidemiology, clinical interventions, rehabilitation techniques, and innovative monitoring technologies aimed at improving diagnosis, treatment, and management of this persistent condition.

Source: Kujawski S, Hodges L, Morten KJ, Zalewski P. Editorial: Exploring chronic fatigue: neural correlates, mechanisms, and therapeutic strategies. Front Neurosci. 2025 Dec 10;19:1751667. doi: 10.3389/fnins.2025.1751667. PMCID: PMC12728026. https://pmc.ncbi.nlm.nih.gov/articles/PMC12728026/ (Full text)

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): diagnosis and management

Abstract:

Background: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) has garnered substantial scientific and clinical interest, due to its rising global prevalence and significant pathophysiological overlap with post-acute COVID-19 syndrome (PACS). This review systematically elucidates the prevailing diagnostic criteria, summarizes recent advances in understanding the potential pathophysiological mechanisms, and evaluates pharmacological and non-pharmacological interventions, and symptom-based assessment and management strategies.

Methods: A comprehensive literature search was conducted across PubMed, Web of Science, Embase, and the Cochrane Library for articles published from inception to August 2025.

Results: Current diagnostic frameworks for ME/CFS rely primarily on clinical symptomatology and lack definitive biomarkers. Immune dysregulation, oxidative stress, mitochondrial dysfunction, and neuroinflammation are central to its pathology. Pharmacological management includes immunomodulatory treatments, antioxidant therapies, mitochondrial support, and neuroinflammation intervention. Non-pharmacological strategies such as cognitive behavioral therapy (CBT), graded exercise therapy (GET), activity pacing, and traditional Chinese medicine (TCM) complement biomedical approaches by alleviating symptom severity and promoting energy conservation.

Conclusion: Among these approaches, CBT serves as an adjunctive therapy for symptom management rather than a curative one, whereas GET is contraindicated due to its potential for harm. Comprehensive clinical assessment and management of ME/CFS requires being symptom oriented and the recognition of individual differences. Recommended directions for future research include developing biomarker-based diagnostic tools, optimizing combination therapies that target multiple pathophysiological pathways simultaneously, and integrating real-world data and digital health technologies for precise monitoring and management of ME/CFS.

Source: Fan J, Jiao J, Chang HQ, Zhong DL, Liu XB, Li J, Chen LM, Jin RJ, Wu X. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS): diagnosis and management. J Transl Med. 2025 Dec 9. doi: 10.1186/s12967-025-07506-y. Epub ahead of print. PMID: 41366804. https://link.springer.com/article/10.1186/s12967-025-07506-y

Research Supports the Integration of Acupuncture in Mainstream Health Care for the Management of Chronic Diseases

Abstract:

Purpose: To address the role of acupuncture in mainstream health care for symptom relief, condition outcome, pain management, and shared therapy in resolving chronic diseases. This article explores how acupuncture education can adapt to meet the standards required for inclusion in conventional health care.

Objectives: To discuss the future of acupuncture education and its part in training providers for inclusion in a comprehensive health care system that involves physician acupuncturists and licensed acupuncturists for treating and managing specific chronic diseases. To strategize the future of acupuncture education at an advanced clinical level that fosters incorporating acupuncture therapy into selected allopathic settings. To encourage the recognition of translational research for promoting the acceptance of acupuncture by providers and insurers.

Conclusion: Translational research employs clinical evidence to support acupuncture therapy when incorporated into selected areas of allopathic practices, including pain management, palliative care for patients with end-stage cancer, sleep disorders, anxiety disorders, post-traumatic stress, female hormonal conditions such as premenstrual syndrome and menopausal syndrome, as well as chronic fatigue syndromes including Myalgic encephalomyeltitis/chronic fatigue syndrome (ME/CFS) and Long COVID. Advanced clinical training in acupuncture schools and postgraduate certification courses are required to prepare acupuncturists to safely and effectively provide the specialized integrative acupuncture services needed in these clinical areas.

