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Rabaey P, Decat P, Heytens S, Vogelaers D, Mariman A, Demeester T. Time-dependent complexity characterisation of activity patterns in patients with Chronic Fatigue Syndrome. Biopsychosoc Med 2024; 18:10. [PMID: 38566157 PMCID: PMC10986074 DOI: 10.1186/s13030-024-00305-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/16/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Chronic Fatigue Syndrome patients suffer from symptoms that cannot be explained by a single underlying biological cause. It is sometimes claimed that these symptoms are a manifestation of a disrupted autonomic nervous system. Prior works studying this claim from the complex adaptive systems perspective, have observed a lower average complexity of physical activity patterns in chronic fatigue syndrome patients compared to healthy controls. To further study the robustness of such methods, we investigate the within-patient changes in complexity of activity over time. Furthermore, we explore how these changes might be related to changes in patient functioning. METHODS We propose an extension of the allometric aggregation method, which characterises the complexity of a physiological signal by quantifying the evolution of its fractal dimension. We use it to investigate the temporal variations in within-patient complexity. To this end, physical activity patterns of 7 patients diagnosed with chronic fatigue syndrome were recorded over a period of 3 weeks. These recordings are accompanied by physicians' judgements in terms of the patients' weekly functioning. RESULTS We report significant within-patient variations in complexity over time. The obtained metrics are shown to depend on the range of timescales for which these are evaluated. We were unable to establish a consistent link between complexity and functioning on a week-by-week basis for the majority of the patients. CONCLUSIONS The considerable within-patient variations of the fractal dimension across scales and time force us to question the utility of previous studies that characterise long-term activity signals using a single static complexity metric. The complexity of a Chronic Fatigue Syndrome patient's physical activity signal does not suffice to characterise their high-level functioning over time and has limited potential as an objective monitoring metric by itself.
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Affiliation(s)
- Paloma Rabaey
- IDLab, Department of Information Technology, Ghent University - imec, Ghent, Belgium.
| | - Peter Decat
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
| | - Stefan Heytens
- Department of Public Health and Primary Care, Ghent University, Ghent, Belgium
| | - Dirk Vogelaers
- Center of Integrative Medicine, Department of Physical Medicine and Rehabilitation, University Hospital Ghent, Ghent, Belgium
- Department of General Internal Medicine, AZ Delta, Roeselare, Belgium
| | - An Mariman
- Center of Integrative Medicine, Department of Physical Medicine and Rehabilitation, University Hospital Ghent, Ghent, Belgium
| | - Thomas Demeester
- IDLab, Department of Information Technology, Ghent University - imec, Ghent, Belgium
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Seton KA, Espejo-Oltra JA, Giménez-Orenga K, Haagmans R, Ramadan DJ, Mehlsen J. Advancing Research and Treatment: An Overview of Clinical Trials in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) and Future Perspectives. J Clin Med 2024; 13:325. [PMID: 38256459 PMCID: PMC10816159 DOI: 10.3390/jcm13020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/22/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic, debilitating, and multi-faceted illness. Heterogenous onset and clinical presentation with additional comorbidities make it difficult to diagnose, characterize, and successfully treat. Current treatment guidelines focus on symptom management, but with no clear target or causative mechanism, remission rates are low, and fewer than 5% of patients return to their pre-morbid activity levels. Therefore, there is an urgent need to undertake robust clinical trials to identify effective treatments. This review synthesizes insights from clinical trials exploring pharmacological interventions and dietary supplements targeting immunological, metabolic, gastrointestinal, neurological, and neuroendocrine dysfunction in ME/CFS patients which require further exploration. Additionally, the trialling of alternative interventions in ME/CFS based on reported efficacy in the treatment of illnesses with overlapping symptomology is also discussed. Finally, we provide important considerations and make recommendations, focusing on outcome measures, to ensure the execution of future high-quality clinical trials to establish clinical efficacy of evidence-based interventions that are needed for adoption in clinical practice.
