3-Min step test and treadmill exercise for evaluating exercise-induced asthma

Tancredi, Giancarlo; Quattrucci, Serena; Scalercio, F; Castro, Graça; Zicari, Anna Maria; Bonci, Enea; Cingolani, S; Indinnimeo, Luciana; Midulla, Fabio

doi:10.1183/09031936.04.00039704

Cited by 24 publications

(29 citation statements)

References 39 publications

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“…25 The cadence changes during the Chester step test determine the increase in the work intensity, which precipitates the perceived exertion, leading patients to discontinue the test at a similar stage to that achieved in the previous test. Patients with cystic fibrosis 5 and exerciseinduced asthma 7 showed better reproducibility in a step test than we observed. Both of the latter studies used a 3-min step test, and though some of the children could continue the test, it was interrupted when the established end-time was reached, and we suspect that the short test duration probably contributed to the excellent reproducibility.…”

Section: Discussioncontrasting

confidence: 54%

“…The step test is widely used in healthy subjects, and several step test protocols have been adapted to study various outcomes in cardiopulmonary diseases. [3][4][5][6][7][8][9][10][11][12][13] The advantage of the step test over the 6-min walk test or shuttle test is that the step test requires less space and therefore can be conducted in settings such as an intensive care unit, a physician's office, or at a home-based or inpatient rehabilitation program.…”

Section: Introductionmentioning

confidence: 99%

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Chester Step Test in Patients With COPD: Reliability and Correlation With Pulmonary Function Test Results

et al. 2011

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BACKGROUND:The 5-stage Chester step test assesses aerobic capacity in healthy subjects. It has not been tested in patients with COPD. OBJECTIVE: To determine the reliability of the Chester step test in patients with COPD and correlation with pulmonary function test and exercise test results. METHODS: Thirty-two patients (mean ؎ SD FEV 1 46 ؎ 15% of predicted) undertook 2 Chester step tests and two 6-min walk tests, on different days, in random order. A subgroup of 11 patients performed incremental cycle ergometry. RESULTS: Thirty-one patients performed stage 1 of the Chester step test. Nineteen patients performed stage 2 of the Chester step test. The number of steps was highly reproducible: 66 ؎ 41 steps vs 68 ؎ 41 steps. There was no difference in heart rate or S pO 2 between the 2 Chester step tests at the peak of exercise or at the end of each stage. There was a significant correlation between number of steps and FEV 1 (r ‫؍‬ 0.43, P ‫؍‬ .02), and 6-min walk distance (r ‫؍‬ 0.60, P ‫؍‬ .001). Heart rate increased according to advanced stages of the Chester step test, up to 81 ؎ 13% of predicted. There was a significant correlation between number of steps and peak heart rate (r ‫؍‬ 0.55, P ‫؍‬ .001). In the 11 patients who performed the incremental cycling test there was a significant correlation between number of steps and peak work load (r ‫؍‬ 0.69, P ‫؍‬ .02). In the 6 patients in whom oxygen uptake could be estimated from the Chester step test, oxygen uptake was higher than that measured at the peak of the cycling test (30.8 ؎ 5.1 mL/kg/min vs 17.4 ؎ 4.5 mL/kg/min, respectively, P ‫؍‬ .001). CONCLUSIONS: Despite being highly reproducible, the Chester step test had a very short duration in patients with COPD. The number of steps incremented in each stage seems to be too large for these patients. An adaptation of the Chester step test should be considered for patients with COPD.