Source: Williams JE, Kim Y, Moramarco J. Research Supports the Integration of Acupuncture in Mainstream Health Care for the Management of Chronic Diseases. Med Acupunct. 2025 Apr 17;37(2):106-111. doi: 10.1089/acu.2024.0108. PMID: 40308724; PMCID: PMC12038303. https://pubmed.ncbi.nlm.nih.gov/40308724/

NICE guideline on ME/CFS: robust advice based on a thorough review of the evidence

Abstract:

In 2021, the National Institute for Health and Care Excellence produced an evidence-based guideline on the diagnosis and management of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), a disabling long-term condition of unknown cause. The guideline provides clear support for people living with ME/CFS, their families and carers, and for clinicians. A recent opinion piece published in the journal suggested that there were anomalies in the processing and interpretation of the evidence when developing the guideline and proposed eight areas where these anomalies were thought to have occurred. We outline how these opinions are based on a misreading or misunderstanding of the guideline process or the guideline, which provides a balanced and reasoned approach to the diagnosis and management of this challenging condition.

Source: Barry PWKelley KTan T, et al. NICE guideline on ME/CFS: robust advice based on a thorough review of the evidence.

Management of severe ME/CFS in children and young people in the UK: a British Paediatric Surveillance Unit study

Abstract:

Objective: Severe myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS) in children and young people (CYP) is a little-understood condition which significantly impacts education, development and quality of life. We used data from a population-wide surveillance study to explore the screening investigation, referral and management of suspected cases of paediatric severe ME/CFS.

Methods: A British Paediatric Surveillance Unit (BPSU) study reported cases of CYP with suspected severe ME/CFS between February 2018 and February 2019. Paediatricians reporting cases to BPSU and allied healthcare professionals in two large specialist paediatric ME/CFS centres were invited to complete questionnaires for CYP meeting the surveillance case definition. The study focused primarily on CYP with confirmed severe ME/CFS and the extent to which their care met NICE (The National Institute for Health and Care Excellence) recommendations but also considered separately those with probable or possible severe ME/CFS.

Results: This study includes a total of 92 CYP with suspected severe ME/CFS; 33 meeting criteria for severe ME/CFS and an additional 59 classified as probable or possible severe ME/CFS. For 16 possible cases, incomplete investigation to exclude alternative diagnoses prevented confirmation of a severe ME/CFS diagnosis. Only 21 of 33 (64%) confirmed severe ME/CFS cases had been referred to specialist services. The management provided varied considerably between patients and four received nothing at all. Of the management provided, the most frequent approaches were medication (67%), activity management (61%) and physiotherapy (61%). Domiciliary assessments and support, and social services referrals were received by 12% and 6% of confirmed severe cases. Similar proportions of management approaches were seen in probable/possible severe ME/CFS.

Conclusion: Full investigation is frequently incomplete in CYP with suspected severe ME/CFS and recommendations for referral and management are poorly implemented, in particular the needs of CYP who are unable to leave their home might be poorly met.

Source: Royston AP, Burge S, Idini I, Brigden A, Pike KC. Management of severe ME/CFS in children and young people in the UK: a British Paediatric Surveillance Unit study. BMJ Paediatr Open. 2024 Mar 7;8(1):e002436. doi: 10.1136/bmjpo-2023-002436. PMID: 38453418. https://bmjpaedsopen.bmj.com/content/8/1/e002436 (Full text)

Diagnosis and Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Abstract:

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic neurologic disease often preceded by infection. There has been increased interest in ME/CFS recently because of its significant overlap with the post-COVID syndrome (long COVID or post-acute sequelae of COVID), with several studies estimating that half of patients with post-COVID syndrome fulfill ME/CFS criteria. Our concise review describes a generalist approach to ME/CFS, including diagnosis, evaluation, and management strategies.

