Physiological responses to the 6-min walk test in patients with chronic obstructive pulmonary disease

Troosters, Thierry; Vilaró, Jordi; Rabinovich, Roberto; Casas, Alejandro; Barberà, Joan Albert; Rodríguez-Roisín, Robert; Roca, Josep

doi:10.1183/09031936.02.02092001

Cited by 250 publications

(210 citation statements)

References 25 publications

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“…This is probably due to the differences between these two exercise modalities. In comparison with cycling, walking has been shown to be less fatiguing and to produce less lactate at similar V9O 2 levels [19][20][21]. Hence, patients are able to exercise for longer periods.…”

Section: Discussionmentioning

confidence: 99%

Cardiopulmonary stress during exercise training in patients with COPD

Probst¹

2006

European Respiratory Journal

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Exercise training is an essential component of pulmonary rehabilitation. However, the cardiopulmonary stress imposed during different modalities of exercise training is not yet known.In the present study, the cardiopulmonary stress of a 12-week exercise training programme in 11 chronic obstructive pulmonary disease (COPD) patients (forced expiratory volume in one second 42¡12%pred, age 69¡6 yrs) was measured. Pulmonary gas exchange and cardiac frequency (fC) of three training sessions were measured with a portable metabolic system at the beginning, mid-term and end of the programme. Symptoms were assessed with Borg scores.The exercise intensity was compared with the recommendations for exercise training by the American College of Sports Medicine (ACSM). Training effects were significant (maximum change in work: 14¡11 Watts, 6-min walk test: 44¡36 m). Whole body exercises (cycling, walking and stair climbing) consistently resulted in higher cardiopulmonary stress (oxygen uptake (V9O 2 ), minute ventilation and fC) than arm cranking and resistance training. Dyspnoea was higher during cycling than resistance training. Patients exercised for .70% (.20 min) of the total exercise time at .40% of the V9O 2 reserve and fC reserve (''moderate'' intensity according to the ACSM) throughout the programme.The cardiopulmonary stress resistance training is lower than during whole-body exercise and results in fewer symptoms. In addition, exercise testing based on guidelines using a fixed percentage of baseline peak performance and symptom scores achieves and sustains training intensities recommended according to the American College of Sports Medicine.

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Section: Discussionmentioning

confidence: 99%

Cardiopulmonary stress during exercise training in patients with COPD

Probst¹

2006

European Respiratory Journal

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“…However, incremental tests are not the only way of determining maximal responses to exercise among patients with chronic lung disease. In this context, Troosters et al 34 demonstrated that the VO 2 peak and HR expressed as percentage of the predicted value (82%±9% and 85%±9%, respectively) was similar between the 6-MWT (1.40±0.29 L/min) and the maximum incremental test on a cycle ergometer (1.41±0.18 L/min) 34 . Casas et al 35 corroborated these findings by demonstrating that patients with COPD achieved 90% of the VO 2 observed in a maximal test on a cycle ergometer from the third minute of the 6-MWT.…”

Section: Discussionmentioning

confidence: 99%

Reproducibility of step tests in patients with bronchiectasis

Camargo¹,

Lanza²,

Tupinambá³

et al. 2013

Braz. J. Phys. Ther.

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| Background: The step test has been used to assess exercise capacity in patients with chronic respiratory disease; however, its use has not been described with regard to patients with bronchiectasis (BCT). Objective: This study assessed the reliability of the Chester step test (CST) and the modified incremental step test (MIST) and also correlated these tests with pulmonary function, heart rate (HR), and distance walked during the 6-min walk test (6-MWT). Method: On separate days, 17 patients randomly underwent two CSTs, two MISTs, and two 6-MWTs. Number of steps (NOSs), HR, and perceived exertion were recorded immediately before and after these tests. Results: NOSs were similar across CSTs (124±65 and 125±67) and MISTs (158±83 and 156±76). Differences were not found across the CSTs and MISTs with regard to HR (138±25 bpm and 136±27 bpm), SpO 2 (91±5% and 91±3%), perceived exertion (dyspnea=4