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Affiliation(s)
- Katharine A. Seton
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK;
| | - José A. Espejo-Oltra
- Max Delbrück Center for Molecular Medicine, Robert-Rössle-Straße 10, 13125 Berlin, Germany;
- Department of Pathology, School of Health Sciences, Universidad Católica de Valencia, San Vicente Mártir, 46001 Valencia, Spain
| | - Karen Giménez-Orenga
- Escuela de Doctorado, Universidad Católica de Valencia, San Vicente Mártir, 46001 Valencia, Spain;
| | - Rik Haagmans
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK;
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
| | - Donia J. Ramadan
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Kirkeveien 166, 0450 Oslo, Norway;
| | - Jesper Mehlsen
- Surgical Pathophysiology Unit, Rigshospitalet, University of Copenhagen, 2100 Copenhagen, Denmark;
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3
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van Campen C(LMC, Rowe PC, Visser FC. Validation of the Severity of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome by Other Measures than History: Activity Bracelet, Cardiopulmonary Exercise Testing and a Validated Activity Questionnaire: SF-36. Healthcare (Basel) 2020; 8:healthcare8030273. [PMID: 32823979 PMCID: PMC7551321 DOI: 10.3390/healthcare8030273] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 11/29/2022] Open
Abstract
Introduction: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a severe and disabling chronic disease. Grading patient’s symptom and disease severity for comparison and therapeutic decision-making is necessary. Clinical grading that depends on patient self-report is subject to inter-individual variability. Having more objective measures to grade and confirm clinical grading would be desirable. Therefore, the aim of this study was to validate the clinical severity grading that has been proposed by the authors of the ME International Consensus Criteria (ICC) using more standardized measures like questionnaires, and objective measures such as physical activity tracking and cardiopulmonary exercise testing. Methods and results: The clinical database of a subspecialty ME/CFS clinic was searched for patients who had completed the SF 36 questionnaire, worn a SensewearTM armband for five days, and undergone a cardiopulmonary exercise test. Only patients who completed all three investigations within 3 months from each other—to improve the likelihood of stable disease—were included in the analysis. Two-hundred-eighty-nine patients were analyzed: 121 were graded as mild, 98 as moderate and 70 as having severe disease. The mean (SD) physical activity subscale of the SF-36 was 70 (11) for mild, 43 (8) for moderate and 15 (10) for severe ME/CFS patients. The mean (SD) number of steps per day was 8235 (1004) for mild, 5195 (1231) for moderate and 2031 (824) for severe disease. The mean (SD) percent predicted oxygen consumption at the ventilatory threshold was 47 (11)% for mild, 38 (7)% for moderate and 30 (7)% for severe disease. The percent peak oxygen consumption was 90 (14)% for mild, 64 (8)% for moderate and 48 (9)% for severe disease. All comparisons were p < 0.0001. Conclusion: This study confirms the validity of the ICC severity grading. Grading assigned by clinicians on the basis of patient self-report created groups that differed significantly on measures of activity using the SF-36 physical function subscale and objective measures of steps per day and exercise capacity. There was variability in function within severity grading groups, so grading based on self-report can be strengthened by the use of these supplementary measures.
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Affiliation(s)
| | - Peter C. Rowe
- Department of Paediatrics, John Hopkins University School of Medicine, Baltimore, MD 21205, USA;
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4
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Patterns of daytime physical activity in patients with chronic fatigue syndrome. J Psychosom Res 2020; 135:110154. [PMID: 32504895 DOI: 10.1016/j.jpsychores.2020.110154] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 01/23/2023]
Abstract
OBJECTIVES To classify patients with chronic fatigue syndrome (CFS) by pattern of physical activity and determine the clinical associations of each type. METHODS 579 out of 641 participants with CFS from the PACE (Pacing, graded Activity, Cognitive behavioural therapy: a randomised Evaluation) trial wore an Actiwatch (accelerometer) for between 3 and 7 days before any trial treatments, which provided a measure of physical activity. Participants' activity was categorised into one of four patterns (pervasively inactive, pervasively active, boom and bust, or indeterminate) primarily using a priori definitions of activity. Clinical associations were sought with each group using an exploratory logistic regression with the indeterminate activity group being the reference group. RESULTS 124 (21%) of the participants were classified as pervasively inactive, 65 (11%) as pervasively active, 172 (30%) showed a 'boom and bust' pattern of activity, and 218 (38%) had an indeterminate pattern. Pervasively inactive patients were more physically disabled, those in the pervasively active group were more anxious, and those in the boom and bust group had more sleep disturbance. CONCLUSION We were able to classify patients with CFS into groups by their daytime activity pattern. The different patterns of activity were associated with important clinical variables, suggesting that they might be helpful in determining prognosis and targeting treatments. These associations need replication.
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van Campen CMC, Rowe PC, Verheugt FWA, Visser FC. Physical activity measures in patients with myalgic encephalomyelitis/chronic fatigue syndrome: correlations between peak oxygen consumption, the physical functioning scale of the SF-36 questionnaire, and the number of steps from an activity meter. J Transl Med 2020; 18:228. [PMID: 32513266 PMCID: PMC7282044 DOI: 10.1186/s12967-020-02397-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 06/01/2020] [Indexed: 11/13/2022] Open
Abstract
Background Most studies to assess effort intolerance in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) have used questionnaires. Few studies have compared questionnaires with objective measures like an actometer or an exercise test. This study compared three measures of physical activity in ME/CFS patients: the physical functioning scale (PFS) of the SF-36, the number of steps/day (Steps) using an actometer, and the %peak VO2 of a cardiopulmonary stress test. Methods Female ME/CFS patients were selected from a clinical database if the three types of measurements were available, and the interval between measurements was ≤ 3 months. Data from the three measures were compared by linear regression. Results In 99 female patients the three different measures were linearly, significantly, and positively correlated (PFS vs Steps, PFS vs %peak VO2 and Steps vs %peak VO2: all P < 0.001). Subgroup analysis showed that the relations between the three measures were not different in patients with versus without fibromyalgia and with versus without a maximal exercise effort (RER ≥ 1.1). In 20 patients re-evaluated for symptom worsening, the mean of all three measures was significantly lower (P < 0.0001), strengthening the observation of the relations between them. Despite the close correlation, we observed a large variation between the three measures in individual patients. Conclusions Given the large variation in ME/CFS patients, the use of only one type of measurement is inadequate. Integrating the three modalities may be useful for patient care by detecting overt discrepancies in activity and may inform studies that compare methods of improving exercise capacity.
