Effects of exercise on secretion transport, inflammation, and quality of life in patients with noncystic fibrosis bronchiectasis: Protocol for a randomized controlled trial.

BACKGROUND: Bronchiectasis is characterized by pathological and irreversible bronchial dilatation caused by the inefficient mucus and microorganism clearance and progression of inflammatory processes. The most frequent characteristic is the increase in bronchial mucus production resulting in slower transport and damage to the mucociliary transport. AIMS: To evaluate the effects of exercise on mucus transport, inflammation, and resistance of the respiratory and autonomic nervous systems and subsequent effects on quality of life in patients with bronchiectasis who are enrolled in a pulmonary rehabilitation program. METHODS: Sixty subjects of both sexes between 18 and 60 years (30 volunteers with clinically stable bronchiectasis and 30 healthy volunteers) will be included. Participants with chronic obstructive pulmonary disease, decompensated cardiovascular or metabolic diseases, neuromuscular and musculoskeletal diseases, and active smokers will be excluded. Volunteers will be randomly allocated to the pulmonary rehabilitation or control groups. The primary outcomes will be nasal transport time as evaluated by nasal saccharin transport time, analysis of nasal lavage, enzyme immunoassay of exhaled expiration, and analysis of the mucus properties. The secondary outcomes will include pulmonary function tests, impulse oscillometry, heart rate variability analysis, and quality of life questionnaires. DISCUSSION: In addition to the benefits for patients already described in the literature, the additional benefit of mucus removal may contribute to optimizing treatments and better control of the disease. CONCLUSION: This protocol could provide new information about the unclear mechanisms regarding exercise to aid in the removal of secretions.

Incremental Shuttle Walk Test to Assess and Prescribe Exercise for Subjects With Bronchiectasis: Hallway Versus Treadmill.

INTRODUCTION: The incremental shuttle walk test was initially developed to be carried out in a hallway (ISWT-H) but has been modified to be performed on a treadmill (ISWT-T). However, it is still unknown whether performance on ISWT-H and ISWT-T are similar in patients with bronchiectasis. In this study, we compared the performance, physiological responses, and perception of effort between the ISWT-T with a handrail and ISWT-H for subjects with bronchiectasis. We also sought to estimate and compare the prescription for training intensity with both tests. METHODS: This was a cross-sectional study in which 24 subjects with bronchiectasis were evaluated on 2 different days (24 h apart). Distance walked (m) was compared between the ISWT-H and ISWT-T. A training session was held on a treadmill at 75% of the speed obtained from both tests. The walking distance, oxygen uptake (V̇O2 ), carbon dioxide production (V̇CO2 ), heart rate, and ventilation (V̇E) were measured. RESULTS: There was a difference in the walking distance between the ISWT-T and ISWT-H, but physiological responses for V̇O2 , V̇CO2 , heart rate, and V̇E were similar. However, the speed estimated for training was different, as were the V̇O2 , V̇CO2 , and heart rate. CONCLUSIONS: The ISWT-T with handrail and the ISWT-H are not interchangeable in subjects with bronchiectasis. A slower speed of training intensity may occur when the test is performed in a hallway, as originally described, and this may underestimate responses to aerobic training.

Incremental shuttle walking test: a reproducible and valid test to evaluate exercise tolerance in adults with noncystic fibrosis bronchiectasis.