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Section: Discussioncontrasting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Chester Step Test in Patients With COPD: Reliability and Correlation With Pulmonary Function Test Results

et al. 2011

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“…The reliability of the different step tests has been studied among patients with idiopathic pulmonary fibrosis 23 , COPD 16 , asthma 24 , or cystic fibrosis 25 . Although Swinburn et al 26 observed great variation between the four step tests conducted on patients with COPD, most studies have found the opposite (i.e., little variation between the step tests among patients with chronic lung disease 16,[23][24][25] ). In patients with COPD, the CST was highly reliable for tests conducted on the same day 16 , with an ICC of 0.99 (95% CIs=0.97 to 0.99) for NOSs.…”

Section: Discussionmentioning

confidence: 99%

“…They found that this test was reliable with regard to the evaluation of SpO 2 , HR, dyspnea perception, and NOSs in 11 of 12 individuals. Tancredi et al 24 studied children with asthma by comparing two 3-min step tests conducted on a single 30-cm step at a pace of 30 steps/min across different days. These authors did not find differences in maximal HR (191±4.6 bpm and 192±5.0 bpm) or a drop in FEV 1 (12.8±5.9% and 12.1±5.9%).…”

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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“…The 6MWT followed the standards of the ATS 20 . To ensure mouth breathing, a nose clip was used during the test, as recommended by other authors to check the occurrence of EIB [21][22][23] . The physical performance on the test was determined through the total walked distance (WD), in ms, and the maximal heart rate was obtained through the formula: HRmax=210-(0.65 x yrs of age) 5 .…”

Section: Six-minute Walking Testmentioning

confidence: 99%

Avaliação da capacidade de exercício em adolescentes asmáticos e saudáveis

Basso¹,

Jamami²,

Pessoa³

et al. 2010

Rev. bras. fisioter.

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Objectives: To compare the physical performance and responses obtained in the six-minute walking test (6MWT) and the six-minute step test (6MST) between asthmatic and healthy adolescents; and to investigate the relationship between the responses obtained in the tests and the body mass index (BMI), physical activity level and spirometric variables. Methods: Nineteen asthmatic adolescents (AG) and 19 healthy adolescents (HG) of both sexes, aged between 11 and 15 years, were assessed by means of spirometry, the 6MWT and the 6MST, and their physical activity levels were quantified using the International Physical Activity Questionnaire (IPAQ). Results: The AG had poorer physical performance, lower heart rate (HR) and greater lower-limb (LL) fatigue in the 6MST. In the 6MWT, the AG had positive correlations between walked distance (WD) and duration of intense activity, and between HR and BMI, whereas the HG had positive correlations between WD and HR and between WD and respiratory rate (RR). In the 6MST, the AG showed positive correlations between RR and maximum voluntary ventilation (MVV) and between duration of moderate activity and physical performance. The AG also showed negative correlations between physical performance in the 6MST and BMI, and between sensation of dyspnea and duration of walking. Also in the 6MST, the HG showed positive correlations between RR and MVV, and between BMI and LL fatigue (p≤0.05). Conclusion:The 6MST demonstrated differences in exercise capacity between the asthmatic and healthy individuals. Furthermore, the physical performance and responses obtained in the tests were correlated with the MVV, BMI and physical activity level.Key words: asthma; spirometry; muscle fatigue; dyspnea. No TC6, houve correlação positiva no GA da distância percorrida (DP) com o tempo de atividade intensa e da FC com o IMC e, no GS, da DP com a FC e com a frequência respiratória (FR). No TD6, houve correlação positiva no GA da ventilação voluntária máxima (VVM) com a FR; do tempo de atividade moderada com o TD6-T; além de correlação negativa do TD6-T com o IMC e da dispneia com o tempo de caminhada; no GS, correlações positivas da VVM com a FR e da fadiga de MMII com IMC (p≤0,05). Conclusão: O TD6 demonstrou diferença na capacidade para o exercício entre asmáticos e saudáveis. Além disso, o desempenho físico e as respostas obtidas nos testes correlacionaram-se com os valores de VVM, IMC e nível de atividade física. Resumo

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3-Min step test and treadmill exercise for evaluating exercise-induced asthma

Cited by 24 publications

References 39 publications

Chester Step Test in Patients With COPD: Reliability and Correlation With Pulmonary Function Test Results

Chester Step Test in Patients With COPD: Reliability and Correlation With Pulmonary Function Test Results

Reproducibility of step tests in patients with bronchiectasis

Avaliação da capacidade de exercício em adolescentes asmáticos e saudáveis

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