Comparison of Maximal Oxygen Uptake Calculated With Incremental Shuttle Walking Test and Cardiopulmonary Exercise Test in Patients With COPD

CHEST Journal ◽  
2014 ◽  
Vol 146 (4) ◽  
pp. 681A
Author(s):  
Alev Gurgun ◽  
Pervin Korkmaz Ekren ◽  
Hale Karapolat ◽  
Pelin Ozdemir ◽  
Zehra Toreyin ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Maximal Oxygen Uptake ◽  
Cardiopulmonary Exercise Test ◽  
Walking Test ◽  
Cardiopulmonary Exercise

scholarly journals Can categorised values of maximal oxygen uptake discriminate patterns of exercise dysfunction in pectus excavatum: a prospective cohort study?

2021 ◽  
Vol 8 (1) ◽  
pp. e000940
Author(s):  
Christopher M R Satur ◽  
Ian Cliff ◽  
Nicholas Watson
Keyword(s):  
Oxygen Uptake ◽  
Pulmonary Function ◽  
Exercise Test ◽  
Maximal Oxygen Uptake ◽  
Pectus Excavatum ◽  
Exercise Physiology ◽  
Cardiopulmonary Exercise Test ◽  
Cardiopulmonary Exercise ◽  
Group A ◽  
Group B

Cohort studies of patients with pectus excavatum have inadequately characterised exercise dysfunction experienced. Cardiopulmonary exercise test data were delineated by maximal oxygen uptake values >80%, which was tested to examine whether patterns of exercise physiology were distinguished.MethodsSeventy-two patients considered for surgical treatment underwent assessment of pulmonary function and exercise physiology with pulmonary function tests and cardiopulmonary exercise test between 2006 and 2019. Seventy who achieved a threshold respiratory gas exchange ratio of >1.1 were delineated by maximal oxygen uptake >80%, (group A, n=33) and <80% (group B, n=37) and comparison of constituent physiological parameters performed.ResultsThe cohort was 20.8 (±SD 6.6) years of age, 60 men, with a Haller’s Index of 4.1 (±SD 1.4). Groups A and B exhibited similar demography, pulmonary function test results and Haller’s index values. Exercise test parameters of group B were lower than group A; work 79.2% (±SD 11.3) versus 97.7 (±SD 10.1), anaerobic threshold 38.1% (±SD 7.8) versus 49.7% (±SD 9.1) and O2 pulse 77.4% (±SD 9.8) versus 101.8% (±SD 11.7), but breathing reserve was higher, 54.9% (±SD 13.1) versus 44.2% (±SD 10.8), p<0.001 for each. Both groups exhibited similar incidences of carbon dioxide retention at peak exercise. A total of 65 (93%) exhibited abnormal values of at least one of four exercise test measures.ConclusionThis study showed that patients with pectus excavatum exhibited multiple physiological characteristics of compromised exercise function. It is the first study that defines differing patterns of exercise dysfunction and provides evidence that patients with symptomatic pectus excavatum should be considered for surgical treatment.

scholarly journals How Patients With Heart Failure Perform Daily Life Activities

2020 ◽  
Vol 13 (11) ◽  
Author(s):  
Massimo Mapelli ◽  
Elisabetta Salvioni ◽  
Alice Bonomi ◽  
Paola Gugliandolo ◽  
Fabiana De Martino ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Oxygen Uptake ◽  
Exercise Test ◽  
Cardiopulmonary Exercise Test ◽  
Peak Oxygen Consumption ◽  
Borg Scale ◽  
Walking Test ◽  
Cardiopulmonary Exercise ◽  
Stable Conditions