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Affiliation(s)
- C M C van Campen
- Stichting CardioZorg, Planetenweg 5, 2132 HN, Hoofddorp, The Netherlands
| | - Peter C Rowe
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, USA.
| | - Freek W A Verheugt
- Onze Lieve Vrouwe Gasthuis (OLVG), Oosterpark 9, 1091 AC, Amsterdam, The Netherlands
| | - Frans C Visser
- Stichting CardioZorg, Planetenweg 5, 2132 HN, Hoofddorp, The Netherlands
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Pedersen M, Asprusten TT, Godang K, Leegaard TM, Osnes LT, Skovlund E, Tjade T, Øie MG, Wyller VBB. Lifestyle factors during acute Epstein-Barr virus infection in adolescents predict physical activity six months later. Acta Paediatr 2019; 108:1521-1526. [PMID: 30685875 DOI: 10.1111/apa.14728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/27/2018] [Accepted: 01/22/2019] [Indexed: 01/14/2023]
Abstract
AIM Acute Epstein-Barr virus (EBV) infection is a trigger of prolonged fatigue. This study investigated baseline predictors of physical activity six months after an acute EBV infection. METHODS A total of 200 adolescents (12-20 years old) with acute EBV infection were assessed for 149 possible baseline predictors and followed prospectively. In this exploratory study, we performed linear regression analysis to assess possible associations between baseline predictors and steps per day at six months. RESULTS In the final multiple linear regression model, physical activity six months after acute EBV infection was significantly and independently predicted by baseline physical activity (steps per day), substance use (alcohol and illicit drugs) and human growth hormone (adjusted R2 = 0.20). CONCLUSION Baseline physical activity, substance use and plasma growth hormone are independent predictors of physical activity six months after an acute EBV infection in adolescents, whereas markers of the infection and associated immune response do not seem to be associated with physical activity six months later.
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Affiliation(s)
- Maria Pedersen
- Department of Pediatrics; Vestre Viken Hospital Trust; Drammen Norway
| | | | - Kristin Godang
- Section of Specialized Endocrinology; Department of Endocrinology; Oslo University Hospital; Oslo Norway
| | - Truls Michael Leegaard
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Department of Microbiology and Infectional Control; Akershus University Hospital; Lørenskog Norway
| | - Liv Toril Osnes
- Department of Immunology; Oslo University Hospital; Oslo Norway
| | - Eva Skovlund
- Norwegian Institute of Public Health; Oslo Norway
| | | | - Merete Glenne Øie
- Department of Psychology; University of Oslo; Oslo Norway
- Research Division; Innlandet Hospital Trust; Lillehammer Norway
| | - Vegard Bruun Bratholm Wyller
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Department of Pediatrics; Akershus University Hospital; Lørenskog Norway
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7
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Parwanta Z, Chan-Thim E, Moullec G, Pepin V. Diurnal Physical Activity Patterns in Patients With Chronic Obstructive Pulmonary Disease. J Cardiopulm Rehabil Prev 2018; 38:E9-E11. [PMID: 30138214 DOI: 10.1097/hcr.0000000000000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE People with chronic obstructive pulmonary disease (COPD) have reduced physical activity (PA) levels compared with healthy controls. The pattern of their PA level during the day is much less documented. A better understanding of these diurnal PA patterns could help optimize interventions targeting PA levels in this population. The aim of this study was to examine, in patients with COPD, diurnal PA patterns using accelerometer data and different approaches to data handling (arbitrary, mealtime, equal tertiles). METHODS Fourteen COPD patients (aged 71 ± 9 yr; forced expiratory volume in 1 sec [FEV1]: 58% ± 13% predicted) completed the study. Daily PA was assessed via accelerometry for 7 d, 24 hr/d. Diurnal PA patterns were evaluated using an arbitrary (08:00-12:00, 12:01-16:00, 16:01-20:00), mealtime (wake time-lunchtime, lunchtime-suppertime, suppertime-bedtime), and equal tertiles (tertiles 1, 2, and 3) approaches. Results were interpreted on the basis of descriptive statistics and effect sizes (Cohen f) for time-of-day changes in PA. RESULTS Regardless of the handling approach used, mean PA levels decreased in the evening and the effect size for time-of-day changes in PA level was large (f = 0.97; 1.82; and 1.66 for the arbitrary, mealtimes, and tertiles approaches, respectively). The observation of a decrease in the evening was highly homogeneous across our sample, particularly with the mealtime and equal tertiles handling approach. CONCLUSION Results from this study support prior findings that PA levels decrease substantially in the evening in patients with COPD, thereby providing a better understanding of within-day PA behavior and offering valuable insight into interventions targeting PA.
