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Silva de Sousa A, Pereira da Rocha A, Brandão Tavares DR, Frazão Okazaki JÉ, de Andrade Santana MV, Fernandes Moça Trevisani V, Pereira Nunes Pinto AC. Respiratory muscle training for obstructive sleep apnea: Systematic review and meta-analysis. J Sleep Res 2024; 33:e13941. [PMID: 37258418 DOI: 10.1111/jsr.13941] [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: 02/03/2023] [Revised: 04/22/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023]
Abstract
Obstructive sleep apnea is the most common sleep disorder. This review aims to evaluate the effectiveness and safety of respiratory muscle training in the treatment of patients with obstructive sleep apnea. The study protocol was registered in Prospero Platform (CRD42018096980). We performed searches in the main databases: Medical Literature Analysis and Retrieval System Online (MEDLINE) via Pubmed; Excerpta Medica dataBASE (Embase) via Elsevier; Cochrane Central Register of Controlled Trials (CENTRAL) via Cochrane Library; Latin American and Caribbean Literature on Health Sciences (LILACS) through the Portal of the Virtual Health Library and Physiotherapy Evidence Database (PEDro) for all randomised-controlled trials published before July 2022. The randomised-controlled trials were assessed for risk of bias and certainty of evidence. Thirteen randomised-controlled trials were included. All studies had an overall high risk of bias. Inspiratory muscle training probably improves systolic blood pressure and sleepiness when compared with sham. However, inspiratory muscle training probably does not improve diastolic blood pressure and maximum expiratory pressure, and may not be superior to sham for apnea-hypopnea index, forced expiratory volume in 1 s, forced vital capacity, sleep quality and quality of life. In addition, it is uncertain whether there is any effect of inspiratory muscle training on maximum inspiratory pressure and physical capacity. Inspiratory muscle training may also improve maximum inspiratory pressure and maximum expiratory pressure compared with oropharyngeal exercises. However, it may not be superior for apnea-hypopnea index, sleep quality, sleepiness, quality of life and functional capacity. When associated with physical exercise, inspiratory muscle training may not be superior to physical exercise alone for maximum inspiratory pressure, maximum expiratory pressure, systolic and diastolic blood pressure, and functional capacity. At the same time, when associated with cardiac rehabilitation exercises, inspiratory muscle training may reduce apnea-hypopnea index, improve inspiratory muscle strength, sleepiness and sleep quality compared with cardiac rehabilitation alone. However, it may not be superior for improving quality of life. Regarding expiratory muscle training, it may improve expiratory muscle strength and sleep quality, but not sleepiness when compared with sham. The evidence on the effects of expiratory muscle training in apnea-hypopnea index is very uncertain.
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Affiliation(s)
- André Silva de Sousa
- Programa de Pós- Graduação em Saúde Baseada em Evidências, Universidad Federal de São Paulo, São Paulo, Brazil
| | - Aline Pereira da Rocha
- Programa de Pós- Graduação em Saúde Baseada em Evidências, Universidad Federal de São Paulo, São Paulo, Brazil
| | | | - Jane Érika Frazão Okazaki
- Programa de Pós- Graduação em Saúde Baseada em Evidências, Universidad Federal de São Paulo, São Paulo, Brazil
| | | | - Virgínia Fernandes Moça Trevisani
- Programa de Pós- Graduação em Saúde Baseada em Evidências, Universidad Federal de São Paulo, São Paulo, Brazil
- Universidade de Santo Amaro, São Paulo, Brazil
| | - Ana Carolina Pereira Nunes Pinto
- Programa de Pós- Graduação em Saúde Baseada em Evidências, Universidad Federal de São Paulo, São Paulo, Brazil
- Universidade Federal do Amapá, Macapá, Brazil
- Iberoamerican Cochrane Centre - Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
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de Oliveira Vaz L, Galvão AP, Nunes DLM, de Almeida JC, de Fátima Garcia Diniz J, Oliveira-Filho J. Effects of inspiratory muscle training on the severity of obstructive sleep apnea in individuals after stroke: a protocol for a randomized controlled trial. Sleep Breath 2023; 27:2257-2263. [PMID: 37103682 DOI: 10.1007/s11325-023-02825-0] [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: 08/29/2022] [Revised: 03/12/2023] [Accepted: 04/03/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is the most common form of sleep-disordered breathing in cerebrovascular diseases, requiring a multidisciplinary approach. There are few studies evaluating the effects of inspiratory muscle training (IMT) in individuals with OSA and the findings regarding the possible effect on apnea hypopnea index (AHI) reduction are controversial. OBJECTIVE This protocol for a randomized clinical trial will assess the effects of IMT on the severity of obstructive sleep apnea, sleep quality, and daytime sleepiness in individuals after stroke participating in a rehabilitation program. METHODS This study will be a randomized controlled trial with blinded assessors. Forty individuals after stroke will randomized to two groups. For 5 weeks, both groups will participate in the rehabilitation program activities, including aerobic exercise, resistance training, and educational class when they will receive guidance on the behavioral management of OSA. The experimental group will also perform high-intensity IMT 5 times a week, for 5 weeks, consisting initially of five sets of five repetitions achieving 75% of the maximal inspiratory pressure, increasing one set each week, totaling nine sets at the end of training. The primary outcome will be the severity of OSA measured as AHI at 5 weeks. Secondary outcomes will include sleep quality measured by the Pittsburgh Sleep Quality Index (PSQI) and daytime sleepiness measured by Epworth Sleepiness Scale (ESS). Outcomes will be collected by a researcher blinded to group allocation at baseline (week 0), after intervention (week 5), and 1 month beyond intervention (week 9). TRIAL REGISTRATION Clinical Trials Register: NCT05135494.
