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Slipsager A, Andersen LK, Voermans NC, Lucia A, Karazi W, Santalla A, Vissing J, Løkken N. Fatigue and associated factors in 172 patients with McArdle disease: An international web-based survey. Neuromuscul Disord 2024; 34:19-26. [PMID: 38042739 DOI: 10.1016/j.nmd.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 12/04/2023]
Abstract
McArdle disease is an autosomal recessive inherited disease caused by pathogenic variants in the PYGM gene, resulting in virtual absence of the myophosphorylase enzyme in skeletal muscle. Patients experience physical activity intolerance, muscle pain, and muscle fatigue. This study aimed to investigate other fatigue domains with the Multidimensional Fatigue Inventory (MFI-20) along with an investigation of potential contributing factors, including relevant disease and lifestyle-related factors. We conducted a survey in an international cohort of patients with McArdle disease. The survey included questions on demographics and McArdle disease-related symptoms, and the questionnaires: MFI-20, Insomnia Severity Index (ISI), and International Physical Activity Questionnaire Short-Form (IPAQ-SF). One hundred seventy-four responses were included in the data analyses. We found relatively high fatigue scores in all five domains (general fatigue (12.9 ± 2.2), mental fatigue (10.1 ± 4.1), physical fatigue (13.7 ± 4.1), reduced activity (12.1 ± 4.1), and reduced motivation (10.4 ± 3.4)). Fatigue associated with McArdle symptom severity (p < 0.005), lower levels of physical activity (assessed by IPAQ-SF) (p < 0.05), and poor sleep (assessed by ISI) (p < 0.05). These findings call for clinical focus and future research into fatigue, sleep and mental health in patients with McArdle disease.
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Affiliation(s)
- Anna Slipsager
- Copenhagen Neuromuscular Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Linda Kahr Andersen
- Copenhagen Neuromuscular Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Nicol Cornelia Voermans
- The Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, The Netherlands
| | - Alejandro Lucia
- Physical Activity Health Research Group (PaHerg), Research Institute of Hospital 12 de Octubre ('i+12'). Madrid, Spain; Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Walaa Karazi
- The Department of Neurology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, The Netherlands
| | | | - John Vissing
- Copenhagen Neuromuscular Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Nicoline Løkken
- Copenhagen Neuromuscular Center, Department of Neurology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
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Batten K, Bhattacharya K, Simar D, Broderick C. Exercise testing and prescription in patients with inborn errors of muscle energy metabolism. J Inherit Metab Dis 2023; 46:763-777. [PMID: 37350033 DOI: 10.1002/jimd.12644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/02/2023] [Accepted: 06/21/2023] [Indexed: 06/24/2023]
Abstract
Skeletal muscle is a dynamic organ requiring tight regulation of energy metabolism in order to provide bursts of energy for effective function. Several inborn errors of muscle energy metabolism (IEMEM) affect skeletal muscle function and therefore the ability to initiate and sustain physical activity. Exercise testing can be valuable in supporting diagnosis, however its use remains limited due to the inconsistency in data to inform its application in IEMEM populations. While exercise testing is often used in adults with IEMEM, its use in children is far more limited. Once a physiological limitation has been identified and the aetiology defined, habitual exercise can assist with improving functional capacity, with reports supporting favourable adaptations in adult patients with IEMEM. Despite the potential benefits of structured exercise programs, data in paediatric populations remain limited. This review will focus on the utilisation and limitations of exercise testing and prescription for both adults and children, in the management of McArdle Disease, long chain fatty acid oxidation disorders, and primary mitochondrial myopathies.
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Affiliation(s)
- Kiera Batten
- School of Health Sciences, University of New South Wales, Sydney, Australia
- The Children's Hospital at Westmead, Sydney, Australia
| | - Kaustuv Bhattacharya
- The Children's Hospital at Westmead, Sydney, Australia
- School of Clinical Medicine, University of New South Wales, Sydney, Australia
| | - David Simar
- School of Health Sciences, University of New South Wales, Sydney, Australia
| | - Carolyn Broderick
- School of Health Sciences, University of New South Wales, Sydney, Australia
- The Children's Hospital at Westmead, Sydney, Australia
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The phenotypic and genotypic features of a Scottish cohort with McArdle disease. Neuromuscul Disord 2021; 31:695-700. [PMID: 34215481 DOI: 10.1016/j.nmd.2021.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/01/2021] [Accepted: 05/25/2021] [Indexed: 11/20/2022]
Abstract
This retrospective study evaluated the phenotypic and genotypic features of 14 patients with McArdle disease attending the West of Scotland adult muscle clinic. Although all patients experienced exercise-induced cramps, exercise intolerance and hyperCKaemia, only 71% (n = 10) experienced the second wind phenomenon, rhabdomyolysis and/or myoglobinuria. We observed a high rate of fixed muscle weakness (50%; n = 7), coronary artery disease (36%; n = 5), and psychological comorbidity (50%; n = 7). Although 79% had symptom onset in the first decade of life, the mean age at presentation and at genetic diagnosis was 43.8 years and 47.7 years, respectively. 93% had at least one copy of the common PYGM pathogenic variant, c.148C > T, p.(Arg50*), with 50% (n = 7) of the cohort being homozygous. Our cohort highlights the phenotypic variability seen in McArdle disease and underscores the potential for late-onset presentations. It emphasises the need for improved awareness and recognition of this condition amongst neurologists, rheumatologists and general physicians. A history of exercise intolerance and second wind phenomenon may not always be volunteered by the patient, underscoring the need to ask specific questions in clinic to extrapolate the relevant symptoms in this patient cohort.