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Affiliation(s)
- Zohra Parwanta
- Department of Exercise Science (Ms Parwanta and Drs Chan-Thim and Pepin) and PERFORM Centre (Drs Chan-Thim and Pepin), Concordia University, Montreal, Quebec, Canada; Axe maladies chroniques, Centre de recherche de l'Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada (Ms Parwanta and Drs Chan-Thim, Moullec, and Pepin); and École de santé publique, Université de Montréal, Montreal, Quebec, Canada (Dr Moullec)
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Harmelink KEM, Zeegers AVCM, Tönis TM, Hullegie W, Nijhuis-van der Sanden MWG, Staal JB. The effectiveness of the use of a digital activity coaching system in addition to a two-week home-based exercise program in patients after total knee arthroplasty: study protocol for a randomized controlled trial. BMC Musculoskelet Disord 2017; 18:290. [PMID: 28679400 PMCID: PMC5498982 DOI: 10.1186/s12891-017-1647-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 06/27/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is consistent evidence that supervised programs are not superior to home-based programs after total knee arthroplasty (TKA), especially in patients without complications. Home-based exercise programs are effective, but we hypothesize that their effectiveness can be improved by increasing the adherence to physical therapy advice to reach an adequate exercise level during the program and thereafter. Our hypothesis is that an activity coaching system (accelerometer-based activity sensor), alongside a home-based exercise program, will increase adherence to exercises and the activity level, thereby improving physical functioning and recovery. The objective of this study is to determine the effectiveness of an activity coaching system in addition to a home-based exercise program after a TKA compared to only the home-based exercise program with physical functioning as outcome. METHODS This study is a single-blind randomized controlled trial. Both the intervention (n = 55) and the control group (n = 55) receive a two-week home-based exercise program, and the intervention group receives an additional activity coaching system. This is a hand-held electronic device together with an app on a smartphone providing information and advice on exercise behavior during the day. The primary outcome is physical functioning, measured with the Timed Up and Go test (TUG) after two weeks, six weeks and three months. Secondary outcomes are 1) adherence to the activity level (activity diary); 2) physical functioning, measured with the 2-Minute Walk Test (2MWT) and the Knee Osteoarthritis Outcome Score; 3) quality of life (SF-36); 4) healthcare use up to one year postoperatively and 5) cost-effectiveness. Data are collected preoperatively, three days, two and six weeks, three months and one year postoperatively. DISCUSSION The strengths of the study are the use of both performance-based tests and self-reported questionnaires and the personalized tailored program after TKA given by specialized physical therapists. Its weakness is the lack of blinding of the participants to treatment allocation. Outcomes are generalizable to uncomplicated patients as defined in the inclusion criteria. TRIAL REGISTRATION The trial is registered in the Dutch Trial Register ( www.trialregister.nl , NTR 5109) (March 22, 2015).
