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Antonsson M, Johansson K, Bonde Dalemo A, Ivehorn Axelsson C, Burge Å, Lesueur U, Hartelius L. Effect of expiratory muscle strength training on voice and speech: An exploratory study in persons with Parkinson's disease or multiple sclerosis. INTERNATIONAL JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2024; 26:475-492. [PMID: 37787640 DOI: 10.1080/17549507.2023.2243402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE This study explored how respiration, voice, and speech were affected following expiratory muscle strength training (EMST) and maintenance training in persons with Parkinson's disease (PD) or multiple sclerosis (MS). METHOD Nine participants with PD and six with MS participated in a randomised study, where the effects of EMST, sham, and maintenance treatment were investigated. Outcome measures included maximum expiratory pressure (MEP); maximum phonation time (MPT); intelligibility; verbal diadochokinesis (DDK); speech rate; a self-report form on voice, speech, and communication; and open questions about how the participants experienced the intervention. Group comparisons were performed within and between groups. RESULT The PD and the MS groups both improved significantly in MEP, and this improvement remained after 3 months of maintenance EMST. An improvement was also seen in DDK. Post-EMST, 33% of the PD group and 80% of the MS group reported a positive effect on communication. CONCLUSION The results of this study support previous evidence that EMST has positive effects on expiratory pressure in persons with PD or MS, but its effect on voice and speech remains unclear. Since subjective reports of the intervention and effects on communication were predominantly positive, further research is needed on larger groups to explore appropriate outcome measures.
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Affiliation(s)
- Malin Antonsson
- Speech and Language Pathology Unit, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Kerstin Johansson
- Division of Speech Language Pathology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Anna Bonde Dalemo
- Speech and Language Pathology Unit, Skaraborg Hospital, Gothenburg, Region Västra Götaland, Sweden
| | | | - Åsa Burge
- Department of Neurology, Angered Hospital, Region Västra Götaland, Sweden
| | - Ulrike Lesueur
- Department of Neurology, Angered Hospital, Region Västra Götaland, Sweden
| | - Lena Hartelius
- Speech and Language Pathology Unit, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
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Razi O, Teixeira AM, Tartibian B, Zamani N, Knechtle B. Respiratory issues in patients with multiple sclerosis as a risk factor during SARS-CoV-2 infection: a potential role for exercise. Mol Cell Biochem 2023; 478:1533-1559. [PMID: 36411399 PMCID: PMC9684932 DOI: 10.1007/s11010-022-04610-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 11/04/2022] [Indexed: 11/23/2022]
Abstract
Coronavirus disease-2019 (COVID-19) is associated with cytokine storm and is characterized by acute respiratory distress syndrome (ARDS) and pneumonia problems. The respiratory system is a place of inappropriate activation of the immune system in people with multiple sclerosis (MS), and this may cause damage to the lung and worsen both MS and infections.The concerns for patients with multiple sclerosis are because of an enhance risk of infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The MS patients pose challenges in this pandemic situation, because of the regulatory defect of autoreactivity of the immune system and neurological and respiratory tract symptoms. In this review, we first indicate respiratory issues associated with both diseases. Then, the main mechanisms inducing lung damages and also impairing the respiratory muscles in individuals with both diseases is discussed. At the end, the leading role of physical exercise on mitigating respiratory issues inducing mechanisms is meticulously evaluated.
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Affiliation(s)
- Omid Razi
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Razi University, Kermanshah, Iran
| | - Ana Maria Teixeira
- Research Center for Sport and Physical Activity, Faculty of Sport Sciences and Physical Education, University of Coimbra, Coimbra, Portugal
| | - Bakhtyar Tartibian
- Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Allameh Tabataba’i University, Tehran, Iran
| | - Nastaran Zamani
- Department of Biology, Faculty of Science, Payame-Noor University, Tehran, Iran
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, Zurich, Switzerland
- Medbase St. Gallen Am Vadianplatz, Vadianstrasse 26, 9001 St. Gallen, Switzerland
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Kaufman MR, Ferro N, Paulin E. Phrenic nerve paralysis and phrenic nerve reconstruction surgery. HANDBOOK OF CLINICAL NEUROLOGY 2022; 189:271-292. [PMID: 36031309 DOI: 10.1016/b978-0-323-91532-8.00003-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Phrenic nerve injury results in paralysis of the diaphragm muscle, the primary generator of an inspiratory effort, as well as a stabilizing muscle involved in postural control and spinal alignment. Unilateral deficits often result in exertional dyspnea, orthopnea, and sleep-disordered breathing, whereas oxygen or ventilator dependency can occur with bilateral paralysis. Common etiologies of phrenic injuries include cervical trauma, iatrogenic injury in the neck or chest, and neuralgic amyotrophy. Many patients have no identifiable etiology and are considered to have idiopathic paralysis. Diagnostic evaluation requires radiographic and pulmonary function testing, as well as electrodiagnostic assessment to quantitate the nerve deficit and determine the extent of denervation atrophy. Treatment for symptomatic diaphragm paralysis has traditionally been limited. Medical therapies and nocturnal positive airway pressure may provide some benefit. Surgical repair of the nerve injury to restore functional diaphragmatic activity, termed phrenic nerve reconstruction, is a safe and effective alternative to static repositioning of the diaphragm (diaphragm plication), in properly selected patients. Phrenic nerve reconstruction has increasingly become a standard surgical treatment for diaphragm paralysis due to phrenic nerve injury. A multidisciplinary approach at specialty referral centers combining diagnostic evaluation, surgical treatment, and rehabilitation is required to achieve optimal long-term outcomes.
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Affiliation(s)
- Matthew R Kaufman
- Institute for Advanced Reconstruction, Shrewsbury, NJ, United States; Division of Plastic and Reconstructive Surgery, UCLA Medical Center, Los Angeles, CA, United States.
| | - Nicole Ferro
- Institute for Advanced Reconstruction, Shrewsbury, NJ, United States
| | - Ethan Paulin
- Institute for Advanced Reconstruction, Shrewsbury, NJ, United States
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Pulmonary Function and Respiratory Muscle Strength in Patients with Multiple Sclerosis. Mult Scler Int 2021; 2021:5532776. [PMID: 34221507 PMCID: PMC8219426 DOI: 10.1155/2021/5532776] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/27/2021] [Accepted: 06/10/2021] [Indexed: 11/30/2022] Open
Abstract
Background In patients with multiple sclerosis (MS), there is a decline in muscle strength and physical capacity due to demyelination and axonal loss in the central nervous system. In patients with advanced MS or in a later stage of the disease, also respiratory impairment may occur. The degree of pulmonary dysfunction in the earlier stages of MS has not been thoroughly described. Therefore, the primary aims of this study are to describe pulmonary function and respiratory muscle strength in patients with a moderate disease course and to identify associations between respiratory muscle strength and functional capacity. Methods A sample of 48 patients with a diagnosis of MS and mean age 56 ± 11 years was studied using a descriptive cross-sectional design. The patients had a disease duration of 24 ± 11 years and a median Expanded Disability Status Scale (EDSS) score of 4.5 (interquartile range 4.0-6.5). Pulmonary function assessed by spirometry, respiratory muscle strength, peak cough flow and peripheral oxygen saturation, subjective breathing and coughing ability, and physical capacity measured using the 6MWT were evaluated. Results The patients had normal pulmonary function with no significant abnormalities in dynamic spirometry (vital capacity 103 ± 16% predicted, forced expiratory volume in 1 second 95 ± 15% predicted). Peak expiratory flow rate 89 ± 17% predicted was in the lower limit of normal. Respiratory muscle strength, determined by maximal inspiratory (MIP) and expiratory (MEP) static pressures, was normal but with large differences between individuals. MIP ranged from 26 to 143 cmH2O (98 ± 31% predicted); the MEP values ranged from 43 to 166 cmH2O (104 ± 29% predicted), with two patients having values below the lower limit of normal. Significant positive associations between MIP as well as MEP were found in several pulmonary function variables. A significant negative association was found between EDSS score and MEP (r = −0.312, p = 0.031). Mean peak cough flow was 389 ± 70 L/min, which is comparable with the values reported for healthy adults. The patients did not experience a severely decreased ability to take deep breaths or cough. There was a moderate correlation between MEP and physical capacity, as assessed by the 6MWT (r = 0.399, p = 0.010) and between peak expiratory flow (PEF) and the 6MWT (r = 0.311, p = 0.048). Conclusion Respiratory muscle strength, pulmonary function assessed by spirometry, and peak cough flow were normal in patients with mild to moderate MS; however, there were large individual differences demonstrating low respiratory muscle strength in some patients. Significant associations between MEP and functional capacity and between MEP and disease severity were found, indicating that patients with impaired respiratory muscle strength have lower functional capacity and more severe disease.