OBJECTIVE: To analyze the reliability, validity, and determinants of the incremental shuttle walk test (ISWT) in adults with noncystic fibrosis bronchiectasis. DESIGN: Cross-sectional study. SETTING: Outpatient clinic. PARTICIPANTS: Subjects (N=75; 26 men) underwent, on different days, cardiopulmonary exercise testing (CPET) and 2 ISWTs, 30 minutes apart. The number of steps in daily life was recorded. Concurrent validity was tested by the relation between distance walked with peak load and oxygen consumption (V˙o2). INTERVENTIONS: None. MAIN OUTCOME MEASURES: Distance walked (m) was compared between the first and second ISWTs; greatest distance walked was correlated with peak load and Vo2peak obtained from CPET, steps per day, and dyspnea evaluated by the Medical Research Council (MRC) scale; and desaturation was compared between CPET and the ISWT. RESULTS: Distance walked was equivalent between the first ISWT (441±152m) and the second ISWT (445±153m) with an excellent intraclass correlation coefficient (.995; 95% confidence interval, .99-.997). There were significant correlations between distance walked and peak load (r=.82), V˙o2 (r=.72), steps per day (r=.61), and the MRC scale (r=-.69). Age, body mass index, sex, forced vital capacity (% predicted), dyspnea, and steps per day explained 70% of the variation in distance walked (m) and 60% of the variance when expressed as percent predicted. Higher desaturation was observed during the ISWT (-4%±4%) than cycling (-2±3%) (P<.001). CONCLUSIONS: The ISWT is reliable, represents functional capacity, and induces greater desaturation than cycling. Age, body composition, pulmonary function, dyspnea, and physical activity in daily life are determinants of the distance walked on the ISWT.

Physiotherapy and rehabilitative interventions in patients with chronic respiratory diseases: exercise and non-exercise treatment.

AIM: The aim of this literature review was to describe and discuss the available evidence about different modalities of physical therapy treatment and pulmonary rehabilitation (PR) involving exercise training in patients with chronic obstructive pulmonary disease (COPD), asthma, bronchiectasis and interstitial lung disease (ILD). METHODS: The search was performed by using the Cochrane Library and PubMed databases. We selected studies published between 2001 and 2012 which involved physiotherapy treatment and included patients with COPD, asthma, bronchiectasis or ILD, aged 18 years or more, in stable or unstable disease condition. RESULTS AND CONCLUSION: PR involving exercise training was effective in improving exercise capacity, muscle force, quality of life and reducing symptoms in patients with COPD and asthma. Although there are few studies published about exercise training in patients with bronchiectasis, improvement in exercise capacity and quality of life in those patients was also observed. Patients with ILD also respond to exercise training; however, the response is less pronounced than in COPD and they lose the gains more quickly. Non-exercise-based interventions, such as bronchial hygiene techniques and inspiratory muscle training, also present positive results when applied to patients with COPD, asthma and bronchiectasis. In some cases it is recommended that these interventions are combined with exercise training. Studies about non-exercise based interventions applied to patients with ILD are still necessary.

Bronquiectasia e fisioterapia desobstrutiva: ênfase em drenagem postural e percussão / Bronchiectasis and clearence physiotherapy: emphasis in postural drainage and percussion

Bronquiectasia consiste em dilatação anormal, permanente e irreversível de brônquios e bronquíolos, com infecções recorrentes, inflamações, hipersecreção e redução da limpeza mucociliar. Acomete predominantemente o sexo feminino, entre 28 e 48 anos de idade e afeta com maior freqüência os lobos inferiores bilateralmente. Manifestações clínicas da doença são a tosse crônica, febre e expectoração volumosa, purulenta, com odor fétido. Etiologia é inespecífica e representada pelo estádio final de diversos processos patológicos. Pode ser classificada em cilíndrica, varicosa e sacular, e ainda, em localizada e multissegmentar. Drenagem postural e percussão são técnicas desobstrutivas usuais na prática clínica diária, no entanto, há escassez de estudos comparativos enfatizando-as com amostras populacionais e recursos metodológicos. Tomando por base as considerações, teve-se como objetivo verificar a eficácia da drenagem postural e da percussão na higiene brônquica de pacientes bronquiectásicos, bem como seus efeitos e associação com outras técnicas apontadas pela literatura atual. Os principais achados comprovaram que a drenagem postural e a percussão são efetivas na mobilização da secreção pulmonar, uma vez que aumentam a velocidade do muco transportado, melhoram a função pulmonar e as trocas gasosas. A efetividade requer ajuda de um profissional, o que pode dificultar a prática clínica diária. Por esta razão, fisioterapeutas têm selecionado técnicas que propiciem independência ao paciente.