Background: Cardiopulmonary exercise test and 6-minute walking test are frequently used tools to evaluate physical performance in heart failure (HF), but they do neither represent activities of daily living (ADLs) nor fully reproduce patients’ symptoms. We assessed differences in task oxygen uptake, both as absolute value and as percentage of peak oxygen consumption (peakVO 2 ), ventilation efficiency (VE/VCO 2 ratio), and dyspnea intensity (Borg scale) in HF and healthy subjects during standard ADLs and other common physical actions. Methods: Healthy and HF subjects (ejection fraction <45%, stable conditions) underwent cardiopulmonary exercise test. All of them, carrying a wearable metabolic cart, performed a 6-minute walking test, two 4-minute treadmill exercises (at 2 and 3 km/h), and ADLs: ADL1 (getting dressed), ADL2 (folding 8 towels), ADL3 (putting away 6 bottles), ADL4 (making a bed), ADL5 (sweeping the floor for 4 minutes), ADL6 (climbing 1 flight of stairs carrying a load). Results: Sixty patients with HF (age 65.2±12.1 years; ejection fraction 30.4±6.7%, peakVO 2 14.2±4.0 mL/[min·kg]) and 40 healthy volunteers (58.9±8.2 years, peakVO 2 28.1±7.4 mL/[min·kg]) were enrolled. For each exercise, patients showed higher VE/VCO 2 ratio, percentage of peakVO 2 , and Borg scale value than controls, while absolute values of task oxygen uptake and exercise duration were lower and higher, respectively, in all activities, except for treadmill (fixed execution time and intensity). Differently from Borg Scale data, metabolic values and exercise time length changed in parallel with HF severity, except for ADL duration in very short (ADL3) and composite (ADL1) activities. Borg scale values correlated with percentage of peakVO 2 . Conclusions: During ADLs, patients self-regulated activities in parallel with HF severity by decreasing intensity (VO 2 ) and prolonging the effort.

Agreement between ACSM’s equation and cardiopulmonary exercise test in determine maximal oxygen uptake in individuals with metabolic syndrome

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Reginaldo Ceolin-Nascimento ◽  
Felipe Xerez Cepeda ◽  
José Roberto DeMoura ◽  
Fernanda Cristina Ferreira Camargo ◽  
Lucas Fortes-Queiroz ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Oxygen Uptake ◽  
Exercise Test ◽  
Maximal Oxygen Uptake ◽  
Cardiopulmonary Exercise Test ◽  
Cardiopulmonary Exercise

Novel rehabilitation program after left ventricular assist device (LVAD) implantation improves functional tests and reduces levels of prognostic heart failure biomarkers

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Chwyczko ◽  
L Zalucka ◽  
E Smolis-Bak ◽  
I Kowalik ◽  
E Noszczak ◽  
...  
Keyword(s):  
Heart Failure ◽  
Exercise Test ◽  
Cardiopulmonary Exercise Test ◽  
Rehabilitation Program ◽  
Left Ventricular ◽  
Prognostic Biomarkers ◽  
Funding Source ◽  
Walking Test ◽  
Cardiopulmonary Exercise ◽  
Galectin 3

Abstract Background Rehabilitation after LVAD implantation is increasingly used. We developed the novel method of comprehensive rehabilitation starting directly after LVAD implantation. Study group 21 recent LVAD (15 Heart Mate III, 6 HeartWare) recipients (56.2±11.7 yrs, 100% men) were included to 5-week rehabilitation program, which included supervised endurance training on cycloergometer (5 times per week), resistance training, general fitness exercises with elements of equivalent and coordination exercises (every day). 6-minute walking test (6MWT), cardiopulmonary exercise test (CPET) and prognostic biomarkers: NT-proBNP, Galectin-3 and ST2 were investigated at the beginning and at the end of rehabilitation program. Results See Table 1. At the end of rehabilitation program, significant increase in 6MWT distance, maximum workload, peak VO2 and upward shift of anaerobic threshold in CPET were observed in all patients. Significant reductions of NTproBNP, ST2 and galectin-3 levels were observed. There were no major adverse events during rehabilitaton. Conclusions Comprehensive novel rehabilitation in LVAD recipients is safe and results in significant improvement of 6-minutes walking test distance and cardiopulmonary exercise test results. Moreover, this novel rehabilitation program reduces levels of prognostic biomarkers of heart failure: NT-proBNP, Galectin-3 and ST2. Funding Acknowledgement Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Center for Research and Development - STRATEGMED II project

scholarly journals Low-technology exercise test in the preoperative evaluation of lung resection candidates

2016 ◽  
Vol 73 (2) ◽  
Author(s):  
A. Brunelli ◽  
C. Pompili ◽  
M. Salati
Keyword(s):  
Oxygen Consumption ◽  
Exercise Test ◽  
Screening Test ◽  
Lung Resection ◽  
Cardiopulmonary Exercise Test ◽  
Stair Climbing ◽  
Functional Evaluation ◽  
Exercise Tests ◽  
Walking Test ◽  
Cardiopulmonary Exercise