Source: Grach SL, Seltzer J, Chon TY, Ganesh R. Diagnosis and Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome. Mayo Clin Proc. 2023 Oct;98(10):1544-1551. doi: 10.1016/j.mayocp.2023.07.032. PMID: 37793728. https://www.mayoclinicproceedings.org/article/S0025-6196(23)00402-0/fulltext (Full text)

A Scoping Review of ‘Pacing’ for Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Lessons Learned for the Long COVID Pandemic

Abstract:

Background Controversy over treatment for people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a barrier to appropriate treatment. Energy management or pacing is a prominent coping strategy for people with ME/CFS that involves regulating activity to avoid post exertional malaise (PEM), the worsening of symptoms after an activity. Until now, characteristics of pacing, and the effects on patients’ symptoms had not been systematically reviewed. This is problematic as the most common approach to pacing, pacing prescription, and the pooled efficacy of pacing was unknown. Collating evidence may help advise those suffering with similar symptoms, including long COVID, as practitioners would be better informed on methodological approaches to adopt, pacing implementation, and expected outcomes.

Objectives In this scoping review of the literature, we aggregated type of, and outcomes of, pacing in people with ME/CFS.

Eligibility criteria Original investigations concerning pacing were considered in participants with ME/CFS.

Sources of evidence Six electronic databases (PubMed, Scholar, ScienceDirect, Scopus, Web of Science and the Cochrane Central Register of Controlled Trials [CENTRAL]) were searched; and websites MEPedia, Action for ME, and ME Action were also searched for grey literature.

Methods A scoping review was conducted. Review selection and characterisation was performed by two independent reviewers using pretested forms.

Results Authors reviewed 177 titles and abstracts, resulting in included 17 studies: three randomised control trials (RCTs); one uncontrolled trial; one interventional case series; one retrospective observational study; two prospective observational studies; four cross-sectional observational studies; and five cross-sectional analytical studies. Studies included variable designs, durations, and outcome measures. In terms of pacing administration, studies used educational sessions and diaries for activity monitoring. Eleven studies reported benefits of pacing, four studies reported no effect, and two studies reported a detrimental effect in comparison to the control group.

Conclusions Highly variable study designs and outcome measures, allied to poor to fair methodological quality resulted in heterogenous findings and highlights the requirement for more research examining pacing. Looking to the long COVID pandemic, future studies should be RCTs utilising objectively quantified digitised pacing, over a longer duration of examination, using the core outcome set for patient reported outcome measures.

Source: Nilihan E.M. Sanal-Hayes, Marie Mclaughlin, Lawrence D. Hayes, Jacqueline L. Mair, Jane Ormerod, David Carless, Natalie Hilliard, Rachel Meach, Joanne Ingram, Nicholas F. Sculthorpe. A Scoping Review of ‘Pacing’ for Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Lessons Learned for the Long COVID Pandemic. medRxiv 2023.08.10.23293935; doi: https://doi.org/10.1101/2023.08.10.23293935 https://www.medrxiv.org/content/10.1101/2023.08.10.23293935v1.full-text (Full text)

eLearning improves allied health professionals’ knowledge and confidence to manage medically unexplained chronic fatigue states: A randomized controlled trial

Abstract:

Objectives: To evaluate the impact of eLearning by allied health professionals on improving the knowledge and confidence to manage people with medically unexplained chronic fatigue states (FS).

Methods: Using a parallel randomized controlled trial design, participants were randomized 1:1 to a 4-week eLearning or wait-list control group. Knowledge and self-reported confidence in clinical skills to implement a therapeutic intervention for patients with FS were assessed at baseline, post-intervention and follow-up. Secondary outcomes (adherence and satisfaction with online education, knowledge retention) were also assessed. Data was analyzed using intention-to-treat.