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Ge F, Huo Z, Li C, Wang R, Wang R, Liu Y, Chen J, Lu Y, Wen Y, Jiang Y, Peng H, Wu X, Liang H, He J, Liang W. Lung cancer risk in patients with multiple sclerosis: a Mendelian randomization analysis. Mult Scler Relat Disord 2021; 51:102927. [PMID: 33812221 DOI: 10.1016/j.msard.2021.102927] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND The relationship of multiple sclerosis (MS) with lung cancer is under debate. Conventional observational studies have reported conflicting findings, but such studies are susceptible to confounding and reverse causation. With a Mendelian Randomization approach, we were able to evaluate the causality between MS and lung cancer. METHODS According to published genome-wide association studies (GWASs), we obtained 35 MS-related single-nucleotide polymorphisms, which were used as instrumental variables in our study. Summary data of individual-level genetic information were obtained from the International Lung Cancer Consortium (ILCCO), with a total of 15,861 controls and 11,348 cases; the latter is composed of patients with lung adenocarcinoma and squamous cell lung cancer. The inverse variance-weighted method was applied to estimate the causation between MS and lung cancer. To further evaluate the pleiotropy, the MR-Egger and Weighted median methods were implemented. RESULTS The results of MR analysis suggested a causal effect of MS on lung cancer incidence, with evidence of an increased risk for overall lung cancer [odds ratio (OR): 1.0648; 95% confidence interval (CI): 1.0163-1.1156; p = 0.0082]. However, subgroup analyses showed no significant causal relationships between MS and lung adenocarcinoma (OR = 1.0716; 95% CI 0.9840-1.1671, p = 0.1119) and squamous cell lung cancer (OR = 1.0284; 95% CI 0.9575-1.1045, p = 0.4424). In addition, no pleiotropy was found in our study. CONCLUSION Our study indicated that MS is a causal risk factor in the development of lung cancer. Further work is needed to elucidate the potential mechanisms.
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Affiliation(s)
- Fan Ge
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, First Clinical School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Zhenyu Huo
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Caichen Li
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Runchen Wang
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Rui Wang
- Department of Clinical Medicine, First Clinical School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yeling Liu
- Department of Clinical Medicine, Third Clinical School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Jiana Chen
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yi Lu
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yaokai Wen
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Yu Jiang
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Haoxin Peng
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Xiangrong Wu
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Clinical Medicine, Nanshan School, Guangzhou Medical University, Guangzhou, 511436, China
| | - Hengrui Liang
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Jianxing He
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
| | - Wenhua Liang
- Department of Thoracic Surgery and Oncology, China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China; Department of Oncology, the First People's Hospital of Zhaoqing, Zhaoqing, 526000, China.
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Evolving relationship between respiratory functions & impairment in sleep and cognition in patients with multiple sclerosis. Mult Scler Relat Disord 2020; 46:102514. [PMID: 32992131 DOI: 10.1016/j.msard.2020.102514] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 09/03/2020] [Accepted: 09/05/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND The most apparent source of disability in patients with multiple sclerosis (MS) is the physical and mental impact. The pathophysiological mechanisms of cognitive dysfunction are multifactorial although hypoventilation secondary to respiratory dysfunction may contribute to cognitive decline. METHODS This study was conducted on 146 MS patients with baseline clinical assessments including the Epworth sleepiness scale (ESS) and physical disability was assessed using the Expanded Disability Status Scale (EDSS). Cognitive testing was performed utilizing the Brief International Cognitive Assessment for Multiple Sclerosis (BICAMS) and the Perceived Deficits Questionnaire (PDQ). Respiratory functions were assessed by spirometry and the respiratory muscle functional assessment was done by maximal mouth pressure measurement. RESULTS The respiratory muscle function test had a significant negative correlation with the score of ESS and PDQ scale and a significant positive correlation with the BICAMS scale score (p < 0.001). The ESS and PDQ scores were significantly negatively correlated with forced expiratory volume in the first second (FEV1)/ forced vital capacity (FVC) (p = 0.03, 0.02), FVC supine (p = 0.03, 0.01), FVC upright- FVC supine (ΔFVC) (p < 0.001, <0.001) FEV1 (p < 0.001) and FVC (L) (p < 0.001), respectively. While the BICAMS showed a significant positive correlation with spirometry results except FVC upright. ESS scores were significantly correlated with the BICAMS and PDQ scale score (p < 0.001). CONCLUSION Among MS patients, impaired respiratory functions are significantly associated with sleep disturbance and cognitive impairment. Thus the spirometry and respiratory muscle strength assessment are necessary from the early phase of MS.
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Johansson K, Schalling E, Hartelius L. Self-Reported Changes in Cognition, Communication and Swallowing in Multiple Sclerosis: Data from the Swedish Multiple Sclerosis Registry and from a National Survey. Folia Phoniatr Logop 2020; 73:50-62. [PMID: 31962338 DOI: 10.1159/000505063] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 11/26/2019] [Indexed: 11/19/2022] Open
Abstract
PURPOSE The aim of this study was to investigate self-reported cognition, speech, communication and swallowing changes in a large sample of individuals with multiple sclerosis (MS) in Sweden. A second aim was to update information about speech and language pathology (SLP) services received by people with MS (pwMS). METHOD Self-ratings of cognition, speech/communication and swallowing registered by pwMS between 2012 and 2018 were retrieved from the Swedish MS Registry. In addition, more detailed information about speech, communication, swallowing and provision of SLP services was collected using an online survey distributed via a national patient organization. RESULTS In total, entries from 5,289 pwMS were retrieved from the MS Registry. Nearly two thirds of the respondents reported that cognition was affected to some degree, whereas approximately one third perceived some difficulties with speech/communication. A smaller group reported swallowing problems. The majority of those who reported problems with speech/communication also reported problems with cognition. Among the 440 individuals who responded to the MS survey, word-finding difficulties were the most frequently self-reported problem related to communication, and the second most common problem was getting off topic. In all, close to four out of five respondents experienced at least one symptom related to speech and communication, such as speech-related fatigue or imprecise articulation. Swallowing difficulties were reported by one out of four respondents in the MS survey. As a result of their speech difficulties, up to one in three experienced changes in professional or social roles and participation. A limited number of respondents had received SLP services, the most common intervention being voice training. CONCLUSIONS In MS, changes associated with cognition as well as speech/communication are frequent, cognitive-linguistic symptoms being the most common. Swallowing difficulties are also relatively prevalent. Access to SLP services seems to be insufficient compared to prevalence of perceived symptoms. Considering that the majority of pwMS are part of the working-age population, access to SLP services must be more highly prioritized and must address cognitive-linguistic problems as well as voice, speech and swallowing dysfunction.