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Pinós T, Andreu AL, Bruno C, Hadjigeorgiou GM, Haller RG, Laforêt P, Lucía A, Martín MA, Martinuzzi A, Navarro C, Oflazer P, Pouget J, Quinlivan R, Sacconi S, Scalco RS, Toscano A, Vissing J, Vorgerd M, Wakelin A, Martí R. Creation and implementation of a European registry for patients with McArdle disease and other muscle glycogenoses (EUROMAC registry). Orphanet J Rare Dis 2020; 15:187. [PMID: 33054807 PMCID: PMC7558742 DOI: 10.1186/s13023-020-01455-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND International patient registries are of particular importance for rare disorders, as they may contribute to overcome the lack of knowledge derived from low number of patients and limited awareness of these diseases, and help to learn more about their geographical or population-based specificities, which is relevant for research purposes and for promoting better standards of care and diagnosis. Our objective was to create and implement a European registry for patients with McArdle disease and other muscle glycogenoses (EUROMAC) and to disseminate the knowledge of these disorders. RESULTS Teams from nine different countries (United Kingdom, Spain, Italy, France, Germany, Denmark, Greece, Turkey and USA) created a consortium that developed the first European registry dedicated to rare muscle glycogenoses. A work plan was implemented to design the database and platform that constitute the registry, by choosing clinical, genetics and molecular variables of interest, based on experience gained from previous national registries for similar metabolic disorders. Among dissemination activities, several teaching events were organized in different countries, especially those where the consortium considered the awareness of these diseases needs to be promoted among health professionals and patients. CONCLUSION EUROMAC represents a step forward in the knowledge of those disorders to which it is dedicated, and will have relevant clinical outcomes at the diagnostic, epidemiological, clinical and research level.
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Affiliation(s)
- Tomàs Pinós
- Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, and Research Group on Neuromuscular and Mitochondrial Diseases, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Pg. Vall d'Hebron 119, 08035, Barcelona, Catalonia, Spain
| | - Antoni L Andreu
- Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, and Research Group on Neuromuscular and Mitochondrial Diseases, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Pg. Vall d'Hebron 119, 08035, Barcelona, Catalonia, Spain
| | - Claudio Bruno
- Center of Translational and Experimental Myology, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Ronald G Haller
- Neuromuscular Center, Institute for Exercise and Environmental Medicine of Texas Health Presbyterian Hospital, Dallas, TX, USA
| | - Pascal Laforêt
- Nord/Est/Ile de France Neuromuscular Reference Center, Neurology Department, Raymond-Poincaré Teaching Hospital, AP-HP, Garches, France
- INSERM U1179, END-ICAP, Paris Saclay University, Paris, France
| | - Alejandro Lucía
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
- Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, and 12 de Octubre University Hospital Research Institute, ('imas12'), Madrid, Spain
| | - Miguel A Martín
- Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, and 12 de Octubre University Hospital Research Institute, ('imas12'), Madrid, Spain
| | - Andrea Martinuzzi
- Department of Conegliano-Pieve di Soligo, IRCCS Eugenio Medea-Associazione "La Nostra Famiglia" Scientific Institute, Bosisio Parini, Italy
| | | | - Piraye Oflazer
- Department of Neurology, Neuromuscular Unit, Istanbul University, Istanbul, Turkey
| | - Jean Pouget
- Centre de Référence Maladies Neuromusculaires, Assistance Publique-Hopitaux de Marseille, Marseille, France
| | - Ros Quinlivan
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, National Hospital, London, UK
| | | | - Renata S Scalco
- MRC Centre for Neuromuscular Diseases, UCL Institute of Neurology, National Hospital, London, UK
| | - Antonio Toscano
- Neurology and Neuromuscular Diseases Unit, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - John Vissing
- Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Matthias Vorgerd
- Heimer Institute for Muscle Research, University Hospital Bergmannsheil Bochum, Bochum, Germany
| | | | - Ramon Martí
- Biomedical Network Research Centre on Rare Diseases (CIBERER), Instituto de Salud Carlos III, and Research Group on Neuromuscular and Mitochondrial Diseases, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Pg. Vall d'Hebron 119, 08035, Barcelona, Catalonia, Spain.