Results: There were 239 participants were randomized (eLearning n = 119, control n = 120), of whom 101 (85%) eLearning and 107 (89%) control participants completed baseline assessments and were included in the analysis. Knowledge (out of 100) improved significantly more in the eLearning group compared to the control group [mean difference (95% CI) 8.6 (5.9 to 11.4), p < 0.001]. Knowledge was reduced in the eLearning group at follow-up but was still significantly higher than baseline [6.0 (3.7 to 8.3), p < 0.001]. Median change (out of 5) in confidence in clinical skills to implement the FS intervention was also significantly greater in the eLearning group compared to the control group [knowledge: eLearning (1.2), control (0); clinical skills: eLearning (1), control (0.1); both p < 0.001)]. Average time spent on the eLearning program was 8.8 h. Most participants (80%) rated the lesson difficulty as at the “right level”, and 91% would recommend it to others.

Conclusions: eLearning increased knowledge and confidence to manage FS amongst allied health professionals and was well-accepted.

Registration: ACTRN12616000296437 https://anzctr.org.au/Trial/Registration/TrialReview.aspx?id=370222&isReview=true.

Source: Jones MD, Casson SM, Barry BK, Li SH, Valenzuela T, Cassar J, Lamanna C, Lloyd AR, Sandler CX. eLearning improves allied health professionals’ knowledge and confidence to manage medically unexplained chronic fatigue states: A randomized controlled trial. J Psychosom Res. 2023 Aug 16;173:111462. doi: 10.1016/j.jpsychores.2023.111462. Epub ahead of print. PMID: 37619433. https://www.sciencedirect.com/science/article/pii/S0022399923003197 (Full text)

A Scoping Review of Pacing for Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Lessons Learned for the Long COVID Pandemic

Abstract:

Background: Controversy over treatment for people with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a barrier to appropriate treatment. Energy management or pacing is a prominent coping strategy for people with ME/CFS that involves regulating activity to avoid post exertional malaise (PEM), the worsening of symptoms after an activity. Until now, characteristics of pacing, and the effects on patients’ symptoms had not been systematically reviewed. This is problematic as the most common approach to pacing, pacing prescription, and the pooled efficacy of pacing was unknown. Collating evidence may help advise those suffering with similar symptoms, including long COVID, as practitioners would be better informed on methodological approaches to adopt, pacing implementation, and expected outcomes.

Objectives: In this scoping review of the literature, we aggregated type of, and outcomes of, pacing in people with ME/CFS. Eligibility criteria: Original investigations concerning pacing were considered in participants with ME/CFS. Sources of evidence: Six electronic databases (PubMed, Scholar, ScienceDirect, Scopus, Web of Science and the Cochrane Central Register of Controlled Trials [CENTRAL]) were searched; and websites MEPedia, Action for ME, and ME Action were also searched for grey literature.

Methods: A scoping review was conducted. Review selection and characterisation was performed by two independent reviewers using pretested forms.

Results: Authors reviewed 177 titles and abstracts, resulting in included 17 studies: three randomised control trials (RCTs); one uncontrolled trial; one interventional case series; one retrospective observational study; two prospective observational studies; four cross-sectional observational studies; and five cross-sectional analytical studies. Studies included variable designs, durations, and outcome measures. In terms of pacing administration, studies used educational sessions and diaries for activity monitoring. Eleven studies reported benefits of pacing, four studies reported no effect, and two studies reported a detrimental effect in comparison to the control group.

Conclusions: Highly variable study designs and outcome measures, allied to poor to fair methodological quality resulted in heterogenous findings and highlights the requirement for more research examining pacing. Looking to the long COVID pandemic, future studies should be RCTs utilising objectively quantified digitised pacing, over a longer duration of examination, using the core outcome set for patient reported outcome measures.

Source: Nilihan Sanal-Hayes, Marie Mclaughlin, Lawrence D D Hayes, Jacqueline Mair, Jane Ormerod, David Carless, Natalie Hilliard, Rachel Meach, Joanne Ingram, Nicholas Sculthorpe. A Scoping Review of Pacing for Management of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Lessons Learned for the Long COVID Pandemic.