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Affiliation(s)
- Kerstin Johansson
- Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden, .,Functional Area Speech and Language Pathology, Karolinska University Hospital, Stockholm, Sweden,
| | - Ellika Schalling
- Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Functional Area Speech and Language Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - Lena Hartelius
- Speech and Language Pathology Unit, Institute of Neuroscience and Physiology, Department of Health and Rehabilitation, Sahlgrenska Academy at the University of Gothenburg, Göteborg, Sweden
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Yang X, Hao Y, Zhang X, Geng Y, Ji L, Li G, Zhang Z. Mortality of Chinese patients with polymyositis and dermatomyositis. Clin Rheumatol 2020; 39:1569-1579. [DOI: 10.1007/s10067-019-04910-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 11/15/2019] [Accepted: 12/19/2019] [Indexed: 12/29/2022]
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Valenza MC, Prados-Román E, Granados-Santiago M, Torres-Sanchez I, Lopez-Lopez L, Cabrera-Martos I. Respiratory repercussions of neurological diseases and how best to manage them. Expert Rev Respir Med 2019; 14:89-102. [PMID: 31679407 DOI: 10.1080/17476348.2020.1689124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Introduction: The high incidence of respiratory impairments in patients with neurological diseases is recognized, but the design, dosage, and effectiveness of interventions to manage them are seen as an ongoing challenge.Areas covered: This article summarizes the evidence regarding the respiratory impairments in major neurological diseases, and how to best manage them.Expert opinion: On the balance of available evidence, respiratory impairments are part of the clinical profile of neurological diseases including Multiple Sclerosis, Stroke, and Parkinson's Disease, acquiring more importance as the pathologies progress. It is recognized that knowledge gaps remain in some areas of relevance related to respiratory function and further research is required. When considering the therapeutic options, the respiratory training emerges as the approach with most evidence. However, important questions remain unsolved: what kind, how much, and how to best include respiratory interventions is uncertain. At present, respiratory programs also fail to include clinically relevant factors such as ambulation and trunk stability.
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Affiliation(s)
- Marie Carmen Valenza
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Granada, Spain
| | - Esther Prados-Román
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Granada, Spain
| | | | - Irene Torres-Sanchez
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Granada, Spain
| | - Laura Lopez-Lopez
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Granada, Spain
| | - Irene Cabrera-Martos
- Department of Physiotherapy, Faculty of Health Sciences, University of Granada, Granada, Spain
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Taveira FM, Braz NFT, Comini-Frota ER, Teixeira AL, Domingues RB. Disability as a determinant of fatigue in MS patients. ARQUIVOS DE NEURO-PSIQUIATRIA 2019; 77:248-253. [DOI: 10.1590/0004-282x20190035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 01/09/2019] [Indexed: 01/26/2023]
Abstract
ABSTRACT Fatigue is one of the most frequent and disabling symptoms in multiple sclerosis (MS). Central, psychological, and peripheral factors may contribute to the occurrence of fatigue. Objectives: The current study aimed to evaluate potential fatigue determinants in patients with relapsing-remitting MS with a low functional impairment. Methods: We compared inflammatory markers, respiratory pressures, disability, and quality of life in 39 relapsing-remitting MS patients with and without fatigue. Results: Patients with relapsing-remitting MS with fatigue had higher Expanded Disability Status Scale scores (p = 0.002). We observed a significant association between the results of the Guy Neurological Disability Scale, the Functional Assessment of MS Quality of Life Rating Scale and the presence of fatigue (p < 0.05). Conclusions: The degree of functional impairment is a determinant for the presence of fatigue in MS patients, but respiratory function and inflammatory markers are not.
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Affiliation(s)
| | - Nayara F. T. Braz
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
| | | | - Antônio L. Teixeira
- Universidade Federal de Minas Gerais, Brasil; Universidade Federal de Minas Gerais, Brasil
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Levy J, Prigent H, Bensmail D. Respiratory rehabilitation in multiple sclerosis: A narrative review of rehabilitation techniques. Ann Phys Rehabil Med 2017; 61:38-45. [PMID: 29128525 DOI: 10.1016/j.rehab.2017.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 06/14/2017] [Accepted: 06/14/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Respiratory disorders in multiple sclerosis (MS) are an important issue. They can occur early during the course of the disease, are associated with the neurological impairment, and can lead to pneumonia and respiratory failure, which are the main causes of death in advanced MS. Prevailing impaired expiratory muscles and cough abilities has been demonstrated in this population and might constitute a specific target for rehabilitation interventions. However, international guidelines lack recommendations regarding respiratory rehabilitation in MS. Here we performed a systematic review of the published literature related to respiratory rehabilitation in MS. METHODS We searched the databases MEDLINE via PubMed, PEDro and Cochrane Library for English or French reports of clinical trials and well-designed cohorts published up to December 2016 with no restriction on start date by using the search terms "multiple sclerosis", "respiratory rehabilitation", "respiratory muscle training", "lung volume recruitment", "cough assistance", and "mechanical in-exsufflation". Literature reviews, case reports and physiological studies were excluded. The Maastricht criteria were used to assess the quality of clinical trials. We followed the Oxford Centre for Evidence-Based Medicine guidelines to determine level of evidence and grade of recommendations. RESULTS Among the 21 reports of studies initially selected, 11 were retained for review. Seven studies were randomized controlled trials (RCTs), 2 were non-RCTs, and 2 were observational studies. Respiratory muscle training (inspiratory and/or expiratory) by use of a portable resistive mouthpiece was the most frequently evaluated technique, with 2 level-1 RCTs. Another level-1 RCT evaluated deep-breathing exercises. All reviewed studies evaluated home-based rehabilitation programs and focused on spirometric outcomes. The disparities in outcome measures among published studies did not allow for a meta-analysis and cough assistance devices were not evaluated in this population. CONCLUSION Although respiratory muscle training can improve maximal respiratory pressure in MS and lung volume recruitment can slow the decline in vital capacity, evidence is lacking to recommend specific respiratory rehabilitation programs adapted to the level of disability induced by the disease.
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Affiliation(s)
- J Levy
- Department of physical medicine and rehabilitation, Raymond-Poincaré university hospital, AP-HP, 92380 Garches, France; UMR 1179, Inserm, university of Versailles Saint-Quentin-en-Yvelines, 78180 Montigny-le-Bretonneux, France.
| | - H Prigent
- Department of physiology, Raymond-Poincaré university hospital, AP-HP, 92380 Garches, France; UMR 1179, Inserm, university of Versailles Saint-Quentin-en-Yvelines, 78180 Montigny-le-Bretonneux, France.
| | - D Bensmail
- Department of physical medicine and rehabilitation, Raymond-Poincaré university hospital, AP-HP, 92380 Garches, France; UMR 1179, Inserm, university of Versailles Saint-Quentin-en-Yvelines, 78180 Montigny-le-Bretonneux, France.