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“…It is also suitable for individuals who use orthopedic devices to walk, people with difficulties associated with maintenance of balance 22 and even for patients with severe chronic obstructive pulmonary disease. For these patients, the 6MWT can be regarded as a "near maximal" test because energy expenditure during the test comes close to the maximum, according to individual symptoms 23,24 .…”

Section: Discussionmentioning

confidence: 99%

Correlação entre os testes da caminhada, marcha estacionária e TUG em hipertensas idosas

Pedrosa¹,

Holanda²

2009

Rev. bras. fisioter.

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© Revista Brasileira de FisioterapiaCorrelation between the walk, 2-minute step and tug tests among hypertensive older womenCorrelação entre os testes da caminhada, marcha estacionária e tug em hipertensas idosas Pedrosa R, Holanda g AbstractBackground:The increase in chronic diseases among older adults, especially systemic arterial hypertension, a disease that is closely related to declining functional capacity, has created the need to study methods for activity evaluation in order to detect functional capacity levels, prescribe exercises and monitor motor and cardiovascular function. The Six-Minute Walk Test (6MWT), Two-MinuteStep Test (2MST) and Timed Up and Go Test (TUG) are indicated for such evaluations. Studies among healthy older adults have shown associations between these tests, thus aiding the evaluation of functional capacity. However, there are no studies on the relationships between the 6MWT, 2MST and TUG among hypertensive individuals, thus justifying the present research. Objectives: To investigate whether there is any association between aerobic endurance and functional mobility among hypertensive older women.Methods: This was a cross-sectional observational and analytical study on 32 hypertensive older women who were evaluated using the 6MWT, 2MST and TUG. Results: There was a moderate positive correlation between the 6MWT and 2MST (r=0.36; p=0.04), and there were moderate negative correlations between the 6MWT and TUG (r=-0.59; p=0.000) and between the 2MST and TUG (r=-0.66; p=0.000). Conclusions: For hypertensive older women, the 6MWT can be replaced by the 2MST; the same applied to healthy older adults. Regarding the correlation between the 6MWT, 2MST and TUG, it can be concluded that there is a close relationship between cardiovascular endurance and functional mobility. When there is lower cardiovascular endurance, there is precarious functional mobility and vice versa.Key words: hypertension; aging; physical fitness. ResumoContextualização: O aumento de doenças crônicas em idosos, principalmente da Hipertensão Arterial Sistêmica, doença intimamente relacionada ao declínio da capacidade funcional, determina a necessidade do estudo de métodos de avaliação da realização das atividades, possibilitando detecção de níveis de capacidade funcional, prescrição de exercícios e acompanhamento das funções cardiovascular e motora. O teste da caminhada de 6 minutos (TC6'), o teste da Marcha Estacionária de 2 minutos (TME2') e o teste Timed Up and Go (TUG) são indicados para esta avaliação. Estudos em idosos saudáveis mostram a associação entre esses testes, facilitando a avaliação da capacidade funcional. Porém, em hipertensos, não existem estudos que avaliem a relação entre TC6', TME2'e TUG, justificando a realização desta pesquisa. Objetivos: Verificar se existe associação entre endurance aeróbia e a mobilidade funcional em idosas hipertensas. Métodos: Estudo observacional, analítico e transversal, com 32 hipertensas idosas, avaliadas por meio do TC6', TME2' e TUG. Resultados: Houve correlação positiv...

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Physiological responses to the 6-min walk test in patients with chronic obstructive pulmonary disease

Cited by 250 publications

References 25 publications

Cardiopulmonary stress during exercise training in patients with COPD

Cardiopulmonary stress during exercise training in patients with COPD

Reproducibility of step tests in patients with bronchiectasis

Correlação entre os testes da caminhada, marcha estacionária e TUG em hipertensas idosas

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