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Inspiratory muscles

Elaine Cristina de Campos, Fabiana Sobral Peixoto-Souza, Viviane Cristina Alves, Renata Basso-Vanelli, Marcela Barbalho-Moulim, Rafael Melillo Laurino-Neto, Dirceu Costa
OBJECTIVE: To determine whether weight loss in women with morbid obesity subjected to bariatric surgery alters lung function, respiratory muscle strength, functional capacity and the level of habitual physical activity and to investigate the relationship between these variables and changes in both body composition and anthropometrics. METHODS: Twenty-four women with morbid obesity were evaluated with regard to lung function, respiratory muscle strength, functional capacity, body composition, anthropometrics and the level of habitual physical activity two weeks prior to and six months after bariatric surgery...
March 15, 2018: Clinics
Patricia Palau, Eloy Domínguez, Laura López, José María Ramón, Raquel Heredia, Jessika González, Enrique Santas, Vicent Bodí, Gema Miñana, Ernesto Valero, Anna Mollar, Vicente Bertomeu González, Francisco J Chorro, Juan Sanchis, Josep Lupón, Antoni Bayés-Genís, Julio Núñez
INTRODUCTION AND OBJECTIVES: Despite the prevalence of heart failure with preserved ejection fraction (HFpEF), there is currently no evidence-based effective therapy for this disease. This study sought to evaluate whether inspiratory muscle training (IMT), functional electrical stimulation (FES), or a combination of both (IMT + FES) improves 12- and 24-week exercise capacity as well as left ventricular diastolic function, biomarker profile, and quality of life in HFpEF. METHODS: A total of 61 stable symptomatic patients (New York Heart Association II-III) with HFpEF were randomized (1:1:1:1) to receive a 12-week program of IMT, FES, or IMT + FES vs usual care...
March 15, 2018: Revista Española de Cardiología
Gabriel Dias Rodrigues, Jonas Lírio Gurgel, Thiago Rodrigues Gonçalves, Pedro Paulo da Silva Soares
PURPOSE: Aging impairs the autonomic balance reducing the vagal and increasing the sympathetic components of heart rate variability (HRV) and this could be associated with a decline in physical capacity. Inspiratory muscle training (IMT) is a possible tool to attenuate this physical capacity decline in older women. The aim of this study was to investigate the influence of IMT in the older women on physical capacity and autonomic cardiac modulation at rest and post exercise. METHODS: 20 female participants 60-72 years old were randomly allocated in two groups...
March 16, 2018: European Journal of Applied Physiology
Daniel Langer, Casey E Ciavaglia, Azmy Faisal, Katherine A Webb, J Alberto Neder, Rik Gosselink, Sauwaluk Dacha, Marko Topalovic, Anna Ivanova, Denis E O'Donnell
Among patients with COPD, those with the lowest maximal inspiratory pressures experience greater breathing discomfort (dyspnea) during exercise. In such individuals, inspiratory muscle training (IMT) may be associated with improvement of dyspnea but the mechanisms for this are poorly understood. Therefore, we aimed to identify physiological mechanisms of improvement in dyspnea and exercise endurance following inspiratory muscle training (IMT) in patients with COPD and low maximal inspiratory pressure (Pi,max)...
March 15, 2018: Journal of Applied Physiology
Maria Kerti, Zsuzsanna Balogh, Krisztina Kelemen, Janos T Varga
Rationale: The relationship of functional parameters such as lung mechanics, chest kinematics, metabolism and peripheral and respiratory muscle function with the level of exercise tolerance remains a controversial subject. While it has been previously shown that pulmonary rehabilitation is capable of improving exercise tolerance in patients afflicted by COPD, as expressed by values of 6-minute walking test (6MWT), the degree of contribution to this change by each of the aforementioned parameters remains unclear...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Enya Daynes, Neil J Greening, Theresa C Harvey-Dunstan, Sally J Singh
BACKGROUND: COPD is characterized by expiratory flow limitation, which results in symptomatic dyspnea and reduced exercise capacity. Changes in breathing mechanics mean the respiratory muscles are unable to respond to the ventilatory demands, increasing the sensation of dyspnea. A high-frequency oscillating device has been developed to improve dyspnea in patients with COPD. We conducted a feasibility trial to gain insight into the potential for recruitment, retention, and study design for a future randomized controlled trial...
March 13, 2018: Respiratory Care
Musetta C Fu, Basia Belza, Huong Nguyen, Rebecca Logsdon, Steven Demorest
PURPOSE: Participating in a group-singing program may be beneficial to healthy aging through engaging in active music-making activities and breathing exercises. The purpose of this study was to assess the feasibility, acceptability, and impact of a 12-week group singing program on cognitive function, lung health and quality of life (QoL) of older adults. MATERIALS AND METHODS: A pre and post-test quasi-experimental design evaluated the impact of a group-singing program on older adult health...