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Affiliation(s)
- Lorena de Oliveira Vaz
- The SARAH Network of Rehabilitation Hospitals, Av Tancredo Neves 2782, Salvador, Bahia, 41820900, Brazil.
- Post-Graduation Program in Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil.
| | - Ana Paula Galvão
- The SARAH Network of Rehabilitation Hospitals, Av Tancredo Neves 2782, Salvador, Bahia, 41820900, Brazil
| | - Daniela Lino Macedo Nunes
- The SARAH Network of Rehabilitation Hospitals, Av Tancredo Neves 2782, Salvador, Bahia, 41820900, Brazil
| | | | | | - Jamary Oliveira-Filho
- Post-Graduation Program in Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
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Chen TA, Mao ST, Lin HC, Liu WT, Tam KW, Tsai CY, Kuan YC. Effects of inspiratory muscle training on blood pressure- and sleep-related outcomes in patients with obstructive sleep apnea: a meta-analysis of randomized controlled trials. Sleep Breath 2023; 27:1953-1966. [PMID: 36576599 DOI: 10.1007/s11325-022-02773-1] [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: 08/29/2022] [Revised: 12/03/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is frequently accompanied by hypertension, resulting in cardiovascular comorbidities. Continuous positive airway pressure is a standard therapy for OSA but has poor adherence. Inspiratory muscle training (IMT) may reduce airway collapsibility and sympathetic output, which may decrease OSA severity and blood pressure. In this meta-analysis of randomized controlled trials (RCTs), we evaluated the efficacy of IMT in patients with OSA. METHODS We searched PubMed, EMBASE, Cochrane Library, Web of Science, and ClinicalTrials.gov databases for relevant RCTs published before November 2022. RESULTS Seven RCTs with a total of 160 patients with OSA were included. Compared with the control group, the IMT group exhibited significantly lower systolic and diastolic blood pressure (mean difference [MD]: - 10.77 and - 4.58 mmHg, respectively), plasma catecholamine levels (MD: - 128.64 pg/mL), Pittsburgh Sleep Quality Index (MD: - 3.06), and Epworth Sleepiness Scale score (MD: - 4.37). No significant between-group differences were observed in the apnea-hypopnea index, forced vital capacity (FVC), ratio of forced expiratory volume in 1 s to FVC, or adverse effects. The data indicate comprehensive evidence regarding the efficacy of IMT for OSA. However, the level of certainty (LOC) remains low. CONCLUSION IMT improved blood pressure- and sleep-related outcomes without causing adverse effects and may thus be a reasonable option for lowering blood pressure in patients with OSA. However, additional studies with larger sample sizes and rigorous study designs are warranted to increase the LOC.
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Affiliation(s)
- Tzu-Ang Chen
- Department of General Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Sheng-Ting Mao
- Department of Obstetrics and Gynecology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Huei-Chen Lin
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
- Department of Long-Term Care, College of Health Technology, National Taipei University of Nursing and Health Sciences, Taipei City, Taiwan
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei City, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Ka-Wai Tam
- Center for Evidence-Based Health Care, Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Shared Decision Making Resource Center, Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Cochrane Taiwan, Taipei Medical University, Taipei City, Taiwan
- Division of General Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan
- Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Cheng-Yu Tsai
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
- Center for Evidence-Based Health Care, Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
- Cochrane Taiwan, Taipei Medical University, Taipei City, Taiwan.