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Rodríguez-Gómez I, Santalla A, Diez-Bermejo J, Munguía-Izquierdo D, Alegre LM, Nogales-Gadea G, Arenas J, Martín MA, Lucia A, Ara I. Sex Differences and the Influence of an Active Lifestyle on Adiposity in Patients with McArdle Disease. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17124334. [PMID: 32560448 PMCID: PMC7344565 DOI: 10.3390/ijerph17124334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/11/2020] [Accepted: 06/13/2020] [Indexed: 11/30/2022]
Abstract
McArdle disease (glycogenosis-V) is associated with exercise intolerance, however, how it affects an important marker of cardiometabolic health as it is adiposity remains unknown. We evaluated the association between physical activity (PA) and adiposity in patients with McArdle disease. We assessed 199 adults of both sexes (51 McArdle patients (36 ± 11 years) and 148 healthy controls (35 ± 10 years)). Body fat (BF) was determined using dual-energy X-ray absorptiometry (DXA) method and each patient’s PA was assessed with the International PA Questionnaire (IPAQ). Although body mass index values did not differ between patients and controls, McArdle patients had significantly higher values of BF in all body regions (p < 0.05) and higher risk of suffering obesity (odds ratio (OR): 2.54, 95% confidence interval (95% CI): 1.32–4.88). Male patients had higher BF and obesity risk (OR: 3.69, 95% CI: 1.46−9.34) than their sex-matched controls, but no differences were found within the female sex (p < 0.05). In turn, active female patients had lower trunk BF than their inactive peers (p < 0.05). Males with McArdle seem to have adiposity problems and a higher risk of developing obesity than people without the condition, while female patients show similar or even better levels in the trunk region with an active lifestyle. Therefore, special attention should be given to decrease adiposity and reduce obesity risk in males with McArdle disease.
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Affiliation(s)
- Irene Rodríguez-Gómez
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; (I.R.-G.); (L.M.A.)
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
| | - Alfredo Santalla
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
- Department of Sport and Computer Science, Section of Physical Education and Sports, Faculty of Sport, Universidad Pablo de Olavide, 41013 Sevilla, Spain
| | - Jorge Diez-Bermejo
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain; (J.D.-B.); (J.A.); (M.A.M.)
| | - Diego Munguía-Izquierdo
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
- Department of Sport and Computer Science, Section of Physical Education and Sports, Faculty of Sport, Universidad Pablo de Olavide, 41013 Sevilla, Spain
| | - Luis M. Alegre
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; (I.R.-G.); (L.M.A.)
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
| | - Gisela Nogales-Gadea
- Department of Neurosciences, Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol I Campus Can Ruti, Universitat Autònoma de Barcelona, 08041 Badalona, Spain;
- CIBER of Rare Disorders (CIBERER), 28029 Madrid, Spain
| | - Joaquín Arenas
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain; (J.D.-B.); (J.A.); (M.A.M.)
- CIBER of Rare Disorders (CIBERER), 28029 Madrid, Spain
| | - Miguel A. Martín
- Research Institute Hospital 12 de Octubre, 28041 Madrid, Spain; (J.D.-B.); (J.A.); (M.A.M.)
- CIBER of Rare Disorders (CIBERER), 28029 Madrid, Spain
| | - Alejandro Lucia
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
- School of Research and Doctorate Studies, Universidad Europea de Madrid, 28670 Madrid, Spain
| | - Ignacio Ara
- GENUD Toledo Research Group, Universidad de Castilla-La Mancha, 45071 Toledo, Spain; (I.R.-G.); (L.M.A.)
- CIBER of Frailty and Healthy Aging (CIBERFES), 28029 Madrid, Spain; (A.S.); (D.M.-I.); (A.L.)
