title: A comparison of the lactate Pro, Accusport, Analox GM7 and Kodak Ektachem lactate analysers in normal, hot and humid conditions.
abstract: This study aimed to compare the performance of a new portable lactate analyser against other standard laboratory methods in three conditions, normal (20 +/- 1.3 degrees C; 40 +/- 5 % RH), hot (40 +/- 2.5 degrees C; 40 +/- 5 % RH), and humid (20 +/- 1.1 degrees C; 82 +/- 6 % RH) conditions. Seven healthy males, ([Mean +/- SE]: age, 26.3 +/- 1.3 yr; height, 177.7 +/- 1.6 cm; weight, 77.4 +/- 0.9 kg, .VO(2)max, 56.1 +/- 1.9 ml x kg x min(-1)) undertook a maximal cycle ergometry test to exhaustion in the three conditions. Blood was taken every 3 min at the end of each stage and was analysed using the Lactate Pro LT-1710, the Accusport, the Analox GM7 and the Kodak Ektachem systems. The MANOVA (Analyser Type x Condition x Workload) indicated no interaction effect (F(42,660), = 0.45, p > 0.99, Power = 0.53). The data across all workloads indicated that the machines measured significantly differently to each other (F(4,743) = 14.652, p < 0.0001, Power = 1.00). The data were moderately to highly correlated. We conclude that the Lactate Pro is a simple and effective measurement device for taking blood lactate in a field or laboratory setting. However, we would caution against using this machine to compare data from other machines.
authors.affiliation: University of Bath, Claverton Down, Bath BA 2 7AY, Great Britain, UK. l.mcnaughton@bath.ac.uk
authors.forename: L R
authors.initials: LR
authors.lastname: Mc Naughton
authors.forename: D
authors.initials: D
authors.lastname: Thompson
authors.forename: G
authors.initials: G
authors.lastname: Philips
authors.forename: K
authors.initials: K
authors.lastname: Backx
authors.forename: L
authors.initials: L
authors.lastname: Crickmore
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001774:Blood Chemical Analysis / Q000295:instrumentation*; D006358:Hot Temperature; D006801:Humans; D006813:Humidity; D007773:Lactates / Q000097:blood*; D008297:Male; D012016:Reference Values; D015203:Reproducibility of Results; D013178:Sports Medicine / Q000295:instrumentation*
chemical_list: D007773:Lactates