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Levy J, Bensmail D, Brotier-Chomienne A, Butel S, Joussain C, Hugeron C, Prigent H. Respiratory impairment in multiple sclerosis: a study of respiratory function in wheelchair-bound patients. Eur J Neurol 2017; 24:497-502. [DOI: 10.1111/ene.13231] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 11/23/2016] [Indexed: 12/12/2022]
Affiliation(s)
- J. Levy
- Department of Physical Medicine and Rehabilitation; Raymond Poincaré University Hospital - APHP; Garches France
- UMR1179 - INSERM, Versailles Saint-Quentin-en-Yvelines University; Montigny-le-Bretonneux France
| | - D. Bensmail
- Department of Physical Medicine and Rehabilitation; Raymond Poincaré University Hospital - APHP; Garches France
- UMR1179 - INSERM, Versailles Saint-Quentin-en-Yvelines University; Montigny-le-Bretonneux France
| | - A. Brotier-Chomienne
- Department of Physical Medicine and Rehabilitation; Raymond Poincaré University Hospital - APHP; Garches France
| | - S. Butel
- Department of Physiology; Raymond Poincaré University Hospital - APHP; Garches France
| | - C. Joussain
- Department of Physical Medicine and Rehabilitation; Raymond Poincaré University Hospital - APHP; Garches France
- UMR1179 - INSERM, Versailles Saint-Quentin-en-Yvelines University; Montigny-le-Bretonneux France
| | - C. Hugeron
- Department of Physical Medicine and Rehabilitation; Raymond Poincaré University Hospital - APHP; Garches France
| | - H. Prigent
- UMR1179 - INSERM, Versailles Saint-Quentin-en-Yvelines University; Montigny-le-Bretonneux France
- Department of Physiology; Raymond Poincaré University Hospital - APHP; Garches France
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Tallner A, Streber R, Hentschke C, Morgott M, Geidl W, Mäurer M, Pfeifer K. Internet-Supported Physical Exercise Training for Persons with Multiple Sclerosis-A Randomised, Controlled Study. Int J Mol Sci 2016; 17:ijms17101667. [PMID: 27706046 PMCID: PMC5085700 DOI: 10.3390/ijms17101667] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 11/16/2022] Open
Abstract
Physical exercise is effective in improving functional outcomes in persons with multiple sclerosis (pwMS). We evaluated the feasibility and effectiveness of internet-based exercise training (e-training) for pwMS on health-related quality of life (HrQoL). Secondary outcomes were muscle strength, aerobic capacity, lung function, physical activity, and fatigue. This is a randomised, controlled trial with a wait-list control group. Data were collected at baseline, after three and six months, and analysed using a hybrid linear model. One-hundred twenty-six pwMS participated in the home-based aerobic (1×/week) and strength training (2×/week) intervention that was supervised and documented via an internet-platform. The intervention group received e-training for six months, and the control group received e-training after a three months waiting period. Significant differences between the groups were only observed for muscle strength (knee flexion (effect size ES = 0.3, p = 0.003), knee extension (ES = 0.24, p = 0.015)), peak expiratory flow (ES = 0.2, p = 0.039), and sports activity (ES = 0.33, p = 0.001) after three months. E-training had no effect on HrQoL but did on muscle strength, lung function, and physical activity. It is a promising and feasible approach to facilitate large-scale, yet individual, training support.
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Affiliation(s)
- Alexander Tallner
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - René Streber
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - Christian Hentschke
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - Marc Morgott
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - Wolfgang Geidl
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - Mathias Mäurer
- Department of Neurology, Stiftung Juliusspital, 97070 Würzburg, Germany.
| | - Klaus Pfeifer
- Division Exercise and Health, Institute of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
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Abstract
Objectives: To measure respiratory functions of ambulatory patients with multiple sclerosis and compare the results with expected values from healthy general population data. Further, to study the correlation of respiratory function impairment with the multiple sclerosis-induced disability level.Subjects: Thirty-eight patients with definite diagnosis of multiple sclerosis from the multiple sclerosis outpatient clinic.Methods: The Expanded Disability Status Scale (EDSS) scores (mean 4.34±1.39) were evaluated to measure disability level. Respiratory functions tested in the laboratory included spirometric (FVC, FEV1, FEV1/FVC), maximal inspiratory (MIP) and expiratory (MEP) mouth pressure measurements. Patients were clinically assessed using a pulmonary dysfunction index (PDI) and dyspnoea index; various breathing features were also recorded.Results: With respect to expected values from healthy general population, important decreases were found in mouth pressures with MIP (77%±23%, p ≃ 0) and MEP (60%±13%, p ≃ 0) while spirometric measures were significantly but less affected (FVC 94%±12%, p < 0.01, FEV191%±16%, p < 0.001). FEV1/FVC ratios were normal. Notable increases in PDI (5.58±0.68, p ≃ 0) and dyspnoea index (0.32±0.47, p ≃ 0) were observed. Significant relationships (p < 0.01) between respiratory function impairment and the multiple sclerosis disability level could be detected for FVC, MEP and PDI.Conclusions: Multiple sclerosis clearly impairs respiratory functions; maximal mouth pressures are more severely reduced. This impairment increases with multiple sclerosis-induced disability level but is found to be independent from duration of disease.
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Affiliation(s)
- F K Mutluay
- Neurology Department, Cerrahpasa School of Medicine, Istanbul University, Turkey.
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Mutluay FK, Demir R, Ozyilmaz S, Caglar AT, Altintas A, Gurses HN. Breathing-enhanced upper extremity exercises for patients with multiple sclerosis. Clin Rehabil 2016; 21:595-602. [PMID: 17702701 DOI: 10.1177/0269215507075492] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To explore the effectiveness of breathing-enhanced upper extremity exercises on the respiratory function of patients with multiple sclerosis.Design: Randomized controlled study of six-week duration.Subjects: Forty patients with multiple sclerosis (age 39.2 ± 7 years; Kurtzke Expanded Disability Status Scale scores: 4.51 ± 1.55) randomly divided into two groups.Methods: The training group followed a six-week home training programme designed to strengthen accessory respiratory muscles. Controls performed no exercises. All subjects submitted to baseline and post-training tests of spirometry, respiratory muscle strength and 6-minute walking. They were also assessed with pulmonary dysfunction and exertion fatigue indices.Results: Spirometry revealed clear improvement in forced expiratory volume in 1 second (FEV1) (+13%, P = 0.003) resulting in higher FEV1/FVC (forced vital capacity) (+8.5%, P = 0.03). Maximal inspiratory pressure ( PImax) increased by +7.1% but not significantly. Maximal expiratory pressure ( PEmax) and FVC were significantly higher (by +7.1%, P = 0.0066 and +4.8%, P = 0.036 respectively) with respect to baseline measures. Pulmonary dysfunction was reduced (—9%, P = 0.002) while 6-minute walking distance was longer (+16%, P = 0.029) at equal exertion fatigue level.Conclusions: The programme improved most pulmonary performance measures and had clinical significance. Its sustained application may prevent respiratory complications frequently observed in the later stages of multiple sclerosis.
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Affiliation(s)
- F K Mutluay
- Neurology Department, Cerrahpasa School of Medicine, Turkey.
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Young L, Healey K, Charlton M, Schmid K, Zabad R, Wester R. A home-based comprehensive care model in patients with Multiple Sclerosis: A study pre-protocol. F1000Res 2015; 4:872. [PMID: 26673815 PMCID: PMC4670009 DOI: 10.12688/f1000research.7040.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/10/2015] [Indexed: 01/18/2023] Open
Abstract
Background Disability is prevalent in individuals with multiple sclerosis (MS), leading to difficulty in care access, significant caregiver burden, immense challenges in self-care and great societal burden. Without highly coordinated, competent and accessible care, individuals living with progressive MS experience psychological distress, poor quality of life, suffer from life-threatening complications, and have frequent but avoidable healthcare utilizations. Unfortunately, current healthcare delivery models present severe limitations in providing easily accessible, patient-centered, coordinated comprehensive care to those with progressive MS. We propose a home-based comprehensive care model (MAHA) to address the unmet needs, challenges, and avoidable complications in individuals with progressive MS with disabling disease. Objective The article aims to describe the study design and methods used to implement and evaluate the proposed intervention. Method The study will use a randomized controlled design to evaluate the feasibility of providing a 24-month, home-based, patient-centered comprehensive care program to improve quality of life, reduce complications and healthcare utilizations overtime (quarterly) for 24 months. A transdisciplinary team led by a MS-Comprehensivist will carry out this project. Fifty MS patients will be randomly assigned to the intervention and usual care program using block randomization procedures. We hypothesize that patients in the intervention group will have fewer complications, higher quality of life, greater satisfaction with care, and reduced healthcare utilization. The proposed project is also expected to be financially sustainable in fee-for-service models but best suited for and gain financial success in valued-based care systems. Discussion This is the first study to examine the feasibility and effectiveness of a home-based comprehensive care management program in MS patients living with progressive disability. If successful, it will have far-reaching implications in research, education and practice in terms of providing high quality but affordable care to population living with severe complex, disabling conditions.