- Correspondence: ; Tel.: +34-925-268-800 (ext. 5543)
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GRASSI BRUNO, PORCELLI SIMONE, MARZORATI MAURO. Translational Medicine: Exercise Physiology Applied to Metabolic Myopathies. Med Sci Sports Exerc 2019; 51:2183-2192. [DOI: 10.1249/mss.0000000000002056] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Jimenez-Moreno AC, Newman J, Charman SJ, Catt M, Trenell MI, Gorman GS, Hogrel JY, Lochmüller H. Measuring Habitual Physical Activity in Neuromuscular Disorders: A Systematic Review. J Neuromuscul Dis 2017; 4:25-52. [PMID: 28269791 PMCID: PMC5345641 DOI: 10.3233/jnd-160195] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Free-living or habitual physical activity (HPA) refers to someone's performance in his or her free-living environment. Neuromuscular disorders (NMD) manifest through HPA, and the observation of HPA can be used to identify clinical risks and to quantify outcomes in research. This review summarizes and analyses previous studies reporting the assessment of HPA in NMD, and may serve as the basis for evidence-based decision-making when considering assessing HPA in this population. METHODS A systematic review was performed to identify all studies related to HPA in NMD, followed by a critical appraisal of the assessment methodology and a final review of the identified HPA tools. RESULTS A total of 22 studies were selected, reporting on eight different direct tools (or activity monitors) and ten structured patient-reported outcomes. Overall, HPA patterns in NMD differ from healthy control populations. There was a noticeable lack of validation studies for these tools and outcome measures in NMD. Very little information regarding feasibility and barriers for the application of these tools in this population have been published. CONCLUSIONS The variety and heterogeneity of tools and methods in the published literature makes the comparison across different studies difficult, and methodological guidelines are warranted. We propose a checklist of considerations for the assessment and reporting of HPA in NMD.
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Affiliation(s)
- Aura Cecilia Jimenez-Moreno
- John Walton Muscular Dystrophy Research Centre, MRC centre for Neuromuscular Disease, Institute of Genetic Medicine, Newcastle University, UK
| | - Jane Newman
- Movelab, Institute of Cellular Medicine, Newcastle University, UK
| | - Sarah J. Charman
- Movelab, Institute of Cellular Medicine, Newcastle University, UK
| | - Michael Catt
- Institute of Neuroscience, Newcastle University, UK
| | | | | | - Jean-Yves Hogrel
- Neuromuscular Physiology and Evaluation Lab, Institute of Myology, Paris, France
| | - Hanns Lochmüller
- John Walton Muscular Dystrophy Research Centre, MRC centre for Neuromuscular Disease, Institute of Genetic Medicine, Newcastle University, UK
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9
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Vissing J. Exercise training in metabolic myopathies. Rev Neurol (Paris) 2016; 172:559-565. [DOI: 10.1016/j.neurol.2016.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 08/22/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
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Porcelli S, Marzorati M, Morandi L, Grassi B. Home-based aerobic exercise training improves skeletal muscle oxidative metabolism in patients with metabolic myopathies. J Appl Physiol (1985) 2016; 121:699-708. [PMID: 27445303 DOI: 10.1152/japplphysiol.00885.2015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 07/15/2016] [Indexed: 11/22/2022] Open
Abstract
Aerobic training can be effective in patients with mitochondrial myopathies (MM) and McArdle's disease (McA). The aim of the study was to use noninvasive functional evaluation methods, specifically aimed at skeletal muscle oxidative metabolism, to evaluate the effects of an aerobic exercise training (cycle ergometer, 12 wk, 4 days/wk, ∼65-70% of maximal heart rate) in 6 MM and 7 McA. Oxygen uptake and skeletal muscle vastus lateralis fractional O2 extraction by near-infrared spectroscopy were assessed during incremental and low-intensity constant work rate (CWR) exercises before (BEFORE) and at the end (AFTER) of training. Peak O2 uptake increased significantly with training both in MM [14.7 ± 1.2 vs. 17.6 ± 1.4 ml·kg(-1)·min(-1) (mean ± SD)] and in McA (18.5 ± 1.8 ml·kg(-1)·min(-1) vs. 21.6 ± 1.9). Peak skeletal muscle fractional O2 extraction increased with training both in MM (22.0 ± 6.7 vs. 32.6 ± 5.9%) and in McA (18.5 ± 6.2 vs. 37.2 ± 7.2%). During low-intensity CWR in both MM and McA: V̇o2 kinetics became faster in AFTER, but only in the patients with slow V̇o2 kinetics in BEFORE; the transient overshoot in fractional O2 extraction kinetics disappeared. The level of habitual physical activity was not higher 3 mo after training (FOLLOW-UP vs. PRE). In MM and McA patients a home-based aerobic training program significantly attenuated the impairment of skeletal muscle oxidative metabolism and improved variables associated with exercise tolerance. Our findings indicate that in MM and McA patients near-infrared spectroscopy and V̇o2 kinetics can effectively detect the functional improvements obtained by training.
