Associations between the distance covered in the incremental shuttle walk test and lung function and health status in patients with chronic obstructive pulmonary disease

Ushiki, Atsuhito; Nozawa, Shuhei; Matsumura, Yasuo; Urushihata, Kazuhisa; Yamamoto, Hiroshi; Hanaoka, Masayuki

doi:10.1016/j.resinv.2016.08.004

Cited by 8 publications

(13 citation statements)

References 27 publications

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“…In patients with moderate and severe COPD, the distance covered during the ISWT is significantly associated with pulmonary function parameters, such as vital capacity and airway obstruction (FEV 1 ), as well as health-related quality of life ( 35 ). According to Yildiz et al ( 36 ), the ISWT distance is significantly associated with FEV 1 ( r = 0.65) and FVC ( r = 0.54) in adults with bronchiectasis.…”

Section: Discussionmentioning

confidence: 99%

“…The lung function findings observed in our study were similar to those observed by Li et al (17) in Chinese patients who presented a mean FVC and FEV 1 of 91%pred and 72%pred, respectively. In patients with moderate and severe COPD, the distance covered during the ISWT is significantly associated with pulmonary function parameters, such as vital capacity and airway obstruction (FEV 1 ), as well as health-related quality of life (35). According to Yildiz et al (36), the ISWT distance is significantly associated with FEV 1 (r = 0.65) and FVC (r = 0.54) in adults with bronchiectasis.…”

Section: Discussionmentioning

confidence: 99%

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Desaturation-Distance Ratio During Submaximal and Maximal Exercise Tests and Its Association With Lung Function Parameters in Patients With Lymphangioleiomyomatosis

et al. 2021

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Background: The desaturation–distance ratio (DDR), the ratio of the desaturation area to the distance walked, is a promising, reliable, and simple physiologic tool for functional evaluation in subjects with interstitial lung diseases. Lymphangioleiomyomatosis (LAM) is a rare neoplastic condition frequently associated with exercise impairment. However, DDR has rarely been evaluated in patients with LAM.Objectives: To assess DDR during maximal and submaximal exercises and evaluate whether DDR can be predicted using lung function parameters.Methods: A cross-sectional study was conducted in a cohort of women with LAM. The 6-min walking test (6MWT) and the incremental shuttle walking test (ISWT) were performed, and DDR was obtained from both tests. The functional parameters were assessed at rest using spirometry and body plethysmography. The pulmonary function variables predictive of DDR were also assessed.Results: Forty patients were included in this study. The mean age was 46 ± 10 years. Airway obstruction, reduced DLCO, and air trapping were found in 60, 57, and 15% of patients, respectively. The distance walked and the DDR for the 6MWT and ISWT were, respectively, 517 ± 65 and 443 ± 127 m; and 6.6 (3.8–10.9) and 8.3 (6.2–12.7). FEV1 (airway obstruction) and reduced DLCO and RV/TLC (air trapping) were independent variables predictive of DDR during exercises field tests [DDR6MWT = 18.66–(0.06 × FEV1%pred)–(0.10 × DLCO%pred) + (1.54 × air trapping), Radjust2 = 0.43] and maximal [DDRISWT = 18.84–(0.09 × FEV1%pred)–(0.05 × DLCO%pred) + (3.10 × air trapping), Radjust2 = 0.33].Conclusion: Our results demonstrated that DDR is a useful tool for functional evaluation during maximal and submaximal exercises in patients with LAM, and it can be predicted using airway obstruction, reduced DLCO, and air trapping.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Desaturation-Distance Ratio During Submaximal and Maximal Exercise Tests and Its Association With Lung Function Parameters in Patients With Lymphangioleiomyomatosis

et al. 2021

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“…[ 11 , 12 ] Consequently, the ISWT is considered to be a more standardized test than the 6MWD. [ 12 ] The ISWT is a test imposing an incremental acceleration as the patient walks round trips on a 10-meter course. [ 12 , 13 ] The test includes 12 levels, and each level lasts 1 minute.…”