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Affiliation(s)
- Lufei Young
- College of Nursing, University of Nebraska Medical Center, Lincoln, Nebraska, USA
| | - Kathleen Healey
- Multiple Sclerosis Program, Department of Neurological Sciences, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Mary Charlton
- Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Kendra Schmid
- Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Rana Zabad
- Multiple Sclerosis Program, Department of Neurological Sciences, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Rebecca Wester
- Department of Family Medicine, College of Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
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Tzelepis GE, McCool FD. Respiratory dysfunction in multiple sclerosis. Respir Med 2015; 109:671-9. [PMID: 25724874 DOI: 10.1016/j.rmed.2015.01.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 12/08/2014] [Accepted: 01/19/2015] [Indexed: 11/24/2022]
Abstract
Respiratory dysfunction frequently occurs in patients with advanced multiple sclerosis (MS), and may manifest as acute or chronic respiratory failure, disordered control of breathing, respiratory muscle weakness, sleep disordered breathing, or neurogenic pulmonary edema. The underlying pathophysiology is related to demyelinating plaques involving the brain stem or spinal cord. Respiratory complications such as aspiration, lung infections and respiratory failure are typically seen in patients with long-standing MS. Acute respiratory failure is uncommon and due to newly appearing demyelinating plaques extensively involving areas of the brain stem or spinal cord. Early recognition of MS patients at risk for respiratory complications allows for the timely implementation of care and measures to decrease disease associated morbidity and mortality.
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Affiliation(s)
- George E Tzelepis
- Department of Pathophysiology and Laiko General Hospital, and University of Athens Medical School, Athens, Greece; Department of Pulmonary and Critical Care Medicine, The Memorial Hospital RI, and The Warren Alpert Medical School of Brown University, Providence, RI, USA.
| | - F Dennis McCool
- Department of Pathophysiology and Laiko General Hospital, and University of Athens Medical School, Athens, Greece; Department of Pulmonary and Critical Care Medicine, The Memorial Hospital RI, and The Warren Alpert Medical School of Brown University, Providence, RI, USA
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Internal jugular vein blood flow in multiple sclerosis patients and matched controls. PLoS One 2014; 9:e92730. [PMID: 24675965 PMCID: PMC3968019 DOI: 10.1371/journal.pone.0092730] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/24/2014] [Indexed: 01/28/2023] Open
Abstract
The aim of the study was to investigate the Internal Jugular Veins dynamics using contrast enhanced ultrasonography in Multiple Sclerosis patients, clinically isolated syndrome patients and healthy controls. Contrast enhanced ultrasonography imaging of the Internal Jugular Vein was performed in fifty-eight patients with Multiple Sclerosis, seven clinically isolated syndrome patients and in thirteen healthy controls. Time-intensity curves were quantified using a semi-automated method and compared with clinical disease outcomes. Wash-out parameters were calculated and six Time-intensity curves shapes were created. Significantly reduction of wash-out rate in Internal Jugular Veins was detected in Multiple Sclerosis patients compared to healthy controls [22.2% (2.7%–65.9%) vs. 33.4% (16.2%–76.8%); P<0.005]. Internal Jugular Vein enhancement was heterogeneous in patients with Multiple Sclerosis and consisted of slow wash-out Time-intensity curves shapes, compared with almost only one type of Time-intensity curves shape in control subjects that correspond to fast enhancement and fast wash-out. The vein wash-in parameters were similar in Multiple Sclerosis group compared with controls. A significant correlation was found between Internal Jugular Vein wash-out and level of disability (R = −0.402, p<0.05). Contrast enhanced ultrasonography of the Internal Jugular Vein with time intensity curve analysis revealed alterations of cerebral venous outflow in Multiple Sclerosis patients, however mechanisms that determine this condition remains unclear.
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Taveira FM, Teixeira AL, Domingues RB. Early respiratory evaluation should be carried out systematically in patients with multiple sclerosis. ARQUIVOS DE NEURO-PSIQUIATRIA 2013; 71:142-5. [DOI: 10.1590/s0004-282x2013000300003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 10/01/2012] [Indexed: 11/21/2022]
Abstract
The present study aimed at evaluating respiratory parameters in multiple sclerosis (MS). The sample comprised 30 patients with MS diagnosis and 30 healthy subjects, matched by gender and age. Neurological assessment, expanded disability status scale (EDSS), manovacuometry, and peak flow (PEF) were performed. Patients with MS had lower values of maximum inspiratory (MIP) and expiratory (MEP) pressures and PEF compared to healthy controls. It was shown that respiratory impairment may be present in MS patients with low functional disability by EDSS. The data suggest that manovacuometry and PEF determination should be carried out systematically in patients with MS, and may be a reliable tool for the early detection of respiratory impairment allowing early respiratory rehabilitation.
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Affiliation(s)
- Fernanda Machado Taveira
- Physical therapist, Master's degree in Neurosciences, Federal University of Minas Gerais, Brazil
| | | | - Renan Barros Domingues
- Santa Casa School of Health Sciences, Brazil; Federal University of Minas Gerais, Brazil
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21
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Abstract
Introduction Pulmonary function abnormalities have been described in multiple sclerosis including reductions in forced vital capacity (FVC) and cough but the time course of this impairment is unknown. Peak cough flow (PCF) is an important parameter for patients with respiratory muscle weakness and a reduced PCF has a direct impact on airway clearance and may therefore increase the risk of respiratory tract infections. Lung volume recruitment is a technique that improves PCF by inflating the lungs to their maximal insufflation capacity. Objectives Our goals were to describe the rate of decline of pulmonary function and PCF in patients with multiple sclerosis and describe the use of lung volume recruitment in this population. Methods We reviewed all patients with multiple sclerosis referred to a respiratory neuromuscular rehabilitation clinic from February 1999 until December 2010. Lung volume recruitment was attempted in patients with FVC <80% predicted. Regular twice daily lung volume recruitment was prescribed if it resulted in a significant improvement in the laboratory. Results There were 79 patients included, 35 of whom were seen more than once. A baseline FVC <80% predicted was present in 82% of patients and 80% of patients had a PCF insufficient for airway clearance. There was a significant decline in FVC (122.6 mL/y, 95% CI 54.9–190.3) and PCF (192 mL/s/y, 95% 72–311) over a median follow-up time of 13.4 months. Lung volume recruitment was associated with a slower decline in FVC (p<0.0001) and PCF (p = 0.042). Conclusion Pulmonary function and cough decline significantly over time in selected patients with multiple sclerosis and lung volume recruitment is associated with a slower rate of decline in lung function and peak cough flow. Given design limitations, additional studies are needed to assess the role of lung volume recruitment in patients with multiple sclerosis.