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Affiliation(s)
- Simone Porcelli
- Institute of Molecular Bioimaging and Physiology, National Research Council, Segrate, Italy; Department of Medical and Biological Sciences, University of Udine, Udine, Italy
| | - Mauro Marzorati
- Institute of Molecular Bioimaging and Physiology, National Research Council, Segrate, Italy
| | - Lucia Morandi
- IRCCS Istituto Neurologico "Carlo Besta" Foundation, Milan, Italy; and
| | - Bruno Grassi
- Institute of Molecular Bioimaging and Physiology, National Research Council, Segrate, Italy; Department of Medical and Biological Sciences, University of Udine, Udine, Italy
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NOGALES-GADEA GISELA, SANTALLA ALFREDO, BALLESTER-LOPEZ ALFONSINA, ARENAS JOAQUÍN, MARTÍN MIGUELANGEL, GODFREY RICHARD, PINÍS TOMÀS, PINTOS-MORELL GUILLEM, COLL-CANTÍ JAUME, LUCIA ALEJANDRO. Exercise and Preexercise Nutrition as Treatment for McArdle Disease. Med Sci Sports Exerc 2016; 48:673-9. [DOI: 10.1249/mss.0000000000000812] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Quinlivan R, Lucia A, Scalco RS, Santalla A, Pattni J, Godfrey R, Marti R. Report on the EUROMAC McArdle Exercise Testing Workshop, Madrid, Spain, 11–12 July 2014. Neuromuscul Disord 2015; 25:739-45. [DOI: 10.1016/j.nmd.2015.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 05/22/2015] [Indexed: 10/23/2022]
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Diez Morrondo C, Pantoja Zarza L, San Millán Tejado B. McArdle disease: 2 case reports. ACTA ACUST UNITED AC 2015; 12:161-3. [PMID: 26235145 DOI: 10.1016/j.reuma.2015.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 06/25/2015] [Accepted: 06/26/2015] [Indexed: 10/23/2022]
Abstract
A high serum level of creatine kinase (CK) is a common reason for referring to medical specialities. Myopathies are one of the causes of elevated levels of CK. McArdle disease is the most common disorder of skeletal muscle carbohydrate metabolism. The cases are presented on 2 patients who were referred to our medical consultation to study the cause of their increased CK levels: a 72 year old asymptomatic man with high levels of CK detected by chance in a routine analysis, and a 30 year old woman with very few symptoms, apart from slight muscle pain and tiredness. Electromyography was normal in both patients. There was null activity of myophosphorylase in muscle biopsy of both cases, so a diagnosis of McArdle disease was made.
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Preisler N, Haller RG, Vissing J. Exercise in muscle glycogen storage diseases. J Inherit Metab Dis 2015; 38:551-63. [PMID: 25326273 DOI: 10.1007/s10545-014-9771-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 09/09/2014] [Indexed: 12/11/2022]
Abstract
Glycogen storage diseases (GSD) are inborn errors of glycogen or glucose metabolism. In the GSDs that affect muscle, the consequence of a block in skeletal muscle glycogen breakdown or glucose use, is an impairment of muscular performance and exercise intolerance, owing to 1) an increase in glycogen storage that disrupts contractile function and/or 2) a reduced substrate turnover below the block, which inhibits skeletal muscle ATP production. Immobility is associated with metabolic alterations in muscle leading to an increased dependence on glycogen use and a reduced capacity for fatty acid oxidation. Such changes may be detrimental for persons with GSD from a metabolic perspective. However, exercise may alter skeletal muscle substrate metabolism in ways that are beneficial for patients with GSD, such as improving exercise tolerance and increasing fatty acid oxidation. In addition, a regular exercise program has the potential to improve general health and fitness and improve quality of life, if executed properly. In this review, we describe skeletal muscle substrate use during exercise in GSDs, and how blocks in metabolic pathways affect exercise tolerance in GSDs. We review the studies that have examined the effect of regular exercise training in different types of GSD. Finally, we consider how oral substrate supplementation can improve exercise tolerance and we discuss the precautions that apply to persons with GSD that engage in exercise.