- Taipei Neuroscience Institute, Taipei Medical University, Taipei City, Taiwan.
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, 291 Zhongzheng Road, Zhonghe District, New Taipei City, 23561, Taiwan.
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City, Taiwan.
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei City, Taiwan.
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Hao Y, Liu S, Liu T, Huang X, Xie M, Wang D. Pulmonary Function Test and Obstructive Sleep Apnea Hypopnea Syndrome in Obese Adults: A Retrospective Study. Int J Chron Obstruct Pulmon Dis 2023; 18:1019-1030. [PMID: 37304766 PMCID: PMC10253010 DOI: 10.2147/copd.s409383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 05/28/2023] [Indexed: 06/13/2023] Open
Abstract
Objective We explore risk factors related to severe obstructive sleep apnea (OSA) in obese patients, including pulmonary ventilation function, diffusion function, and impulse oscillometry (IOS) data. Methods The medical records of 207 obese patients who were prepared to undergo bariatric surgery in a hospital from May 2020 to September 2021 were retrospectively reviewed. Polysomnography (PSG), pulmonary ventilation function, diffusion function, and IOS parameters were collected according to the ethical standards of the institutional research committee (registration number: KYLL-202008-144). Logistic regression analysis was used to analyze the related independent risk factors. Results There were significantly statistical difference in a number of pulmonary ventilation and diffusion function parameters among the non-OSAHS group, the mild-to-moderate OSA group, and the severe OSA group. However, only airway resistance parameters R5%, R10%, R15%, R20%, R25%, and R35% increased with increasing OSA severity and were positively correlated with apnea hypopnea index (AHI). Age (P = 0.012, 1.104 (1.022, 1.192)), body mass index (P< 0.0001, 1.12 (1.057, 1.187)), gender (P = 0.003, 4.129 (1.625, 10.49)), and R25% (P = 0.007, 1.018 (1.005, 1.031)) were independent risk factors for severe OSA. In patients aged 35 to 60, RV/TLC (P = 0.029, 1.272 (1.025, 1.577)) is an independent risk factor for severe OSA. Conclusion R25% was an independent risk factor for severe OSA in obese individuals, while RV/TLC was also an independent risk factor in those aged 35 to 60. Pulmonary function tests (PFTs), particularly IOS levels, are recommended to assess severe OSA in obese patients.
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Affiliation(s)
- Yijia Hao
- Cheeloo College of Medicine, Shandong University, Jinan, 250033, People’s Republic of China
| | - Shaozhuang Liu
- Division of Bariatric and Metabolic Surgery, Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Teng Liu
- Division of Bariatric and Metabolic Surgery, Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Xin Huang
- Division of Bariatric and Metabolic Surgery, Department of General Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Mengshuang Xie
- Department of Geriatrics & Key Laboratory of Cardiovascular Proteomics of Shandong Province, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
| | - Dexiang Wang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250012, People’s Republic of China
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de Azeredo L, de Souza L, Guimarães B, Puga F, Behrens N, Lugon J. Inspiratory muscle training as adjuvant therapy in obstructive sleep apnea: a randomized controlled trial. Braz J Med Biol Res 2022; 55:e12331. [PMID: 36197415 PMCID: PMC9529044 DOI: 10.1590/1414-431x2022e12331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/19/2022] [Indexed: 11/22/2022] Open
Abstract
The aim of this randomized controlled trial was to analyze the effects of an inspiratory muscle training (IMT) program on apnea and hypopnea index (AHI), inspiratory muscle strength, sleep quality, and daytime sleepiness in individuals with obstructive sleep apnea (OSA), whether or not they used continuous positive airway pressure (CPAP (+/−) therapy. The intervention group underwent IMT with a progressive resistive load of 40-70% of the maximum inspiratory pressure (PImax) for 30 breaths once a day for 12 weeks. The control group was submitted to a similar protocol, but with at a minimum load of 10 cmH2O. Changes in the AHI were the primary outcome. PImax was measured with a digital vacuometer, daytime somnolence was measured by the Epworth sleepiness scale (ESS), and the quality of sleep by the Pittsburgh Sleep Quality Index (PSQI). CPAP use was treated as a confounder and controlled by stratification resulting in 4 subgroups: IMT−/CPAP−, IMT−/CPAP+, IMT+/CPAP−, and IMT+/CPAP+. Sixty-five individuals were included in the final analysis. Significant variations were found in the 4 parameters measured throughout the study after the intervention in both CPAP− and CPAP+ participants: PImax was increased and AHI was reduced, whereas improvements were seen in both ESS and PSQI. The twelve-week IMT program increased inspiratory muscle strength, substantially reduced AHI, and had a positive impact on sleep quality and daytime sleepiness, whether or not participants were using CPAP. Our findings reinforce the role of an IMT program as an adjunct resource in OSA treatment.
