title: Accuracy, reliability, linearity of Accutrend and Lactate Pro versus EBIO plus analyzer.
abstract: The accuracy, reliability and linearity in two hand-portable lactate analyzers, the Accutrend Lactate (AL) and the Lactate Pro (LP) versus the EBIO plus analyzer (EP) were evaluated. For accuracy, duplicate samples recorded on both the AL and LP revealed an overall average difference versus EP (P < 0.05). The limits of agreement between AL and EP were -0.7 to +1.0, and -1.3 to +1.5 mM between LP and EP. Reliability of AL and LP was assessed at different lactate concentrations; coefficient of variation ranged between 1.8 and 3.3% for AL and between 2.8 and 5.0% for LP. AL and LP had a good reliability for intra-, inter-analyzers, and between test strips (ICC r = 0.999). The linearity was determined versus the EP as reference. The slope coefficient of AL (1.0394) was closer to 1 than that of LP (1.1053). On these bases, AL and LP can be individually considered suitable for the sports research field.
authors.affiliation: Unit of Sport Sciences, Department of Health Sciences, University of Rome Foro Italico, Piazza Lauro De Bosis 15, Rome 00194, Italy. carlo.baldari@iusm.it
authors.forename: Carlo
authors.initials: C
authors.lastname: Baldari
authors.forename: Valerio
authors.initials: V
authors.lastname: Bonavolontà
authors.forename: Gian Pietro
authors.initials: GP
authors.lastname: Emerenziani
authors.forename: Maria Chiara
authors.initials: MC
authors.lastname: Gallotta
authors.forename: Antonio José
authors.initials: AJ
authors.lastname: Silva
authors.forename: Laura
authors.initials: L
authors.lastname: Guidetti
mesh_terms: D001774:Blood Chemical Analysis / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D006801:Humans; D019344:Lactic Acid / Q000097:blood*; D008297:Male; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D019344:Lactic Acid