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Affiliation(s)
- Nicolai Preisler
- Neuromuscular Research Unit, Section 3342, Department of Neurology, Rigshospitalet, University of Copenhagen, Blegdamsvej 9, 2100, Copenhagen, Denmark,
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Abstract
In this review, we present an overview of the role of exercise in neuromuscular disease (NMD). We demonstrate that despite the different pathologies in NMDs, exercise is beneficial, whether aerobic/endurance or strength/resistive training, and we explore whether this benefit has a similar mechanism to that of healthy subjects. We discuss further areas for study, incorporating imaginative and novel approaches to training and its assessment in NMD. We conclude by suggesting ways to improve future trials by avoiding previous methodological flaws and drawbacks in this field.
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Affiliation(s)
- Yaacov Anziska
- Department of Neurology, SUNY-Downstate Medical Center, 450 Clarkson Avenue, Box 1213, Brooklyn, New York, 11203, USA.
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Abresch RT, Carter GT, Han JJ, McDonald CM. Exercise in neuromuscular diseases. Phys Med Rehabil Clin N Am 2013; 23:653-73. [PMID: 22938880 DOI: 10.1016/j.pmr.2012.06.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This article reviews the current knowledge regarding the benefits and contraindications of exercise on individuals with neuromuscular diseases (NMDs). Specific exercise prescriptions for individuals with NMDs do not exist because the evidence base is limited. Understanding the effect of exercise on individuals with NMDs requires the implementation of a series of multicenter, randomized controlled trials that are sufficiently powered and use reliable and valid outcome measures to assess the effect of exercise interventions-a major effort for each NMD. In addition to traditional measures of exercise efficacy, outcome variables should include measures of functional status and health-related quality of life.
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Affiliation(s)
- R Ted Abresch
- Department of Rehabilitation Medicine, University of California, Davis, 4860 Y Street Suite, 3850, Sacramento, CA 95817, USA.
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Maladies musculaires en réanimation. Quand les évoquer ? Comment orienter la recherche diagnostique ? MEDECINE INTENSIVE REANIMATION 2012. [DOI: 10.1007/s13546-012-0515-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
BACKGROUND McArdle disease is a rare metabolic myopathy caused by a complete absence of the enzyme muscle glycogen phosphorylase. Affected people experience symptoms of fatigue and cramping within minutes of exercise and are at risk for acute muscle injury (rhabdomyolysis) and acute renal failure. If the first few minutes of exercise are paced, a 'second wind' will occur enabling exercise to continue. This is due to mobilisation and utilisation of alternative fuel substrates. Aerobic training appears to improve work capacity by increasing cardiovascular fitness. OBJECTIVES To assess the effects of aerobic training in people with McArdle disease. SEARCH METHODS We searched the Cochrane Neuromuscular Disease Group Specialized Register (11 January 2011), CENTRAL (2010, Issue 4), MEDLINE (January 1966 to January 2011) and EMBASE (January 1980 to January 2011). SELECTION CRITERIA All randomised and quasi-randomised controlled studies of aerobic exercise training in people of all ages with McArdle disease. DATA COLLECTION AND ANALYSIS Two authors identified possible studies for inclusion and assessed their methodological quality. Had more than one study of sufficient methodological quality been identified we would have undertaken a meta-analysis. MAIN RESULTS There were no randomised or quasi-randomised controlled trials of aerobic training in people with McArdle disease. However, three open studies using small numbers of participants provided some evidence that aerobic training improves fitness without adverse events in people with McArdle disease. AUTHORS' CONCLUSIONS Evidence from non-randomised studies using small numbers of patients suggest that it would be safe and worthwhile for larger controlled trials of aerobic training to be undertaken in people with McArdle disease.
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Affiliation(s)
- Rosaline Quinlivan
- MRC Centre for Neuromuscular Diseases and Dubowitz Neuromuscular Centre, UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery and Great Ormond Street, PO Box 114, London, UK, WC1B 3BN
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Amezyane T, El Kharras A, Abouzahir A, Fatihi J, Bassou D, Mahassin F, Ghafir D, Ohayon V. [McArdle disease revealed by exercise intolerance associated with severe rhabdomyolysis]. ANNALES D'ENDOCRINOLOGIE 2009; 70:480-4. [PMID: 19878922 DOI: 10.1016/j.ando.2009.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Revised: 08/21/2009] [Accepted: 08/28/2009] [Indexed: 10/20/2022]
Abstract
McArdle's disease (MAD) is a rare hereditary myopathy secondary to a deficit in myophosphorylase, an essential enzyme for the use of muscular glycogen reserves. Exercise intolerance to a variable degree is the fundamental manifestation. Muscular enzymes are usually normal or slightly elevated, except during episodes of rhabdomyolysis. Generally, the electromyogram has poor sensitivity for the diagnosis of exercise myopathies. The muscular biopsy can be misleadingly normal. The role of MRI in the diagnosis of MAD is not well clarified in the literature. We report the case of a 16-year-old patient, hospitalized in July 2008 for exercise intolerance. On admission, he was asymptomatic and the physical examination was non contributive. Serum creatine kinase levels and renal function measures were normal. Cycloergometer exercise testing unmasked the disease. EMG and muscular biopsies were normal. During the second hospitalization, this time for rhabdomyolysis, T2 weighted MRI of the thighs showed high intensity signals from the gracilis muscles. The control MRI, made after 2 weeks of rest, was normal. Right gracilis muscle biopsy demonstrated excess glycogen with myophosphorylase deficiency, establishing the diagnosis of MAD. MAD is a rare metabolic myopathy to consider in patients with a history of exercise intolerance. The muscle biopsy can be misleadingly normal and should be, to our opinion, be guided by MRI findings.