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Affiliation(s)
- Karen E M Harmelink
- FysioHolland Twente, Geessinkbrink 7, 7544 CW, Enschede, the Netherlands. .,Radboud Institute for Health Sciences, IQ Healthcare, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - A V C M Zeegers
- Medisch Spectrum Twente (MST), Koningsplein 1, 7512 KZ, Enschede, the Netherlands
| | - Thijs M Tönis
- Roessingh Research & Development (RRD), Telemedicine group, Roessinghsbleekweg 33b, 7522 AH, Enschede, the Netherlands.,Faculty of Electrical Engineering, Mathematics and Computer Science, Telemedicine group, University of Twente, P.O. Box 217, 7500 AE, Enschede, the Netherlands
| | - Wim Hullegie
- Fysiotherapie Hullegie & Richter, Geessinkbrink 7, 7544 CW, Enschede, the Netherlands
| | | | - J Bart Staal
- Radboud Institute for Health Sciences, IQ Healthcare, Radboud University Medical Center, Nijmegen, the Netherlands.,Faculty of Health and Social Studies, Research Group Musculoskeletal Rehabilitation, HAN University of Applied Sciences, Nijmegen, the Netherlands
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Vergauwen K, Huijnen IP, Depuydt A, Van Regenmortel J, Meeus M. Measuring the physical activity level and pattern in daily life in persons with chronic fatigue syndrome/myalgic encephalomyelitis: a systematic review. PHYSICAL THERAPY REVIEWS 2017. [DOI: 10.1080/10833196.2017.1300624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Kuni Vergauwen
- Division of Occupational Therapy, Department of Health and Social Care, Artesis Plantijn University College Antwerp , Antwerp, Belgium
- Faculty of Medicine and Health Sciences, Department of Occupational Therapy, Ghent University , Ghent, Belgium
- Pain in Motion Research Group , Belgium
| | - Ivan P.J. Huijnen
- Department of Rehabilitation Medicine, Research School CAPHRI, Maastricht University , Maastricht, The Netherlands
- Adelante Centre of Expertise in Rehabilitation and Audiology , Hoensbroek, The Netherlands
- Department of Rehabilitation Medicine, Academic Hospital Maastricht , Maastricht, The Netherlands
| | - Astrid Depuydt
- Faculty of Medicine and Health Sciences, Department of Occupational Therapy, Ghent University , Ghent, Belgium
| | - Jasmine Van Regenmortel
- Faculty of Medicine and Health Sciences, Department of Occupational Therapy, Ghent University , Ghent, Belgium
| | - Mira Meeus
- Faculty of Medicine and Health Sciences, Department of Rehabilitation Sciences and Physiotherapy, Ghent University , Ghent, Belgium
- Faculty of Medicine and Health Sciences, Department of Rehabilitation Sciences and Physiotherapy, University of Antwerp , Antwerp, Belgium
- Pain in Motion Research Group , Belgium
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Band R, Barrowclough C, Caldwell K, Emsley R, Wearden A. Activity patterns in response to symptoms in patients being treated for chronic fatigue syndrome: An experience sampling methodology study. Health Psychol 2017; 36:264-269. [PMID: 27819461 PMCID: PMC5327891 DOI: 10.1037/hea0000422] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 07/19/2016] [Accepted: 07/20/2016] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Cognitive-behavioral models of chronic fatigue syndrome (CFS) propose that patients respond to symptoms with 2 predominant activity patterns-activity limitation and all-or-nothing behaviors-both of which may contribute to illness persistence. The current study investigated whether activity patterns occurred at the same time as, or followed on from, patient symptom experience and affect. METHOD Twenty-three adults with CFS were recruited from U.K. CFS services. Experience sampling methodology (ESM) was used to assess fluctuations in patient symptom experience, affect, and activity management patterns over 10 assessments per day for a total of 6 days. Assessments were conducted within patients' daily life and were delivered through an app on touchscreen Android mobile phones. Multilevel model analyses were conducted to examine the role of self-reported patient fatigue, pain, and affect as predictors of change in activity patterns at the same and subsequent assessment. RESULTS Current experience of fatigue-related symptoms and pain predicted higher patient activity limitation at the current and subsequent assessments whereas subjective wellness predicted higher all-or-nothing behavior at both times. Current pain predicted less all-or-nothing behavior at the subsequent assessment. In contrast to hypotheses, current positive affect was predictive of current activity limitation whereas current negative affect was predictive of current all-or-nothing behavior. Both activity patterns varied at the momentary level. CONCLUSIONS Patient symptom experiences appear to be driving patient activity management patterns in line with the cognitive-behavioral model of CFS. ESM offers a useful method for examining multiple interacting variables within the context of patients' daily life. (PsycINFO Database Record
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Affiliation(s)
- Rebecca Band
- School of Psychological Sciences and Manchester Centre for Health Psychology, University of Manchester
| | - Christine Barrowclough
- School of Psychological Sciences and Manchester Centre for Health Psychology, University of Manchester
| | - Kim Caldwell
- School of Psychological Sciences and Manchester Centre for Health Psychology, University of Manchester
| | - Richard Emsley
- Centre for Biostatistics, Institute of Population Health, University of Manchester
| | - Alison Wearden
- School of Psychological Sciences and Manchester Centre for Health Psychology, University of Manchester
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Abstract
OBJECTIVE To determine appropriate management of the active individual with infectious mononucleosis (IM), including issues of diagnosis, the determination of splenomegaly, and other measures of disease status, the relationship of the disease to chronic fatigue syndrome (CFS), and the risks of exercise at various points in the disease process. DATA SOURCES An Ovid/MEDLINE search (January 1996-June 2015) was widely supplemented by "similar articles" found in Ovid/MEDLINE and PubMed, reference lists, and personal files. MAIN RESULTS Clinical diagnoses of IM are unreliable. Traditional laboratory indicators (lymphocytosis, abnormal lymphocytes, and a heterophile-positive slide test) can be supplemented by more sensitive and more specific but also more costly Epstein-Barr antigen determinations. Clinical estimates of splenomegaly are fallible. Laboratory determinations, commonly by 2D ultrasonography, must take account of methodology, the formulae used in calculations and the individual's body size. The SD of normal values matches the typical increase of size in IM, but repeat measurements can help to monitor regression of the disease. The main risks to the athlete are spontaneous splenic rupture (seen in 0.1%-0.5% of patients and signaled by acute abdominal pain) and progression to chronic fatigue, best avoided by 3 to 4 weeks of restricted activity followed by graded reconditioning. A full recovery of athletic performance is usual with 2 to 3 months of conservative management. CONCLUSIONS Infectious mononucleosis is a common issue for young athletes. But given accurate diagnosis and the avoidance of splenic rupture and progression to CFS through a few weeks of restricted activity, long-term risks to the health of athletes are few.
