Avaliação da capacidade de exercício em portadores de doença pulmonar obstrutiva crônica: comparação do teste de caminhada com carga progressiva com o teste de caminhada com acompanhamento

Abstract

Objective: To evaluate the applicability of the incremental (shuttle) walk test in patients with chronic obstructive pulmonary disease and compare the performance of those patients on the shuttle walk test to that of the same patients on the encouraged 6-minute walk test. Methods: A cross-sectional study was conducted, in which 24 patients with chronic obstructive pulmonary disease were selected. In random order, patients were, after an initial practice period, submitted to a shuttle walk test and an encouraged 6-minute walk test. Results: The patients obtained a higher heart rate (expressed as a percentage of that predicted based on gender and age) on the encouraged 6-minute walk test (84.1 ± 11.4%) than on the shuttle walk test (76.4 ± 9.7%) (p = 0.003). The post-test sensation of dyspnea (Borg scale) was also higher on the encouraged 6-minute walk test. On average, the patients walked 307.0 ± 89.3 meters on the shuttle walk test and 515.5 ± 102.3 meters on the encouraged 6-minute walk test (p < 0.001). There was a good correlation between the two tests in terms of the distance walked (r = 0.80, p < 0.001). Conclusion: The shuttle walk test is simple and easy to implement in patients with chronic obstructive pulmonary disease. The encouraged 6-minute walk test produced higher post-test heart rate and greater post-test sensation of dyspnea than did the shuttle walk test.

Comparação das variáveis fisiológicas no teste de caminhada de seis minutos e no teste da escada em portadores de doença pulmonar obstrutiva crônica

“…In the same study, the decrease in SpO 2 was similar between tests, and the authors concluded that both the SCT and the TC6' are considered submaximal tests which evaluate the capacity of the patient to perform daily tasks 6 . Despite being a low cost test of easy application, the SCT, initially described in 1955, has not been suitably standardized until now 7 .Both the TC6'and the SCT are considered submaximal tests, since the patient is told to perform the activity at the highest velocity possible, with standard verbal encouragement 7,8 . The present study had the aim to compare the TC6' and the SCT in COPD patients, analyzing the behavior of the physiological variables, the distance completed and the dyspnea perception in both tests.…”

Effects of an incremental walking test in the gait of individuals with Chronic Obstructive Pulmonary Disease

“…The incremental SWT 14 was conducted subsequent to the initial assessment. It consisted of 12 levels of consecutive walks on a flat route of 20 m round trip, in increasing speed.…”

“…The participants were told to walk until they feel they would not be able to maintain the required speed, i.e. be three meters before the cone when the beep was sounded 14 . The total distance (in meters) walked by the participant was calculated.…”

“…It is a variable that contains quantitative information on gait characteristics, which reflect the effects of internal and external forces during locomotion and enable the identification of changes in the movement pattern 13 . For evaluation of the functional capacity in patients with different pathologies, the literature points out the use of walking tests, being the Shuttle Walking Test (SWT), an alternative that meets the basic criteria for a stress test for patients with chronic airway obstruction 14 …”

Suplementação oral de L-carnitina associada ao treinamento físico e muscular respiratório na doença pulmonar obstrutiva crônica: estudo preliminar

“…O teste de caminhada com carga progressiva (TCP) foi realizado em um corredor plano de 10 m de comprimento e intensidade determinada por sinal sonoro padrão 8 . Os voluntários realizaram o TC6' e o TCP em dias e horas marcadas, com prévia instrução de como seriam realizados os testes, com roupas e calçados adequados, pelo menos uma hora após a última refeição 8 .…”