Bronchiectasis consists of abnormal, permanent and irreversible dilation of bronchi and bronchia, with recurrent infections, inflammation, hypersecretion and reduction of mucus clearance. It predominantly affects women of between 28 and 48 years old and more frequently affects the inferior lobes. Clinical manifestations are chronic cough, fever and voluminous expectoration, with a fetid odor. The etiology is unspecific and is considered the final stage of diverse pathological processes. It can be classified in cylindrical, varicose and cystic, and also in respect to located and whether it affects multiple segments. Postural drainage and chest clapping are commonly used clearence however, there are few published comparative population studies or reviews of techniques. In this context, this study aimed at evaluating the efficaciouness of postural drainage and chest clapping on bronchus clearence in bronchiectasis patients and to compare the effects and associations of these techniques with others reported in the literature. Recent research reported that postural drainage and chest clapping are effective therapies to mobilize pulmonary secretions as they increase the velocity of mucus transportion, improving pulmonary function and gas exchange. This requires the assistance of a professional, which can make the necessary daily treatment difficult. For this reason physiotherapists have been choosing techniques that give more independence to patients.

Efeitos da aplicaçäo das técnicas de limpeza brônquica associada a mobilizaçäo em pacientes portadores de bronquiectasia / Effects of respiratory care and thorax mobilization in bronchiectasis patients

A bronquiectasia e uma infeccao necrotizante dos bronquios e bronquiolos que causa e acompanha a dilatacao anormal dessas vias aereas. Manifesta-se clinicamente por tosse, febre e producao de grande volume de secrecao purulenta e fetida (ROBBINS). Este trabalho tem por objetivo verificar os efeitos da aplicacao das tecnicas de desobstrucao bronquica, associadas a mobilizacao do torax, aplicadas em sessao unica, na liberacao de secrecao, em pacientes portadores de bronquiectasia...

Cinesioterapia em piscina na bronquiectasia: discussäo acerca de uma nova abordagem terapêutica / Kinesiotherapy in swimming pool employed in bronchiectasia: discussion about a new therapeutic management

Os autores propoem, após uma revisao da conceituaçao básica referente à terapêutica da bronquiectasia, a utilizaçao da hidroterapia, em piscina aquecida, nessa síndrome. Para tanto, seis pacientes bronquiectásicos crônicos foram submetidos, durante 10 dias, a técnicas de cinesioterapia clássica associadas a uma proposta original de modificaçao de exercícios respiratórios em meio aquático. Os resultados foram avaliados, após cada sessao, através do volume de secreçao mucosa expectorada por cada paciente em sacos coletores e pela monitorizaçao da freqüência respiratória individual durante percurso de 3 minutos em terreno horizontal de 450 metros. Observou-se uma melhora no tônus muscular respiratório, da eliminaçao e do descolamento do muco endobrônquico e do controle da freqüência respiratória. O presente artigo procura expor uma abordagem fisioterápica complementar para a conduçao da paciente bronquiectásico crônico, sugerindo-se uma nova opçao na reabilitaçao respiratória.

Treinamento de autocuidados em pacientes portadores de bronquiectasia / Training of autocare in patients with bronchiectasis

Este trabalho mostra uma abordagem de treinamento de autocuidados e fisioterapia para sujeitos portadores de bronquiectasia nao sujeitos a cirurgia. A analise da eficacia deste programa foi demonstrada atraves de um controle de hidratacao, expectoracao e atividades fisioterapicas. Consideramos os resultados satisfatorios tanto a nivel comportamental quanto clinico-funcional.

Bronquiectasia

o presente trabalho tem como objetivo a revisão dos principais tópicos relativos à bronquiectasia,desde o conceito até o tratamento,enfocando etiologia,patogenia,tipos,manifestações clinicas,diagnóstico,tratamento,complicações e prognóstico