February 23, 2018: Archives of Gerontology and Geriatrics
Emil Osman Thybo Karanfil, Ann Merete Møller
INTRODUCTION: Post-operative pulmonary complications are a common cause of morbidity and mortality in patients undergoing heart surgery. The aim of this systematic review was to determine if preoperative inspiratory muscle training could prevent the development of pneumonia and atelectasis in patients undergoing coronary artery bypass grafting (CABG) or heart valve surgery. METHODS: Systematic searches were performed in MEDLINE, Embase and the Cochrane Library. The included studies compared the development of pneumonia and atelectasis in CABG patients or heart valve surgery patients who were prescribed either preoperative inspiratory muscle training or usual care...
March 2018: Danish Medical Journal
Anne Flavia Silva Galindo Santana, Pedro Caruso, Pauliane Vieira Santana, Gislaine Cristina Lopes Machado Porto, Luiz Paulo Kowalski, Jose Guilherme Vartanian
BACKGROUND: Inspiratory strength after a neck dissection has not been evaluated, and diaphragm function has not been adequately evaluated. OBJECTIVE: Evaluate diaphragm mobility and inspiratory strength after neck dissection. METHODS: Prospective data collection of a consecutive series of adult patients submitted to neck dissection for head and neck cancer treatment, in a tertiary referral cancer center, from January to September 2014, with 30 days of follow-up...
March 5, 2018: European Archives of Oto-rhino-laryngology
Antonello Nicolini, Bruna Grecchi, Maura Ferrari-Bravo, Cornelius Barlascini
Purpose: Chest physiotherapy is an important tool in the treatment of COPD. Intrapulmonary percussive ventilation (IPV) and high-frequency chest wall oscillation (HFCWO) are techniques designed to create a global percussion of the lung which removes secretions and probably clears the peripheral bronchial tree. We tested the hypothesis that adding IPV or HFCWO to the best pharmacological therapy (PT) may provide additional clinical benefit over chest physiotherapy in patients with severe COPD...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Shu Zhang, Qian-Qian Mei, Jing Xin, Hong-Ying Zhang, Shi-Wen Wu, Chun-Feng Liu
OBJECTIVE: Progressive weakness of respiratory muscles remains one of the leading causes of death among patients with Duchenne muscular dystrophy (DMD). Currently, there are few pulmonary function data among Chinese DMD patients. This study was carried out to evaluate the sniff nasal inspiratory pressure (SNIP) change among a group of Chinese DMD patients, and compare it with the SNIP value of patients with neuromuscular disorders in other countries. METHODS: SNIP data were collected in three research groups that consists of 581 subjects: 125 DMD boys who have taken steroid (Age 5...
February 21, 2018: Brain & Development
Z Kotmanova, M Simera, M Veternik, L Martvon, J Misek, J Jakus, T Y Shen, M N Musselwhite, T Pitts, D C Bolser, I Poliacek
GABA, muscimol, and baclofen were microinjected into the rostral (rNTS) and caudal solitary tract nucleus (cNTS) in 24 anesthetized cats. Electromyograms (EMGs) of diaphragm (DIA) and abdominal muscles (ABD), blood pressure and esophageal pressure (EP) were recorded and analysed. Bilateral microinjections of 1 mM GABA (total 66 ± 4 nl), 1 mM baclofen (64 ± 4 nl) and unilateral microinjections of 0.5 mM muscimol (33 ± 1 nl) in the rNTS significantly reduced cough number (CN), amplitudes of ABD EMGs, expiratory EP, and prolonged the duration of the cough inspiratory phase...
February 20, 2018: Respiratory Physiology & Neurobiology
Iacopo Cappellini, Fabio Picciafuochi, Daniele Ostento, Ginevra Danti, Angelo Raffaele De Gaudio, Chiara Adembri
BACKGROUND: The extensive use of neuromuscular blocking agents (NMBAs) during surgical procedures still leads to potential residual paralyzing effects in the postoperative period. Indeed, neuromuscular monitoring in an intra-operative setting is strongly advocated. Acetylcholinesterase inhibitors can reverse muscle block, but their short half-life may lead to residual curarization in the ward, especially when intermediate or long-acting NMBAs have been administered. Sugammadex is the first selective reversal drug for steroidal NMBAs; it has been shown to give full and rapid recovery of muscle strength, thus minimizing the occurrence of residual curarization...
