Reliability and Validity of the Lactate Pro 2 Analyzer

Autor/inn/en	Crotty, Nora May; Boland, Marie; Mahony, Nick; Donne, Bernard; Fleming, Neil
Titel	Reliability and Validity of the Lactate Pro 2 Analyzer
Quelle	In: Measurement in Physical Education and Exercise Science, 25 (2021) 3, S.202-211 (10 Seiten) PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Crotty, Nora May)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1091-367X
DOI	10.1080/1091367X.2020.1865966
Schlagwörter	Reliability; Validity; Measurement Equipment; Exercise; Metabolism; Physiology; Student Athletes; College Students; Foreign Countries; Males; Ireland (Dublin) + Suchen Sie Ihr Suchwort? Reliabilität; Gültigkeit; Messinstrument; Übung; Stoffwechsel; Physiologie; Collegestudent; Ausland; Male; Männliches Geschlecht
Abstract	This study evaluated the reliability of the portable Lactate Pro 2 analyzer (LP2), and its validity compared to a laboratory-based analyzer, YSI 1500 Sport (YSI). Blood samples (n = 258) were collected during 44 graded incremental rowing tests, with data from 17 tests used to quantify load, heart rate, and oxygen consumption at lactate threshold. Inter-LP2 reliability was high with coefficient of variation = 3.3%; Bland Altman 95% limits of agreement varied from ± 0.3 mmol.L[superscript -1] for blood lactate (BLa) [less than or equal to]4.0 mmol.L[superscript -1] to -1.6 to +1.4 mmol.L[superscript -1] for BLa >8.0 mmol.L[superscript -1], with minimal systematic bias. Despite LP2 measurements being ~1.42 times higher than YSI measurements, no significant differences (P > 0.05) were detected when quantifying load, heart rate, or oxygen consumption data at lactate threshold. The results support using different LP2 devices interchangeably, especially when BLa [less than or equal to] 8 mmol.L[superscript -1], and using the LP2 to identify training intensities at lactate threshold. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01