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Wyller VB, Vitelli V, Sulheim D, Fagermoen E, Winger A, Godang K, Bollerslev J. Altered neuroendocrine control and association to clinical symptoms in adolescent chronic fatigue syndrome: a cross-sectional study. J Transl Med 2016; 14:121. [PMID: 27149955 PMCID: PMC4858924 DOI: 10.1186/s12967-016-0873-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 04/20/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic fatigue syndrome (CFS) is a common and disabling disorder, and a major threat against adolescent health. The pathophysiology is unknown, but alteration of neuroendocrine control systems might be a central element, resulting in attenuation of the hypothalamus-pituitary-adrenalin (HPA) axis and enhancement of the sympathetic/adrenal medulla (SAM) system. This study explored differences in neuroendocrine control mechanisms between adolescent CFS patients and healthy controls, and whether characteristics of the control mechanisms are associated with important clinical variables within the CFS group. METHODS CFS patients 12-18 years of age were recruited nation-wide to a single referral center as part of the NorCAPITAL project. A broad case definition of CFS was applied. A comparable group of healthy controls were recruited from local schools. A total of nine hormones were assayed and subjected to network analyses using the ARACNE algorithm. Symptoms were charted by a questionnaire, and daily physical activity was recorded by an accelerometer. RESULTS A total of 120 CFS patients and 68 healthy controls were included. CFS patients had significantly higher levels of plasma norepinephrine, plasma epinephrine and plasma FT4, and significantly lower levels of urine cortisol/creatinine ratio. Subgrouping according to other case definitions as well as adjusting for confounding factors did not alter the results. Multivariate linear regression models as well as network analyses revealed different interrelations between hormones of the HPA axis, the SAM system, and the thyroid system in CFS patients and healthy controls. Also, single hormone degree centrality was associated with clinical markers within the CFS group. CONCLUSION This study reveals different interrelation between hormones of the HPA axis, the SAM system, and the thyroid system in CFS patients and healthy controls, and an association between hormone control characteristics and important clinical variables in the CFS group. These results add to the growing insight of CFS disease mechanisms. Trial registration Clinical Trials NCT01040429.
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Affiliation(s)
- Vegard Bruun Wyller
- />Division of Medicine and Laboratory Sciences, Medical Faculty, University of Oslo, Oslo, Norway
- />Department of Paediatrics, Akershus University Hospital, Nordbyhagen, 1478 Lørenskog, Norway
| | - Valieria Vitelli
- />Department of Biostatistics, Institute of Basic Medical Sciences, Oslo Centre for Biostatistics and Epidemiology, University of Oslo, Oslo, Norway
| | - Dag Sulheim
- />Department of Paediatrics, Oslo University Hospital, Oslo, Norway
- />Department of Paediatrics, Lillehammer County Hospital, Lillehammer, Norway
| | - Even Fagermoen
- />Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
- />Department of Anesthesiology and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Anette Winger
- />Institute of Nursing Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - Kristin Godang
- />Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Jens Bollerslev
- />Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, Oslo, Norway
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13
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Hermens H, op den Akker H, Tabak M, Wijsman J, Vollenbroek M. Personalized Coaching Systems to support healthy behavior in people with chronic conditions. J Electromyogr Kinesiol 2015; 24:815-26. [PMID: 25455254 DOI: 10.1016/j.jelekin.2014.10.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/04/2014] [Accepted: 10/06/2014] [Indexed: 10/24/2022] Open
Abstract
Chronic conditions cannot be cured but daily behavior has a major effect on the severity of secondary problems and quality of life. Changing behavior however requires intensive support in daily life, which is not feasible with a human coach. A new coaching approach - so-called Personal Coaching Systems (PCSs) - use on-body sensing, combined with smart reasoning and context-aware feedback to support users in developing and maintaining a healthier behavior. Three different PCSs will be used to illustrate the different aspects of this approach: (1) Treatment of neck/shoulder pain. EMG patterns of the Trapezius muscles are used to estimate their level of relaxation. Personal vibrotactile feedback is given, to create awareness and enable learning when muscles are insufficiently relaxed. (2) Promoting a healthy activity pattern. Using a 3D accelerometer to measure activity and a smartphone to provide feedback. Timing and content of the feedback are adapted real-time, using machine-learning techniques, to optimize adherence. (3) Management of stress during daily living. The level of stress is quantified using a personal model involving a combination of different sensor signals (EMG, ECG, skin conductance, respiration). Results show that Personal Coaching Systems are feasible and a promising and challenging way forward to coach people with chronic conditions.