February 21, 2018: Trials
Andreas Asimakos, Dimitrios Toumpanakis, Maria-Helena Karatza, Spyridoula Vasileiou, Paraskevi Katsaounou, Zafeiria Mastora, Theodoros Vassilakopoulos
Background/hypothesis: Whole body exercise (WBE) changes lymphocyte subset percentages in peripheral blood. Resistive breathing, a hallmark of diseases of airway obstruction, is a form of exercise for the inspiratory muscles. Strenuous muscle contractions induce oxidative stress that may mediate immune alterations following exercise. We hypothesized that inspiratory resistive breathing (IRB) alters peripheral blood lymphocyte subsets and that oxidative stress mediates lymphocyte subpopulation alterations following both WBE and IRB...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Sulenur Yildiz, Deniz Inal-Ince, Ebru Calik-Kutukcu, Naciye Vardar-Yagli, Melda Saglam, Hulya Arikan, Lutfi Coplu
INTRODUCTION: Exercise capacity is impaired in patients with bronchiectasis. Incremental shuttle walk test (ISWT) stresses cardiorespiratory system physiologically to symptom-limited maximal exercise capacity. The purpose of this study was to investigate the clinical determinants of ISWT in adults with non-cystic fibrosis (CF) bronchiectasis. METHODS: Forty-one clinically stable bronchiectasis patients aged 18-72 years (27 females, 14 males) participated in the study...
February 12, 2018: Lung
Maria À Cebrià I Iranzo, Mercè Balasch I Bernat, María Á Tortosa-Chuliá, Sebastià Balasch-Parisi
This study compares the effects of two resistance training programs in peripheral and respiratory musculature on muscle mass and strength and physical performance, and identify the appropriate muscle mass parameter for assessing the intervention effects. Thirty-seven institutionalized older Spanish adults with sarcopenia were analyzed: Control Group (n=17), Respiratory Muscle Training Group (n=9) and Peripheral Muscle Training Group (n=11). Pre and post-intervention, participants were assessed for Appendicular Skeletal Mass (ASM/height2; ASM/weight; ASM/BMI), isometric knee-extension, arm-flexion and handgrip strength, Inspiratory and Expiratory Maximal Pressures (MIP and MEP), and gait speed...
February 12, 2018: Journal of Aging and Physical Activity
Cong He, Shan Ren, Quansheng Du, Yong Wang, Hui Liu, Heling Zhao, Limin Shen, Ling Long, Xianlei Wang
Context • Global morbidity from chronic obstructive pulmonary disease (COPD) is high worldwide. Diaphragm pacing (DP) can maintain the natural, negative pressure breathing of COPD patients with diaphragmatic muscle dysfunction. The YiqiDitanTongfu (YDTF) decoction has been used clinically with COPD patients to help them to wean from mechanical ventilation, with their ventilation functions being improved and the success rate of weaning being largely increased. Objective • The study intended to investigate the combined therapeutic effects of external DP and the YDTF decoction for COPD patients who have had difficulty weaning from mechanical ventilation...
February 10, 2018: Alternative Therapies in Health and Medicine
Ren-Jay Shei, Robert F Chapman, Allison H Gruber, Timothy D Mickleborough
Thoracic load carriage (LC) exercise impairs exercise performance compared to unloaded exercise, partially due to impaired respiratory mechanics. We investigated the effects of LC on exercise and diaphragmatic fatigue in a constant-load exercise task; and whether inspiratory muscle training (IMT) improved exercise capacity and diaphragmatic fatigue with LC. Twelve recreationally active males completed three separate running trials to exhaustion (Tlim ) at a fixed speed eliciting 70% of their V˙O2max . The first two trials were completed either unloaded (UL) or while carrying a 10 kg backpack (LC)...
February 2018: Physiological Reports
Jing Wu, Li Kuang, Lijuan Fu
OBJECTIVE: The aim of this study was to evaluate the effects of inspiratory muscle training (IMT) in chronic heart failure (CHF) patients. DESIGN: We searched MEDLINE, EMBASE, Cochrane Library, CINHAL, and CBMdisc to collect controlled trials on the application of inspiratory muscle training in CHF patients from the establishment of these databases to November 2016. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data, and assessed the quality of literature...
February 8, 2018: Congenital Heart Disease
Paulo A F Magalhães, Carlos A Camillo, Daniel Langer, Lívia B Andrade, Maria do Carmo M B Duarte, Rik Gosselink
INTRODUCTION: Respiratory muscle dysfunction, being a common cause of weaning failure, is strongly associated with prolonged mechanical ventilation (MV) and prolonged stay in intensive care units. Inspiratory muscle training (IMT) has been described as an important contributor to the treatment of respiratory muscle dysfunction in critically ill patients. Its effectiveness is however yet controversial. OBJECTIVE: To discuss evidence for assessment of readiness and the effectiveness of interventions for liberation from MV, with special attention to the role of IMT...
January 2018: Respiratory Medicine
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