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Natour Y, Marie B, Aljunidy L. The respiratory muscle capabilities of Jordanian patients with multiple sclerosis. J Voice 2012. [PMID: 23177743 DOI: 10.1016/j.jvoice.2012.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The aim of this study was to evaluate the maximum expiratory pressure (MEP) and maximum inspiratory pressure (MIP) of Jordanian patients (19 females and 20 males) with multiple sclerosis (MS). A control group of 28 females and 26 males was included for the purposes of comparison. For the MS group, MIP results were as follows: female = 53.5 ± 36, male = 88.6 ± 40.9. MEP results were: female = 37.7 ± 13, male = 8.94 ± 30.3. The control group results were as follows: MIP female = 56.2 ± 43.8, male = 109.2 ± 49.8; MEP results were female = 70.9 ± 16.7, male = 115 ± 44.8). The control group results were as follows: MIP female = 56.2 ± 43.8, male = 109.2 ± 49.8; MEP results were female = 70.9 ± 16.7, male = 115 ± 44.8). In the patient group, there were significant differences between the two genders' MIP and MEP values (P=0.00). Significant differences were also found between the MS group and control group in MEP values (P=0.00) but not in MIP values (P=0.208). Possible psychosocial consequences of MS on Jordanian patients were measured using the Voice Handicap Index (VHI)-Arab with the following results for female patients: functional=7.3±6.9, physical=6.7±7.1, emotional=5±6.8, and total=19±19.7 and for male patients: functional=8.4±8.5, physical=9.8±9.3, emotional=9.6±11.4, and total=27.7±19.7. The VHI-Arab scores for female controls were as follows: functional = 5.1 ± 3.6, physical = 4.4 ± 2.9, emotional = 1.9 ± 2, and total = 11.4 ± 6.3). Male controls VHI-Arab scores were as follows: functional = 3.8 ± 3.4, physical = 5 ± 3.6, emotional = 1.2 ± 1.4, and total = 10.1 ± 6.2. Significant differences were found between the MS group and control group in the VHI-Arab functional domain (VHIF) (P=0.006), physical domain (VHIP) (P=0.006), emotional domain (VHIE) (P=0.00), and total score (VHIT) (P=0.00) values. In conclusion, MS can limit effective communication and may cause higher perception of voice handicap.
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Affiliation(s)
- Yaser Natour
- Department of Special Education, Faculty of Education, United Arab Emirates University, Al-Ain, United Arab Emirates.
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23
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Lane MA. Spinal respiratory motoneurons and interneurons. Respir Physiol Neurobiol 2011; 179:3-13. [DOI: 10.1016/j.resp.2011.07.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Revised: 07/03/2011] [Accepted: 07/07/2011] [Indexed: 01/30/2023]
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Wetzel JL, Fry DK, Pfalzer LA. Six-minute walk test for persons with mild or moderate disability from multiple sclerosis: performance and explanatory factors. Physiother Can 2011; 63:166-80. [PMID: 22379256 DOI: 10.3138/ptc.2009-62] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE The primary purpose of this study was to determine the extent to which health factors, functional measures, and pulmonary impairment explain performance on 6-Minute Walk Test (6MWT) distance in ambulatory persons with multiple sclerosis (MS). Another purpose was to determine the effect of disability and age on 6MWT performance and explanatory factors. METHODS A cross-sectional study design was used to evaluate factors that explain performance on the 6MWT in 64 community-dwelling persons with MS-related disability (Expanded Disability Status Scale [EDSS] 3.8±1.6). Of the 64 participants, 43 (67.2%) exhibited mild disability (EDSS <4.0) and 21 (32.8%) had moderate disability (EDSS 4.0-6.5). A regression analysis compared 6MWT performance to measures of health factors (EDSS, number of medications, number of comorbidities, resting HR, systolic and diastolic blood pressure [BP]); physical performance (functional stair test [FST], sit-to-stand test [SST], static standing balance [BAL], Fatigue Severity Scale [FSS], Activities-specific Balance Confidence [ABC] Scale); and pulmonary function (forced expiratory volume in 1 second [FEV(1)], forced vital capacity [FVC], maximal voluntary ventilation [MVV], maximal inspiratory pressure [MIP], maximal expiratory pressure [MEP]). RESULTS EDSS, ABC, FST, SST, BAL, MVV, MIP, and MEP were significantly associated with 6MWT distance after adjusting for age. Multiple step-wise linear regression analysis revealed that ABC, FST, and BAL were significant and independent explanatory factors of 6MWT distance. ABC and FST explained 75% of the variance in 6MWT performance (R(2)=0.75). Curvilinear regression analysis revealed that the FST is the most significant explanatory factor for 6MWT distance, explaining 79% of the variance (R(2)=0.79). CONCLUSIONS 6MWT performance in persons with MS was explained by balance confidence (ABC) and stair-climbing ability (FST). The ABC and FST may be practical clinical measures for explaining walking ability and determining risk for disablement in persons with MS.
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Affiliation(s)
- Jane L Wetzel
- Jane L. Wetzel, PT, PhD: Associate Professor, Department of Physical Therapy, Youngstown State University, Youngstown, Ohio (current); Duquesne University, Pittsburgh, Pennsylvania (at time of study)
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Bagnato F, Centonze D, Galgani S, Grasso MG, Haggiag S, Strano S. Painful and involuntary multiple sclerosis. Expert Opin Pharmacother 2011; 12:763-77. [PMID: 21323633 DOI: 10.1517/14656566.2011.540239] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Pain, dysphagia, respiratory problems, sexual and cardiovascular dysfunctions may occur in patients with MS. AREAS COVERED In the present review, we attempt to summarize the current knowledge on the impact pain, dysphagia, respiratory problems, sexual and cardiovascular dysfunctions have in patients with MS. EXPERT OPINION To effectively manage MS, it is essential that these symptoms are recognized as early as possible and treated by a rehabilitative multidisciplinary approach, based on proven scientific evidence.
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Affiliation(s)
- Francesca Bagnato
- Vanderbilt University Institute of Imaging Science 1161 21st Ave. S. AA1105 MCN Radiology Department, Nashville, TN 37232, USA.
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Pfalzer L, Fry D. Effects of a 10-week inspiratory muscle training program on lower-extremity mobility in people with multiple sclerosis: a randomized controlled trial. Int J MS Care 2011; 13:32-42. [PMID: 24453703 PMCID: PMC3882946 DOI: 10.7224/1537-2073-13.1.32] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pulmonary muscle weakness is common in ambulatory people with multiple sclerosis (MS) and may lead to deficits in mobility function. The purpose of this study was to examine the effect of a 10-week home-based exercise program using an inspiratory muscle threshold trainer (IMT) on the results of four lower-extremity physical performance tests in people with MS. The study design was a two-group (experimental-control), pretest-posttest study. Outcome measures consisted of pulmonary function measures including maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP), and maximal voluntary ventilation (MVV), and the following lower-extremity physical performance measures: the 6-Minute Walk (6MW) distance, gait velocity (GV), the Sit-to-Stand Test (SST), the Functional Stair Test (FST), and a balance test (BAL). A total of 46 ambulatory participants (Expanded Disability Status Scale [EDSS] score, 2.0-6.5) with MS were randomly assigned to an intervention group (mean EDSS score, 4.1) that received 10 weeks of home-based inspiratory muscle training or a nontreatment control group (mean EDSS score, 3.2). Of the original 46 participants, 20 intervention group participants and 19 control group participants completed the study. Compared with the control group, the intervention group made significantly greater gains in inspiratory muscle strength (P = .003) and timed balance scores (P = .008). A nonsignificant improvement in 6MW distance (P = .086) was also noted in the IMT-trained group as compared with the control group. This is the first study directly linking improvement in respiratory function to improvement in physical performance function in people with mild-to-moderate disability due to MS.
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Affiliation(s)
- Lucinda Pfalzer
- Physical Therapy Department, School of Health Professions and Studies, University of Michigan-Flint, Flint, MI, USA
| | - Donna Fry
- Physical Therapy Department, School of Health Professions and Studies, University of Michigan-Flint, Flint, MI, USA
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Randomized control trial of effects of a 10-week inspiratory muscle training program on measures of pulmonary function in persons with multiple sclerosis. J Neurol Phys Ther 2008; 31:162-72. [PMID: 18172412 DOI: 10.1097/npt.0b013e31815ce136] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Pulmonary impairments have long been recognized as major causes of morbidity and mortality in individuals with advanced multiple sclerosis (MS). This study was designed to determine if a 10-week home exercise inspiratory training program in community-dwelling persons with MS improves pulmonary muscle strength and endurance. Forty-six ambulatory individuals with clinically diagnosed MS [Expanded Disability Status Scale (EDSS) 2.0-6.5, intervention group mean = 3.96 and control group mean = 3.36] were randomly assigned to an intervention group that received 10 weeks of inspiratory muscle strength training (IMT) or a nontreatment control group. Twenty-one subjects in the control group and 20 subjects in the intervention group completed the study. The intervention group demonstrated significantly greater improvement than the control group in maximal inspiratory pressure (P < 0.001). When compared to the control group, no significant differences were noted for maximal expiratory pressure or maximal ventilation volume after training in the intervention group. Baseline and postexercise training comparison of secondary pulmonary expiratory outcomes were significant in the intervention group for forced expiratory volume at one second (FEV1) (P = 0.014), forced vital capacity (FVC) (P = 0.041), and midexpiratory flow rate(FEF(25-75%)) (P = 0.011). No significant changes were noted for the control group. Thus, IMT significantly increased inspiratory muscle strength and resulted in generalized improvements in expiratory pulmonary function in persons with MS who have minimal to moderate disability. Future studies are needed that focus on the long-term effects of IMT with increased resistance and the impact it has on increasing pulmonary function and functional performance.