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Affiliation(s)
- H Hermens
- Roessingh Research and Development, Telemedicine Group, P.O. Box 310, 7500 AH Enschede, The Netherlands.
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Timmerman JG, Dekker-van Weering MGH, Tönis TM, Hermens HJ, Vollenbroek-Hutten MMR. Relationship between patterns of daily physical activity and fatigue in cancer survivors. Eur J Oncol Nurs 2014; 19:162-8. [PMID: 25456973 DOI: 10.1016/j.ejon.2014.09.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 09/12/2014] [Accepted: 09/23/2014] [Indexed: 11/24/2022]
Abstract
PURPOSE This study investigated: (1) physical activity behaviour of cancer survivors throughout the day, (2) the relationship between objective and subjective measures of physical activity, and (3) the relationship between daily physical activity and fatigue. METHOD Physical activity was measured objectively using 3D-accelerometry (expressed in counts per minute (cpm)), and subjectively using a Visual Analogue Scale (VAS; 0-10) implemented on a smartphone in 18 cancer survivors (6 male; age 55.7 ± 10.2 yrs; free from cancer, last treatment ≥three months previously), and matched controls. Fatigue was scored thrice daily on a smartphone (0-10 VAS). RESULTS Mean daily physical activity of cancer survivors did not deviate from controls (1108 ± 287 cpm versus 1223 ± 371 cpm, p = .305). However, in cancer survivors physical activity significantly decreased from morning to evening (p < .01) and increased levels of fatigue throughout the day were reported (p < .01). Furthermore, a positive correlation was found between levels of fatigue and the magnitude of the decline in physical activity from afternoon to evening (p < .05). Objective and subjective measured physical activity showed low correlations. CONCLUSIONS This study demonstrated imbalanced activity patterns in cancer survivors. Also, the more a survivor felt fatigued, the greater the decline in activity behaviour throughout the day. The low correlation between objective and subjective physical activity suggests low awareness in cancer survivors about their daily physical activity performed. Ambulatory monitoring provides new insights in both patterns of physical activity and fatigue, which might be a valuable tool to provide activity management more efficiently during treatment of fatigue.
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Affiliation(s)
- J G Timmerman
- Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands; University of Twente, Faculty of Electrical Engineering, Biomedical Signals and Systems, Telemedicine Group, Post Box 217, 7500 AE Enschede, The Netherlands.
| | - M G H Dekker-van Weering
- Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands.
| | - T M Tönis
- Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands; University of Twente, Faculty of Electrical Engineering, Biomedical Signals and Systems, Telemedicine Group, Post Box 217, 7500 AE Enschede, The Netherlands.
| | - H J Hermens
- Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands; University of Twente, Faculty of Electrical Engineering, Biomedical Signals and Systems, Telemedicine Group, Post Box 217, 7500 AE Enschede, The Netherlands.
| | - M M R Vollenbroek-Hutten
- Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands; University of Twente, Faculty of Electrical Engineering, Biomedical Signals and Systems, Telemedicine Group, Post Box 217, 7500 AE Enschede, The Netherlands.
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15
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Blikman LJ, van Meeteren J, Horemans HL, Kortenhorst IC, Beckerman H, Stam HJ, Bussmann JB. Is physical behavior affected in fatigued persons with multiple sclerosis? Arch Phys Med Rehabil 2014; 96:24-9. [PMID: 25239283 DOI: 10.1016/j.apmr.2014.08.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/27/2014] [Accepted: 08/31/2014] [Indexed: 10/24/2022]
Abstract
OBJECTIVE To study physical behavior in detail in fatigued persons with multiple sclerosis (MS). DESIGN Case-control explorative study. SETTING Outpatient rehabilitation department and participants' daily environment. PARTICIPANTS Fatigued persons with MS (n=23) were selected from a randomized controlled trial. Cases were matched by age and sex to healthy, nonfatigued controls (n=23). Eligible persons with MS were severely fatigued (Checklist Individual Strength fatigue domain mean score, 43.2±6.6) and ambulatory (Expanded Disability Status Scale mean score, 2.5±1.5). INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Measurements were performed using an accelerometer over 7 days. Outcomes included the following: amount of physical activity expressed in counts per day, counts per minute (CPM), and counts per day period (morning, afternoon, evening); duration of activity intensity categories (sedentary, light physical activity, moderate-to-vigorous physical activity [MVPA]); and distribution of MVPA and sedentary periods over the day. RESULTS Persons with MS had fewer counts per day (mean difference, -156×10(3); 95% confidence interval [CI], -273×10(3) to -39×10(3); P=.010), had fewer CPM (mean difference, -135; 95% CI, -256 to -14; P=.030), and were less physically active in the morning (mean difference, -200; 95% CI, -389 to -11; P=.039) and evening (mean difference, -175; 95% CI, -336 to -14; P=.034) than controls. Persons with MS spent a higher percentage of their time sedentary (mean difference, 5.6; 95% CI, .1-11.1; P=.045) and spent less time at the higher MVPA intensity (mean difference, -2.4; 95% CI, -4.7 to -0.09; P=.042). They had fewer MVPA periods (mean difference, 29; 95% CI, -56.2 to -2.6; P=.032) and a different distribution of sedentary (mean difference, .033; 95% CI, .002 to .064; P=.039) and MVPA periods (mean difference, -.08; 95% CI, -.15 to -.01; P=.023). CONCLUSIONS Detailed analyses of physical behavior showed that ambulatory fatigued persons with MS do differ from healthy controls not only in physical activity level, but also in other physical behavior dimensions (eg, day patterns, intensity, distribution).