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Affiliation(s)
- T Amezyane
- Service de médecine interne, hôpital militaire d'instruction Mohammed V, 10000 Hay Ryad, Rabat, Maroc.
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Abresch RT, Han JJ, Carter GT. Rehabilitation management of neuromuscular disease: the role of exercise training. J Clin Neuromuscul Dis 2009; 11:7-21. [PMID: 19730017 DOI: 10.1097/cnd.0b013e3181a8d36b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper summarizes the current state of knowledge regarding exercise and neuromuscular diseases/disorders (NMDs) and reviews salient studies in the literature. Unfortunately, there is inadequate evidence in much of the NMDs to make specific recommendations regarding exercise prescriptions. This review focuses on the role of exercise in a few of the specific NMDs where most research has taken place and recommends future research directions.
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Affiliation(s)
- R Ted Abresch
- Department of Physical Medicine and Rehabilitation, University of California, Davis, Davis, CA, USA
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21
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Abstract
Metabolic myopathies are inborn errors of metabolism that result in impaired energy production due to defects in glycogen, lipid, mitochondrial, and possibly adenine nucleotide metabolism. Fatty acid oxidation defects (FAOD), glycogen storage disease, and mitochondrial myopathies represent the 3 main groups of disorders, and some consider myoadenylate deaminase (AMPD1 deficiency) to be a metabolic myopathy. Clinically, a variety of neuromuscular presentations are seen at different ages of life. Newborns and infants commonly present with hypotonia and multisystem involvement (liver and brain), whereas onset later in life usually presents with exercise intolerance with or without progressive muscle weakness and myoglobinuria. In general, the glycogen storage diseases result in high-intensity exercise intolerance, whereas the FAODs and the mitochondrial myopathies manifest predominately during endurance-type activity or under fasted or other metabolically stressful conditions. The clinical examination is often normal, and testing requires various combinations of exercise stress testing, serum creatine kinase activity and lactate concentration determination, urine organic acids, muscle biopsy, neuroimaging, and specific genetic testing for the diagnosis of a specific metabolic myopathy. Prenatal screening is available in many countries for several of the FAODs through liquid chromatography-tandem mass spectrometry. Early identification of these conditions with lifestyle measures, nutritional intervention, and cofactor treatment is important to prevent or delay the onset of muscle weakness and to avoid potential life-threatening complications such as rhabdomyolysis with resultant renal failure or hepatic failure. This article will review the key clinical features, diagnostic tests, and treatment recommendations for the more common metabolic myopathies, with an emphasis on mitochondrial myopathies.
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Devries MC, Tarnopolsky MA. Muscle Physiology in Healthy Men and Women and Those with Metabolic Myopathies. Phys Med Rehabil Clin N Am 2009; 20:101-31, viii-ix. [DOI: 10.1016/j.pmr.2008.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Muscle Physiology in Healthy Men and Women and Those with Metabolic Myopathies. Neurol Clin 2008; 26:115-48; ix. [DOI: 10.1016/j.ncl.2007.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Quinlivan R, Vissing J. 144th ENMC International Workshop: Outcome Measures in McArdle Disease, 29 September–1 November 2006, Naarden, The Netherlands. Neuromuscul Disord 2007; 17:494-8. [PMID: 17490880 DOI: 10.1016/j.nmd.2007.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2007] [Indexed: 10/23/2022]
Affiliation(s)
- R Quinlivan
- The Centre for Inherited Neuromuscular Disease, Robert Jones and Agnes Hunt NHS Trust, Gobowen, Oswestry, UK.