Exercise tests are increasingly used in the preoperative functional evaluation of lung resection candidates. Low-technology exercise tests include six minute walking, shuttle walking and stair climbing. Conflicting evidence has been reported regarding 6 minute walking test. This test should not be used to select patients for lung resection. An incremental shuttle walk test is easier to replicate than 6 minute walking test. Most patients achieving 25 shuttles or 400 m have a maximum oxygen consumption measured at cardiopulmonary exercise test greater than 15 l/Kg/min. Although this test tends to underestimate performance at the lower range compared to peak oxygen consumption it can be used a screening test before lung resection. Excluding patients from operation based on this test alone is however not recommended and a formal cardiopulmonary exercise test should be always used in those walking less than 400 m. Stair climbing has been extensively studied in thoracic surgery. Several studies have found that poor performance in this test is indicative of cardiopulmonary complications and mortality after lung resection. In particular, climbing less than 12 m represents very high risk, whereas climbing more than 22 m is associated with a favourable outcome. Recent guidelines recommend referring all patients climbing lower than 22 m to cardiopulmonary exercise test. Stair climbing can be used as a screening test in cases cardiopulmonary exercise test is not readily available. In general, patients climbing more than 22 m can proceed to surgery without further evaluation.

scholarly journals Risk stratification in heart failure with mild reduced ejection fraction

2020 ◽  
Vol 27 (2_suppl) ◽  
pp. 59-64
Author(s):  
Damiano Magrì ◽  
Giovanna Gallo ◽  
Gianfranco Parati ◽  
Mariantonietta Cicoira ◽  
Michele Senni
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Oxygen Uptake ◽  
Risk Stratification ◽  
Exercise Test ◽  
Peak Oxygen Uptake ◽  
Cardiopulmonary Exercise Test ◽  
Recent Contribution ◽  
Reduced Ejection Fraction ◽  
Cardiopulmonary Exercise

Heart failure with mid-range ejection fraction represents a heterogeneous and relatively young heart failure category accounting for nearly 20–30% of the overall heart failure population. Due to its complex phenotype, a reliable clinical picture of heart failure with mid-range ejection fraction patients as well as a definite risk stratification are still relevant unsolved issues. In such a context, there is growing interest in a comprehensive functional assessment by means of a cardiopulmonary exercise test, yet considered a cornerstone in the clinical management of patients with heart failure and reduced ejection fraction. Indeed, the cardiopulmonary exercise test has also been found to be particularly useful in the heart failure with mid-range ejection fraction category, several cardiopulmonary exercise test-derived parameters being associated with a poor outcome. In particular, a recent contribution by the metabolic exercise combined with cardiac and kidney indexes research group showed an independent association between the peak oxygen uptake and pure cardiovascular mortality in a large cohort of recovered heart failure with mid-range ejection fraction patients. Contextually, the same study supplied an easy approach to identify a high-risk heart failure with mid-range ejection fraction subset by using a combination of peak oxygen uptake and ventilatory efficiency cut-off values, namely 55% of the maximum predicted and 31, respectively. Thus, looking at the above-mentioned promising results and waiting for specific trials, it is reasonable to consider cardiopulmonary exercise test assessment as part of the heart failure with mid-range ejection fraction work-up in order to identify those patients with an unfavourable functional profile who probably deserve a close clinical follow-up and, probably, more aggressive therapeutic strategies.

Preoperative cardiopulmonary exercise testing

2021 ◽  
pp. 133-137
Author(s):  
William J.M. Kinnear ◽  
James H. Hull
Keyword(s):  
Oxygen Uptake ◽  
Anaerobic Threshold ◽  
Exercise Testing ◽  
Exercise Test ◽  
Surgical Planning ◽  
Cardiopulmonary Exercise Testing ◽  
Cardiopulmonary Exercise Test ◽  
Cardiopulmonary Exercise ◽  
Good Outcome ◽  
Clinical Problems

This chapter discusses how the results of a cardiopulmonary exercise test (CPET) can be used for preoperative surgical planning. A low preoperative maximum oxygen uptake (VO2max) is associated with a poor outcome. The lower the VO2max, the worse the prognosis. Use of the anaerobic threshold is less reliable. The CPET may identify clinical problems which can be optimized prior to surgery. Pre-habilitation can improve the chances of a good outcome from surgery.

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