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Affiliation(s)
- L.M. de Azeredo
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, RJ, Brasil
| | - L.C. de Souza
- Faculdade de Fisioterapia, Universidade Estácio de Sá, Niterói, RJ, Brasil
| | - B.L.S. Guimarães
- Programa de Pós-Graduação em Ciências Médicas, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, RJ, Brasil,Hospital Naval Marcílio Dias, Rio de Janeiro, RJ, Brasil
| | - F.P. Puga
- Hospital Naval Marcílio Dias, Rio de Janeiro, RJ, Brasil
| | | | - J.R. Lugon
- Divisão de Nefrologia, Departamento de Medicina, Faculdade de Medicina, Universidade Federal Fluminense, Niterói, RJ, Brasil
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Transoral awake state neuromuscular electrical stimulation therapy for mild obstructive sleep apnea. Sleep Breath 2022; 27:527-534. [DOI: 10.1007/s11325-022-02644-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/07/2022] [Accepted: 05/17/2022] [Indexed: 11/27/2022]
Abstract
Abstract
Introduction
Obstructive sleep apnea (OSA) is a common disorder with major neurocognitive and cardiovascular sequelae. The treatment of symptomatic patients with mild OSA remains controversial given that adherence to positive airway pressure (PAP) has historically been suboptimal. With this notion in mind, we assessed a daily transoral neuromuscular electrical stimulation (NMES) device for individuals with mild OSA.
Methods
The sample represents a subset of participants with a baseline AHI 5–14.9 events/hour, drawn from a parent study which also included participants with primary snoring. Outcome measures for the current study included changes in apnea-hypopnea index (AHI), Epworth Sleepiness Scale (ESS), Pittsburgh Sleep Quality Index (PSQI) and snoring levels before and after use of the NMES.
Results
Among 65 participants (68% men) with median age of 49 years (range 24 to 79) and median BMI of 27.7 kg/m2 (range 20 to 34), the NMES device was used daily for 6 weeks. We observed a significant improvement in the AHI from 10.2 to 6.8 events/hour among all participants and from 10.4 to 5.0 events/h among responders. Statistically significant improvements in the ESS, PSQI, objectively measured snoring, and bed partner-reported snoring were observed. Adherence among all participants was 85%.
Discussion
This NMES device has the benefit of being a treatment modality of daytime therapy which confers a high level of tolerability and patient acceptance. It alleviates the need for an in situ device during sleep and leads to improvements in OSA severity, snoring, and subjective sleep metrics, potentially crucial in mild OSA. Further studies are needed to define which individuals may benefit most from the device across the wider spectrum of OSA severity and assess long-term therapeutic outcomes.
Trial registration
ClinicalTrials.gov Identifier: NCT03829956.
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Respiratory Muscle Training in Patients with Obstructive Sleep Apnoea: A Systematic Review and Meta-Analysis. Clocks Sleep 2022; 4:219-229. [PMID: 35466271 PMCID: PMC9036269 DOI: 10.3390/clockssleep4020020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/03/2022] [Accepted: 04/07/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Effective treatments for obstructive sleep apnoea (OSA) include positive pressure, weight loss, oral appliances, surgery, and exercise. Although the involvement of the respiratory muscles in OSA is evident, the effect of training them to improve clinical outcomes is not clear. We aimed to determine the effects of respiratory muscle training in patients with OSA. Methods: A systematic review was conducted in seven databases. Studies that applied respiratory muscle training in OSA patients were reviewed. Two independent reviewers analysed the studies, extracted the data and assessed the quality of evidence. Results: Of the 405 reports returned by the initial search, eight articles reporting on 210 patients were included in the data synthesis. Seven included inspiratory muscle training (IMT), and one included expiratory muscle training (EMT). Regarding IMT, we found significant improvement in Epworth sleepiness scale in −4.45 points (95%CI −7.64 to −1.27 points, p = 0.006), in Pittsburgh sleep quality index of −2.79 points (95%CI −4.19 to −1.39 points, p < 0.0001), and maximum inspiratory pressure of −29.56 cmH2O (95%CI −53.14 to −5.98 cmH2O, p = 0.01). However, the apnoea/hypopnea index and physical capacity did not show changes. We did not perform a meta-analysis of EMT due to insufficient studies. Conclusion: IMT improves sleepiness, sleep quality and inspiratory strength in patients with OSA.
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