Physiological Responses to the 6-min Step Test in Patients With Chronic Obstructive Pulmonary Disease

IntroductionCompared with healthy older adults, people with chronic obstructive pulmonary disease (COPD) have reduced capacity and increased symptoms during leg and arm activities. While the mechanisms underlying limitations and symptoms during leg activities have been investigated in detail, limitations and symptoms during arm activities are not well understood, and the potential differences between physiological responses of leg and arm activities have not been systematically synthesised. Determining physiological responses and symptoms of arm activities compared with physiological responses and symptoms of leg activities will help us understand the mechanisms behind the difficulties that people with COPD experience when performing physical activities, and determine how exercise training should be prescribed. Thus, the aim of this systematic review is to compare the physiological responses and symptoms during activities involving the arms relative to activities involving the legs in people diagnosed with COPD.Methods and analysesThis protocol is reported in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols. Potentially relevant studies will be identified from CINAHL, EMBASE, PEDro, Cochrane Central Register of Controlled Trials and PubMed databases. The Population, Exposure, Comparator, Outcomes, and Study characteristics framework will be used to systematise the process of selecting and extracting data from relevant studies. Assessment of the methodological quality of the studies will be done by using the 14 most relevant components from the checklist by Downs and Black. The result will be presented with a narrative synthesis, and if appropriate with meta-analyses.Ethics and disseminationEthical approval is not required as this study is a systematic review. It is our intention to submit the results of our review for peer-reviewed publication.PROSPERO registration numberCRD42017074476.

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Physiological responses of incremental and endurance shuttle walk tests in patients with chronic obstructive pulmonary disease (COPD): narrative review

European Journal of Physiotherapy ◽

10.1080/21679169.2020.1754463 ◽

2020 ◽

pp. 1-6

Author(s):

Gabriely Azevêdo Gonçalo Silva ◽

Juliana Simonelly Felix dos Santos ◽

Diego de Souza Dantas ◽

Ana Tereza do Nascimento Sales Figu Fernandes ◽

Íllia Nadinne Dantas Florentino Lima

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Pulmonary Disease ◽

Physiological Responses ◽

Narrative Review ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease ◽

Walk Tests

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Validity of the six-minute step test of free cadence in patients with chronic obstructive pulmonary disease

Brazilian Journal of Physical Therapy ◽

10.1590/bjpt-rbf.2014.0041 ◽

2014 ◽

Vol 18 (3) ◽

pp. 228-236 ◽

Cited By ~ 22

Author(s):

Bruna V. Pessoa ◽

Juliano F. Arcuri ◽

Ivana G. Labadessa ◽

Joyce N. F. Costa ◽

Anna C. Sentanin ◽

...

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Pulmonary Disease ◽

Step Test ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease

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The influence of body composition assessed by dual-energy x-ray absorptiometry on functional capacity of patients with chronic obstructive pulmonary disease

Fisioterapia em Movimento ◽

10.1590/s0103-51502013000100008 ◽

2013 ◽

Vol 26 (1) ◽

pp. 71-78

Author(s):

Gualberto Ruas ◽

Gabriel Gomes Ribeiro ◽

Juliane Moreira Naves ◽

Mauricio Jamami

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Body Composition ◽

Pulmonary Disease ◽

Functional Capacity ◽

Lower Limb ◽

Dual Energy ◽

Step Test ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease ◽

X Ray

INTRODUCTION: The individual with chronic obstructive pulmonary disease (COPD) can experience a significant reduction of body composition, peripheral muscle dysfunction, resulting in a negative influence on functional capacity. OBJECTIVES: To analyze the influence of body composition assessed by dual-energy x-ray absorptiometry on functional capacity of patients with chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Eleven male patients with COPD (COPDG), seven presenting moderate obstruction and four severe, and 11 sedentary male subjects (CG) were evaluated by dual-energy x-ray absorptiometry to assess their body composition. All subjects also performed the 6-minute walk test (6MWT) and Step Test (6MST) to assess their functional capacity. RESULTS: No significant differences were found between groups for anthropometric data such as age, weight, height and body mass index (BMI). However, the COPDG presented Forced Vital Capacity (FVC), Forced Expiratory Volume in one second (FEV1), FEV1/FVC ratio, Maximal Voluntary Ventilation (MVV), Walked Distance (WD) and Number of Steps (NS) significantly lower than the CG (p < 0.05, Student's t-test). The Body Bone Mass (BBM), BBM%, Lean Mass (LM), LM%, and Right Lower Limb (RLL) and Left Lower Limb (LLL) were significantly lower in the COPDG when compared with the CG, presenting statistically significant positive correlations with 6MWT's WD and 6MST's NS (p < 0.05, Pearson's test). CONCLUSION: We conclude that body composition is an important prognostic factor for patients with COPD, which reinforces the importance of assessing body composition by dual-energy absorptiometry since it has demonstrated with satisfactory accuracy in clinical practice. Moreover, it is a useful parameter for evaluation and reassessment in pulmonary rehabilitation programs.

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