Section: Methodsmentioning

confidence: 99%

“…[ 12 ] The ISWT is a test imposing an incremental acceleration as the patient walks round trips on a 10-meter course. [ 12 , 13 ] The test includes 12 levels, and each level lasts 1 minute. [ 12 , 13 ] The walking speed is determined by an audio signal and is increased every minute by 0.17 m/second from 0.50 m/second at the start to a final speed of 2.37 m/second at level 12.…”

Section: Methodsmentioning

confidence: 99%

“…[ 12 , 13 ] The test includes 12 levels, and each level lasts 1 minute. [ 12 , 13 ] The walking speed is determined by an audio signal and is increased every minute by 0.17 m/second from 0.50 m/second at the start to a final speed of 2.37 m/second at level 12. [ 12 , 13 ] Oxygen saturation and pulse rate are monitored during the test.…”

Section: Methodsmentioning

confidence: 99%

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In-hospital pulmonary rehabilitation after completion of primary respiratory disease treatment improves physical activity and ADL performance

et al. 2021

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Introduction: Pulmonary rehabilitation improves the physical condition of patients with chronic respiratory disease; however, there are patients who cannot leave the hospital because of their low activities of daily living (ADLs), despite the completion of primary respiratory disease treatment and rehabilitation during treatment. Therefore, this study demonstrated that those patients recovered their ADLs through in-hospital pulmonary rehabilitation after treatment completion. Methods: We prospectively studied 24 hospitalized patients who had some remaining symptoms and showed low ADL scores of 9 points or less on the short physical performance battery after undergoing treatment for respiratory disease in Fukujuji Hospital from October 2018 to October 2019, excluding 2 patients who had re-exacerbation and 1 patient who could not be examined using the incremental shuttle walk test (ISWT). After completion of the primary respiratory disease treatment, patients moved to the regional comprehensive care ward, and they received pulmonary rehabilitation for 2 weeks. In the ward, patients who could not yet leave the hospital could undergo pulmonary rehabilitation for up to 60 days. Data were evaluated three times: upon treatment completion (baseline), postrehabilitation, and 3 months after baseline. The main outcome was an improvement in the incremental shuttle walk test (ISWT) postrehabilitation. Results: The median age of the patients was 80 (interquartile range (IQR): 74.8–84.5), and 14 patients (58.3%) were male. The ISWT distance significantly increased postrehabilitation (median [IQR]: 60 m [18–133] vs 120 m [68–203], P < .001). The Barthel Index (BI) ( P < .001), the modified Medical Research Council ( P < .001), and other scale scores were also improved. Among patients with acute respiratory diseases such as pneumonia, chronic obstructive pulmonary disease, and interstitial pneumonia, ISWT and other data showed improvement at the postrehabilitation timepoint. Ten patients who could perform examinations at 3 months after baseline were evaluated 3 months after taking baseline data prior to starting rehabilitation. The ISWT showed significant improvement 3 months after baseline compared to baseline ( P = .024), and the ISWT distance was maintained after rehabilitation. Discussion and conclusions: Physical activity, symptoms, mental health, and ADL status in patients who had not recovered after primary treatment completion for respiratory diseases could improve through in-hospital pulmonary rehabilitation.

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Is the Leicester Cough Questionnaire useful for nontuberculous mycobacterial lung disease?

Takao

Tabusadani

Yamane

et al. 2021

Respiratory Investigation

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Associations between the distance covered in the incremental shuttle walk test and lung function and health status in patients with chronic obstructive pulmonary disease

Abstract: The ISWT is more independent of health status and pulmonary function in patients with mild COPD compared to moderate or severe cases. Therefore, the exercise capacity of patients with mild COPD should be estimated by the ISWT.

Cited by 8 publications

References 27 publications

Desaturation-Distance Ratio During Submaximal and Maximal Exercise Tests and Its Association With Lung Function Parameters in Patients With Lymphangioleiomyomatosis

Desaturation-Distance Ratio During Submaximal and Maximal Exercise Tests and Its Association With Lung Function Parameters in Patients With Lymphangioleiomyomatosis

In-hospital pulmonary rehabilitation after completion of primary respiratory disease treatment improves physical activity and ADL performance

Is the Leicester Cough Questionnaire useful for nontuberculous mycobacterial lung disease?

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