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Gallien P, Nicolas B, Robineau S, Pétrilli S, Houedakor J, Durufle A. Réentrainement à l'effort et sclérose en plaques. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.annrmp.2007.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
Multiple sclerosis (MS) is a chronic progressive disease which is the leading cause, after road traffic accidents, of handicap in young subjects. The large range of symptoms associated with MS lead to continuing decline in mood and quality of life. Despite therapeutic advances, functional impairments have significant consequences. Neurorehabilitation can be highly contributive in this disease with the goals of increasing independence and quality-of-life and improving functional capacities. Individualized programs elaborated by a multidisciplinary team of experts are the key to success of rehabilitation. Assessment is difficult because of the underlying conflict between the philosophies of rehabilitation and evidence-based medicine. The aim of this paper is to provide an overview of MS rehabilitation. Physical exercise is safe and should be encouraged for people with MS. Some studies have shown that supervised exercises have a beneficial effect on MS disability and quality of life. Inpatient rehabilitation for MS yields short-term benefits in function, mobility and quality of life; periodic hospitalization may be needed. In the future, rehabilitation professionals will have to learn how to anticipate patient needs and lay the groundwork for services and equipment in advance. Rehabilitation is one of the treatments of MS patients and should be viewed as an ongoing process to maintain and restore maximum function and quality of life.
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Affiliation(s)
- C Donzé
- Service de médecine physique et réadaptation fonctionnelle, groupe hospitalier de l'Institut catholique de Lille, Lille, France.
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Gallien P, Nicolas B, Robineau S, Pétrilli S, Houedakor J, Durufle A. Physical training and multiple sclerosis. ACTA ACUST UNITED AC 2007; 50:373-6, 369-72. [PMID: 17482708 DOI: 10.1016/j.annrmp.2007.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2007] [Accepted: 04/03/2007] [Indexed: 10/23/2022]
Abstract
For many years, patients with multiple sclerosis (MS) were advised to avoid exercise because of the risk of increased neurological impairment. This article reviews the literature related to MS and physical exercise. Physical exercise depends on patients' physiological tolerance and response to exercise. MS patients can exhibit dysfunction of cardiovascular adjustment accompanied by respiratory involvement, which can alter aerobic capacity. These abnormalities tend to increase with the neurological impairment. Muscle weakness is the consequence of not only altered central motor drive but also disuse. Several studies have shown the benefits of physical training, with improvements in aerobic capacity, gait parameters and fatigue, and an influence on quality of life. Regular aerobic physical activity is necessary to maintain the benefit of physical training.
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Affiliation(s)
- P Gallien
- Centre MPR, Notre-Dame-de-Lourdes, 54, rue Saint-Hélier, 35000 Rennes, France.
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Altintas A, Demir T, Ikitimur HD, Yildirim N. Pulmonary function in multiple sclerosis without any respiratory complaints. Clin Neurol Neurosurg 2007; 109:242-6. [PMID: 17046152 DOI: 10.1016/j.clineuro.2006.09.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2006] [Revised: 09/12/2006] [Accepted: 09/14/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Pulmonary complications in severe multiple sclerosis (MS) are often seen secondary to respiratory muscle dysfunction. The development of respiratory muscle dysfunction and its association with disability during the course of MS is unknown. In our study, we investigated the predictive value of respiratory muscle functions and the change in forced vital capacity (Delta forced vital capacity [FVC]; FVC upright-FVC supine) to detect deterioration of respiratory muscle functions in the early phase of MS. PATIENTS AND METHODS Twenty-one MS patients with a median age of 34.5+/-9.45 years were enrolled. Fourteen cases were relapsing-remitting, six were secondary progressive, one was primary progressive type. The mean duration of disease was 10.76+/-6.6 years. Seventeen healthy subjects with a median age of 40.7+/-7.6 years were chosen as a control group. Smoking habit was similar in both groups. Pulmonary function tests (PFT), lung volumes, diffusion, respiratory muscle function ( P(Imax) , P(Emax)), mouth occlusion pressure, and indirect sign of respiratory center function (P(0.1)) tests were performed. PFT were repeated in supine and upright positions. RESULTS Our results in the MS group and the control group, respectively, were: diffusion (DL(CO): 18.8+/-4.2 vs. 26.4+/-7.3 mL/mmHg/min), P(I(max) (82.1+/-26.3 vs. 109.1+/-23.3 cm H(2)O), P(E(max) (119.2+/-42 vs. 171.8+/-50.2 cm H(2)O), P(0.1) (2.6+/-0.7 vs. 4.2+/-0.7). All parameters were lower in the MS group compared with the control group (p<0.05). In the MS group, FVC values in the upright position were higher than FVC values in the supine position. The difference in FVC values in MS patients between the upright and supine positions (Delta FVC) was also found to be significantly higher than in the control group (Delta FVC 262.3+/-247.6 (MS), 98.8+/-179.1 mL (CONTROL)) (p<0.01). CONCLUSION Our results indicate the presence of pulmonary dysfunction in MS even in the absence of any respiratory symptoms.
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Affiliation(s)
- Ayse Altintas
- Istanbul University, Cerrahpasa Medical Faculty, Department of Neurology, Istanbul, Turkey
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Abstract
Purpose. This study investigated the effect of expiratory muscle strength training (EMST) on voice production, dysarthria, and voice-related quality-of-life issues in persons with multiple sclerosis (PwMS). It was hypothesized that PwMS would have improved voice production and reduced voice-related quality-of-life issues following EMST. Participants and Methods. Seventeen participants with MS and 14 healthy (H) controls completed 8 weeks of EMST, followed by 4 weeks of no training. Analyzed outcomes as a function of EMST were maximal expiratory pressure (MEP), sustained vowel prolongation (SVP), words per minute (WPM) measured from connected speech, and quality-of-life indices related to the presence of the dysarthria and dysphonia. Results. PwMS had lower MEPs, shorter SVP, and less WPM than the controls prior to training. Following EMST, both groups had significant improvement in MEPs that stayed above baseline after training halted. EMST did not improve voice production or voice-related quality of life for PwMS. Conclusion. Respiratory muscle weakness is present in PwMS having mild- to moderate-level disability. EMST improved expiratory muscle strength but did not statistically change objective and subjective components of voice/speech production in PwMS.
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Affiliation(s)
- T Chiara
- Malcom Randall VA Medical Center, Brain Rehabilitation Research Center, Gainesville, FL 32608, USA.
