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Inter-Day Reliability of Finapres^® Cardiovascular Measurements During Rest and Exercise

Lookup NU author(s): Dr Owen JeffriesORCiD

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Abstract

This study evaluated the inter-day test-retest reliability of the Finapres^® finger pulse pressure measuring device during rest and exercise. Eight male participants visited the laboratory twice for evaluation of the inter-day reliability of the Finapres^® finger-pulse pressure device to measure: heart rate (HR), stroke volume (SV), cardiac output (Q̇) and mean arterial pressure (MAP) at rest, and treadmill walking at 3 km/h on 1% and 5% inclines. There were no systematic biases for any of the variables between days. The coefficient of variation (CV%) and 95% limits of agreement (95% LoA) was smallest for MAP (CV%=1.6–3.2%; LoA total error=4.6–12 mmHg) and HR (CV%=3.2–3.9%; LoA total error=6.8–11.9 b/min), increasing with exercise intensity (gradient). The pattern of error was different for Q̇, with decreasing CV% (4.8–3.8%) and LoA (4.2–5.7 L/min) from rest to 5% gradient, with the larger errors occurring for resting SV (CV=7.4%; LoA total error=21.5 ml). The device measures MAP and HR reliably between days; however, error increases at higher intensities. The measurement of SV is less reliable, probably owing to underlying algorithmic assumptions.

Publication metadata

Author(s): Waldron M, Patterson SD, Jeffries O

Publication type: Article

Publication status: Published

Journal: Sports Medicine International Open

Year: 2017

Volume: 02

Issue: 01

Pages: E9-E15

Online publication date: 17/11/2017

Acceptance date: 13/10/2017

Date deposited: 31/08/2018

ISSN (electronic): 2367-1890

Publisher: Georg Thieme Verlag

URL: https://doi.org/10.1055/s-0043-122081

DOI: 10.1055/s-0043-122081

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