Effect of duration of data averaging interval on reported peak VO₂ in patients with heart failure

Neil Smart; Leanne Short; Francesco Giallauria; Carlo Vigorito; Alessandra Vitelli; Luigi Maresca; Jonathon K Ehrman; Steven J Keteyian; Clinton A Brawner

doi:10.1016/j.ijcard.2014.12.174

Effect of duration of data averaging interval on reported peak VO₂ in patients with heart failure

Neil Smart, Leanne Short, Francesco Giallauria, Carlo Vigorito, Alessandra Vitelli, Luigi Maresca, Jonathon K Ehrman, Steven J Keteyian, Clinton A Brawner

Exercise & Sports Science

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Aim: To describe the effect of the duration of the data averaging interval on the calculated peak oxygen uptake (VO₂) reported from a symptom-limited maximal exercise test in patients with heart failure. Methods: Maximal exercise test results from 275 patients diagnosed with stable heart failure due to left ventricular systolic dysfunction (ejection fraction < 45%; age: 45-75 years; peak VO₂: 8.0-20.0 mL/kg/min), were examined. Sampling rates of 10, 20, 30 and 60 s were used to calculate peak VO₂, which was identified as the highest interval value that occurred during the final minute of exercise or the first interval in immediate recovery. ... Conclusions: Sampling rate method has a significant effect on calculated peak VO₂ and RER. We suggest that laboratories standardize their sampling rate method to ensure consistency.

Original language	English
Pages (from-to)	530-533
Journal	International Journal of Cardiology
Volume	182
DOIs	https://doi.org/10.1016/j.ijcard.2014.12.174
Publication status	Published - 2015

Keywords

Exercise Physiology

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https://hdl.handle.net/1959.11/17204

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title = "Effect of duration of data averaging interval on reported peak VO₂ in patients with heart failure",

abstract = "Aim: To describe the effect of the duration of the data averaging interval on the calculated peak oxygen uptake (VO₂) reported from a symptom-limited maximal exercise test in patients with heart failure. Methods: Maximal exercise test results from 275 patients diagnosed with stable heart failure due to left ventricular systolic dysfunction (ejection fraction < 45\%; age: 45-75 years; peak VO₂: 8.0-20.0 mL/kg/min), were examined. Sampling rates of 10, 20, 30 and 60 s were used to calculate peak VO₂, which was identified as the highest interval value that occurred during the final minute of exercise or the first interval in immediate recovery. ... Conclusions: Sampling rate method has a significant effect on calculated peak VO₂ and RER. We suggest that laboratories standardize their sampling rate method to ensure consistency.",

keywords = "Exercise Physiology",

author = "Neil Smart and Leanne Short and Francesco Giallauria and Carlo Vigorito and Alessandra Vitelli and Luigi Maresca and Ehrman, \{Jonathon K\} and Keteyian, \{Steven J\} and Brawner, \{Clinton A\}",

year = "2015",

doi = "10.1016/j.ijcard.2014.12.174",

language = "English",

volume = "182",

pages = "530--533",

journal = "International Journal of Cardiology",

issn = "0167-5273",

publisher = "Elsevier Ireland Ltd",

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TY - JOUR

T1 - Effect of duration of data averaging interval on reported peak VO₂ in patients with heart failure

AU - Smart, Neil

AU - Short, Leanne

AU - Giallauria, Francesco

AU - Vigorito, Carlo

AU - Vitelli, Alessandra

AU - Maresca, Luigi

AU - Ehrman, Jonathon K

AU - Keteyian, Steven J

AU - Brawner, Clinton A

PY - 2015

Y1 - 2015

N2 - Aim: To describe the effect of the duration of the data averaging interval on the calculated peak oxygen uptake (VO₂) reported from a symptom-limited maximal exercise test in patients with heart failure. Methods: Maximal exercise test results from 275 patients diagnosed with stable heart failure due to left ventricular systolic dysfunction (ejection fraction < 45%; age: 45-75 years; peak VO₂: 8.0-20.0 mL/kg/min), were examined. Sampling rates of 10, 20, 30 and 60 s were used to calculate peak VO₂, which was identified as the highest interval value that occurred during the final minute of exercise or the first interval in immediate recovery. ... Conclusions: Sampling rate method has a significant effect on calculated peak VO₂ and RER. We suggest that laboratories standardize their sampling rate method to ensure consistency.

AB - Aim: To describe the effect of the duration of the data averaging interval on the calculated peak oxygen uptake (VO₂) reported from a symptom-limited maximal exercise test in patients with heart failure. Methods: Maximal exercise test results from 275 patients diagnosed with stable heart failure due to left ventricular systolic dysfunction (ejection fraction < 45%; age: 45-75 years; peak VO₂: 8.0-20.0 mL/kg/min), were examined. Sampling rates of 10, 20, 30 and 60 s were used to calculate peak VO₂, which was identified as the highest interval value that occurred during the final minute of exercise or the first interval in immediate recovery. ... Conclusions: Sampling rate method has a significant effect on calculated peak VO₂ and RER. We suggest that laboratories standardize their sampling rate method to ensure consistency.

KW - Exercise Physiology

UR - https://www.scopus.com/pages/publications/84947202523

U2 - 10.1016/j.ijcard.2014.12.174

DO - 10.1016/j.ijcard.2014.12.174

M3 - Article

SN - 0167-5273

VL - 182

SP - 530

EP - 533

JO - International Journal of Cardiology

JF - International Journal of Cardiology

ER -

Effect of duration of data averaging interval on reported peak VO₂ in patients with heart failure

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