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Sasaki M. The Effect of Expiratory Muscle Training on Pulmonary Function in Normal Subjects. J Phys Ther Sci 2007. [DOI: 10.1589/jpts.29.197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Sasaki M. The Effect of Expiratory Muscle Training on Pulmonary Function in Normal Subjects. J Phys Ther Sci 2007. [DOI: 10.1589/jpts.19.197] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Makoto Sasaki
- Course of Physical Therapy, School of Health Sciences, Akita University
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Rasova K, Havrdova E, Brandejsky P, Zálisová M, Foubikova B, Martinkova P. Comparison of the influence of different rehabilitation programmes on clinical, spirometric and spiroergometric parameters in patients with multiple sclerosis. Mult Scler 2006; 12:227-34. [PMID: 16629428 DOI: 10.1191/135248506ms1248oa] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
PURPOSE The aim of this study was to compare the effect of four different programmes on spiroergometric, spirometric and clinical parameters in multiple sclerosis (MS) patients. METHODS One hundred and twelve MS patients were divided into four groups. The first group underwent neurophysiologically based physiotherapy, the second aerobic training, the third combined therapy (neurophysiologically based physiotherapy and aerobic training) and the fourth did not change any habits. Seventeen patients did not finish the study. Patients were examined on impairment (Expanded Disability Status Scale), disability (Barthel Index), handicap (Environment Status Scale), quality of life (Multiple Sclerosis Quality of Life), fatigue (Modified Fatigue Impact Scale), depression (Beck Depression Inventory Score), respiratory function (spirometric parameters on spirometry) and physical fitness (spiroergometric parameters on a bicycle ergometer). RESULTS The patients who participated in one of our training programmes showed a significant improvement of the examined parameters in comparison to those who did not change their present habits. Each of the four training programmes had a different impact on the parameters, which means that each of them had a different effect. The neurophysiologically based physiotherapy had the greatest impact on impairment, and the aerobic training on spirometric and spiroergometric parameters. All methods (the neurophysiologically based physiotherapy, the aerobic training and the combined programme) had an impact on fatigue.
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Affiliation(s)
- K Rasova
- Department of Neurology, 1st Medical Faculty, Charles University in Prague and General Faculty Hospital, Czech Republic.
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Chiara T, Martin AD, Davenport PW, Bolser DC. Expiratory muscle strength training in persons with multiple sclerosis having mild to moderate disability: effect on maximal expiratory pressure, pulmonary function, and maximal voluntary cough. Arch Phys Med Rehabil 2006; 87:468-73. [PMID: 16571384 PMCID: PMC3121162 DOI: 10.1016/j.apmr.2005.12.035] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2005] [Accepted: 12/09/2005] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To determine the effect of expiratory muscle strength training (EMST) on maximal expiratory strength, pulmonary function, and maximal voluntary cough in persons with multiple sclerosis (MS) having mild to moderate disability. DESIGN Before-after trial. SETTING Assessments were completed in the privacy of the subject's home or exercise physiology laboratory. PARTICIPANTS Seventeen persons with MS were age- and sex-matched to 14 healthy controls. INTERVENTION Eight weeks of EMST and 4 weeks of detraining. MAIN OUTCOME MEASURES Maximal respiratory pressures, pulmonary function, and maximal voluntary cough were assessed 3 times (pretraining, posttraining, detraining). Maximal expiratory pressure (MEP) was assessed weekly and training intensity adjusted based on the new measurement. RESULTS Subjects with MS had lower MEP, decreased pulmonary function, and weaker maximal voluntary cough at each assessment. EMST increased MEP and peak expiratory flow. However, improvement in maximal voluntary cough only occurred in subjects with a moderate level of disability when the MS group was subdivided into mild and moderate disability levels based on the Expanded Disability Status Scale. CONCLUSIONS EMST is a viable tool to enhance the strength of the respiratory muscles. However, further work is needed to determine the best parameters to assess change in cough following EMST.
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Affiliation(s)
- Toni Chiara
- Brain Rehabilitation Research Center, Malcom Randall VA Medical Center, Gainesville, FL 32608, USA.
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Abstract
The act of breathing depends on coordinated activity of the respiratory muscles to generate subatmospheric pressure. This action is compromised by disease states affecting anatomical sites ranging from the cerebral cortex to the alveolar sac. Weakness of the respiratory muscles can dominate the clinical manifestations in the later stages of several primary neurologic and neuromuscular disorders in a manner unique to each disease state. Structural abnormalities of the thoracic cage, such as scoliosis or flail chest, interfere with the action of the respiratory muscles-again in a manner unique to each disease state. The hyperinflation that accompanies diseases of the airways interferes with the ability of the respiratory muscles to generate subatmospheric pressure and it increases the load on the respiratory muscles. Impaired respiratory muscle function is the most severe consequence of several newly described syndromes affecting critically ill patients. Research on the respiratory muscles embraces techniques of molecular biology, integrative physiology, and controlled clinical trials. A detailed understanding of disease states affecting the respiratory muscles is necessary for every physician who practices pulmonary medicine or critical care medicine.
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Affiliation(s)
- Franco Laghi
- Division of Pulmonary and Critical Care Medicine, Edward Hines, Jr. VA Hospital, 111 N. 5th Avenue and Roosevelt Road, Hines, IL 60141, USA.
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Terzano C, Ricci A, Petroianni A, Laurendi G, Mammarella A, Paoletti V, Marziali M, De Luca N. Lipoid pneumonia in multiple sclerosis: an insidious complication--case report. Adv Ther 2003; 20:138-42. [PMID: 12956255 DOI: 10.1007/bf02850200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Claudio Terzano
- Department of Cardiovascular and Respiratory Sciences, University La Sapienza, Rome, Italy
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Gosselink R, Kovacs L, Ketelaer P, Carton H, Decramer M. Respiratory muscle weakness and respiratory muscle training in severely disabled multiple sclerosis patients. Arch Phys Med Rehabil 2000; 81:747-51. [PMID: 10857518 DOI: 10.1016/s0003-9993(00)90105-9] [Citation(s) in RCA: 116] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate the contribution of respiratory muscle weakness (part 1) and respiratory muscle training (part 2) to pulmonary function, cough efficacy, and functional status in patients with advanced multiple sclerosis (MS). DESIGN Survey (part 1) and randomized controlled trial (part 2). SETTING Rehabilitation center for MS. PATIENTS Twenty-eight bedridden or wheelchair-bound MS patients (part 1); 18 patients were randomly assigned to a training group (n = 9) or a control group (n = 9) (part 2). INTERVENTION The training group (part 2) performed three series of 15 contractions against an expiratory resistance (60% maximum expiratory pressure [PEmax]) two times a day, whereas the control group performed breathing exercises to enhance maximal inspirations. MAIN OUTCOME MEASURES Forced vital capacity (FVC), inspiratory, and expiratory muscle strength (PImax and PEmax), neck flexion force (NFF), cough efficacy by means of the Pulmonary Index (PI), and functional status by means of the Extended Disability Status Scale (EDSS). RESULTS Part 1 revealed a significantly reduced FVC (43% +/- 26% predicted), PEmax (18% +/- 8% predicted), and PImax (27% +/- 11% predicted), whereas NFF was only mildly reduced (93% +/- 26% predicted). The PI (median score, 10) and EDSS (median score, 8.5) were severely reduced. PEmax was significantly correlated to FVC, EDSS, and PI (r = .77, -.79, and -.47, respectively). In stepwise multiple regression analysis. PEmax was the only factor contributing to the explained variance in FVC (R2 = .60), whereas body weight (R2 = .41) was the only factor for the PI. In part 2, changes in PImax and PEmax tended to be higher in the training group (p = .06 and p = .07, respectively). The PI was significantly improved after 3 months of training compared with the control group (p < .05). After 6 months, the PI remained significantly better in the training group. CONCLUSIONS Expiratory muscle strength was significantly reduced and related to FVC, cough efficacy, and functional status. Expiratory muscle training tended to enhance inspiratory and expiratory muscle strength. In addition, subjectively and objectively rated cough efficacy improved significantly and lasted for 3 months after training cessation.
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Affiliation(s)
- R Gosselink
- Respiratory Rehabilitation and Respiratory Division, University Hospitals, Katholieke Universiteit Leuven, Belgium
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