A shuttle walk test for assessment of functional capacity in chronic heart failure☆,☆☆,★,★★
Section snippets
Patients
The study population consisted of 46 patients with CHF symptoms and left ventricular ejection fraction (EF) <40% who underwent cardiopulmonary assessment in the Heart Failure Unit of our Hospital. All patients had at least a 6-month history of heart failure symptoms, and their functional class had been stable for the last 3 weeks. Exclusion criteria were acute myocardial infarction in the last 3 months, angina during exercise, sustained ventricular arrhythmias, primary pulmonary disease, or
Cycle ergometry cardiopulmonary exercise testing
The mean peak VO2 was 17.8 ± 4.4 mL/kg/min, and %PVO2 was 62.7% ± 17.8%. Maximal workload achieved was 56 ± 20 W. The anaerobic threshold was 14.4 ± 4.2 mL/kg/min, at a mean of 81% ± 12% of peak VO2 (and at 49% ± 16% of %PVO2 ). The respiratory exchange ratio at maximal exercise was 1.09 ± 0.10. One patient repeated the exercise testing because of not achieving the anaerobic threshold the first time. All tests were concluded because of fatigue or dyspnea.
Walk tests
Distances walked in 6-MT ranged from 250
Discussion
In this study we have applied the SWT to patients with heart failure first, finding that it is a simple and safe method to assess their functional capacity; in addition, it is reproducible after just one practice walk. Distance walked in SWT correlates with peak VO2 and %PVO2 better than distance in 6-MT does.
Peak VO2 measurement is a reference parameter in the assessment of patients with heart failure, and its prognostic value is well known.3, 4, 5 However, CPET with expired gas analysis is
Acknowledgements
We thank Evan Loh, MD, Hospital of the University of Pennsylvania, for his critical review of this manuscript and his valuable suggestions.
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Cited by (109)
Estimating maximum work rate during cardiopulmonary exercise testing from the six-minute walk distance in patients with heart failure
2024, International Journal of Cardiology: Cardiovascular Risk and PreventionInterpreting Meaningful Change in the Distance Walked in the 10-Metre ISWT in Cardiac Rehabilitation
2019, Heart Lung and CirculationCitation Excerpt :The 10-metre incremental shuttle walk test (ISWT) is a commonly used externally paced and incremental field exercise test in cardiac rehabilitation [9]. Previous research has supported both the retest reliability of this test when either one or two tests were performed on admission to cardiac rehabilitation [10–15] and criterion validity when either one or two tests were performed [10,11,14–17]. An important aspect of measurement properties is the interpretability of the change scores.
Poor performance in incremental shuttle walk and cardiopulmonary exercise testing predicts poor overall survival for patients undergoing esophago-gastric resection
2018, European Journal of Surgical OncologyCitation Excerpt :Those achieving an ISWT result of greater or less than 350 m have a lower or higher operative risk respectively [8]. Studies have suggested that ISWT and CPET tests correlate well with each other [16,17]. As part of a perioperative enhanced recovery program an assessment of patient fitness was undertaken at initial presentation with OG cancer.
Evaluation of the Glittre-ADL test as an instrument for classifying functional capacity of individuals with cardiovascular diseases
2017, Brazilian Journal of Physical TherapyAssociation between Modified Shuttle Walk Test and cardiorespiratory fitness in overweight/obese adults with primary hypertension: EXERDIET-HTA study
2017, Journal of the American Society of HypertensionThe preoperative use of field tests of exercise tolerance to predict postoperative outcome in intra-abdominal surgery: a systematic review
2016, Journal of Clinical Anesthesia
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From the Departments of aCardiology and bPneumology, Virgen del Rocío University Hospital.
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Supported by a grant from the Public Health Service of Andalucía, Spain (Consejería de Salud de la Junta de Andalucía).
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Reprint requests: Francisco J. Morales, MD, Cayetano del Toro, #46, 11010 Cádiz, Spain.
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