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Affiliation(s)
- Lyan J Blikman
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
| | - Jetty van Meeteren
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Herwin L Horemans
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Ilse C Kortenhorst
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Heleen Beckerman
- Department of Rehabilitation Medicine, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Henk J Stam
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Johannes B Bussmann
- Department of Rehabilitation Medicine, Erasmus MC University Medical Center, Rotterdam, The Netherlands
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16
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Boerema ST, van Velsen L, Schaake L, Tönis TM, Hermens HJ. Optimal sensor placement for measuring physical activity with a 3D accelerometer. SENSORS 2014; 14:3188-206. [PMID: 24553085 PMCID: PMC3958275 DOI: 10.3390/s140203188] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 01/24/2014] [Accepted: 02/07/2014] [Indexed: 01/23/2023]
Abstract
Accelerometer-based activity monitors are popular for monitoring physical activity. In this study, we investigated optimal sensor placement for increasing the quality of studies that utilize accelerometer data to assess physical activity. We performed a two-staged study, focused on sensor location and type of mounting. Ten subjects walked at various walking speeds on a treadmill, performed a deskwork protocol, and walked on level ground, while simultaneously wearing five ProMove2 sensors with a snug fit on an elastic waist belt. We found that sensor location, type of activity, and their interaction-effect affected sensor output. The most lateral positions on the waist belt were the least sensitive for interference. The effect of mounting was explored, by making two subjects repeat the experimental protocol with sensors more loosely fitted to the elastic belt. The loose fit resulted in lower sensor output, except for the deskwork protocol, where output was higher. In order to increase the reliability and to reduce the variability of sensor output, researchers should place activity sensors on the most lateral position of a participant's waist belt. If the sensor hampers free movement, it may be positioned slightly more forward on the belt. Finally, sensors should be fitted tightly to the body.
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Affiliation(s)
- Simone T Boerema
- Telemedicine Group, Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands.
| | - Lex van Velsen
- Telemedicine Group, Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands.
| | - Leendert Schaake
- Telemedicine Group, Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands.
| | - Thijs M Tönis
- Telemedicine Group, Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands.
| | - Hermie J Hermens
- Telemedicine Group, Roessingh Research and Development, P.O. Box 310, 7500 AH, Enschede, The Netherlands.
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Telemonitoring of Daily Activity and Symptom Behavior in Patients with COPD. Int J Telemed Appl 2012; 2012:438736. [PMID: 23227041 PMCID: PMC3512293 DOI: 10.1155/2012/438736] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 10/10/2012] [Accepted: 10/23/2012] [Indexed: 11/18/2022] Open
Abstract
Objectives. This study investigated the activity behavior of patients with COPD in detail compared to asymptomatic controls, and the relationship between subjective and objective activities (awareness), and readiness to change activity behavior. Methods. Thirty-nine patients with COPD (66.0 years; FEV1% predicted: 44.9%) and 21 healthy controls (57.0 years) participated. Objective daily activity was assessed by accelerometry and expressed as amount of activity in counts per minute (cpm). Patients' baseline subjective activity and stage of change were assessed prior to measurements. Results. Mean daily activity in COPD patients was significantly lower compared to the healthy controls (864 ± 277 cpm versus 1162 ± 282 cpm, P < 0.001). COPD patients showed a temporary decrease in objective activities in the early afternoon. Objective and subjective activities were significantly moderately related and most patients (55.3%) were in the maintenance phase of the stages of change. Conclusions. COPD patients show a distinctive activity decrease in the early afternoon. COPD patients are moderately aware of their daily activity but regard themselves as physically active. Therefore, future telemedicine interventions might consider creating awareness of an active lifestyle and provide feedback that aims to increase and balance activity levels.
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