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Abstract
In 1951, McArdle described a glycogen storage disorder which presents primarily as a myopathy. It is characterized by muscle pain, weakness and exercise intolerance with elevated creatine kinase from rhabdomyolysis. The pathophysiology involves a deficiency of myophosphorylase enzyme resulting in an inability to degrade glycogen stores. We present a novel case of McArdle disease (glycogen storage disease V [GSDV]) in a patient who had sickle cell trait and bulimia. The disease went unrecognized despite several admissions to the hospital with increased creatine kinase and muscle myopathy until the patient's initial presentation with acute renal failure.
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Rommel O, Kley RA, Dekomien G, Epplen JT, Vorgerd M, Hasenbring M. Muscle pain in myophosphorylase deficiency (McArdle’s disease): The role of gender, genotype, and pain-related coping. Pain 2006; 124:295-304. [PMID: 16793208 DOI: 10.1016/j.pain.2006.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2005] [Revised: 04/03/2006] [Accepted: 04/17/2006] [Indexed: 11/28/2022]
Abstract
Pain characteristics were examined in 24 patients with myophosphorylase deficiency (McArdle's disease). Pain parameters were related to mutation analyses as well as psychosocial data using a pain questionnaire including an assessment of psychosocial distress and coping measures (Beck Depression Inventory BDI; Kiel Pain Inventory KPI, Multidimensional Fatique Inventory MFI). Twenty-three patients complained of pain, which was intermittent and exercise-induced in 15 patients. Eight patients complained of permanent pain, which was superimposed by exercise-induced pain in 7 patients. Patients reported 3-7 different pain characters and various localisations. Patients with permanent pain were significantly more frequently female, experienced higher impact on general activities and sleep as well as higher scores on the MFI. Furthermore, these patients revealed higher scores regarding several psychosocial risk factors including avoidance behavior whereas patients with intermittent pain predominantly showed endurance coping. There was no correlation between age or disease duration, pain intensity as well as mutation type and development of permanent or intermittent pain. In addition, severity of the clinical phenotype did not correlate with ACE polymorphism. Although McArdle's disease is a muscle glycogenosis with marked biochemical homogeneity, the clinical presentation can be quite heterogeneous. A substantial number of patients revealed permanent pain as a major clinical symptom. As permanent pain is not related to age or disease duration, it might be a clinically important subgroup of McArdle's disease. Gender-related genetic factors as well as maladaptive pain-related coping may contribute to the development of such a chronic pain symptom.
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Affiliation(s)
- Oliver Rommel
- Department of Neurology, Neuromuscular Center Ruhrgebiet, Kliniken Bergmannsheil, Ruhr-University, Bochum, Germany Department of Human Genetics, Ruhr-University, Bochum, Germany Department of Medical Psychology and Medical Sociology, Ruhr-University, Bochum, Germany Department of Neurology and Pain Therapy, Rommel-Klinik GMBH, Bad Wildbad, Germany
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Haller RG, Wyrick P, Taivassalo T, Vissing J. Aerobic conditioning: An effective therapy in McArdle's disease. Ann Neurol 2006; 59:922-8. [PMID: 16718692 DOI: 10.1002/ana.20881] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Susceptibility to exertional cramps and rhabdomyolysis in myophosphorylase deficiency (McArdle's disease [MD]) may lead patients to shun exercise. However, physical inactivity may worsen exercise intolerance by further reducing the limited oxidative capacity caused by blocked glycogenolysis. We investigated whether aerobic conditioning can safely improve exercise capacity in MD. METHODS Eight MD patients (4 men and 4 women; age range, 33-61 years) pedalled a cycle ergometer for 30 to 40 minutes a day, 4 days a week, for 14 weeks, at an intensity corresponding to 60 to 70% of maximal heart rate. We monitored serum creatine kinase levels; changes in peak cycle work, oxygen uptake, and cardiac output; presence and magnitude of a spontaneous and glucose-induced second wind; and citrate synthase and beta-hydroxyacyl coenzyme A dehydrogenase enzyme activities in quadriceps muscle. RESULTS The prescribed exercise program increased average work capacity (36%), oxygen uptake (14%), cardiac output (15%), and citrate synthase and beta-hydroxyacyl coenzyme A dehydrogenase enzyme levels (80 and 62%, respectively) without causing pain or cramping or increasing serum creatine kinase. A spontaneous and glucose-induced second wind was present and was of similar magnitude in each patient before and after training. INTERPRETATION Moderate aerobic exercise is an effective means of improving exercise capacity in MD by increasing circulatory delivery and mitochondrial metabolism of bloodborne fuels.
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Affiliation(s)
- Ronald G Haller
- Neuromuscular Center, Institute for Exercise and Environmental Medicine of Presbyterian Hospital, Dallas, TX 75231, USA.
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