Comparison of the Lactate Pro and Analox GM7 blood lactate analysers

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dc.contributor.author Nunan, David
dc.contributor.author Shave, Robert
dc.contributor.author Van Someren, Ken
dc.contributor.author Thatcher, Rhys
dc.contributor.author Howatson, Glyn
dc.date.accessioned 2008-11-05T14:07:49Z
dc.date.available 2008-11-05T14:07:49Z
dc.date.issued 2005
dc.identifier.citation Nunan , D , Shave , R , Van Someren , K , Thatcher , R & Howatson , G 2005 , ' Comparison of the Lactate Pro and Analox GM7 blood lactate analysers ' International Journal of Sports Medicine , vol 26 , no. 8 , pp. 657-61 . en
dc.identifier.issn 0172-4622
dc.identifier.other PURE: 79361
dc.identifier.other dspace: 2160/772
dc.identifier.uri http://hdl.handle.net/2160/772
dc.identifier.uri http://www.thieme.com/SID2036225516222/journals/pubid926886473.html en
dc.description van Someren KA, Howatson G, Nunan D, Thatcher R, Shave R., Comparison of the Lactate Pro and Analox GM7 blood lactate analysers, Int J Sports Med. 2005 Oct;26(8):657-61. RAE2008 en
dc.description.abstract The purpose of this study was firstly, to determine the level of agreement between the Lactate Pro and Analox GM7 for the measurement of blood lactate, and secondly, to examine whether these analysers may be used interchangeably to identify lactate parameters routinely used in the physiological assessment of athletes. Twenty well-trained male cyclists performed an incremental cycle ergometry test; duplicate blood samples were taken simultaneously throughout the test for lactate determination using the two analysers. Power output and heart rate at LT, LT1, 2 mmol · L-1, and 4 mmol · L-1 were calculated from the lactate values obtained from the two analysers. There was a strong linear relationship between the two analysers (Lactate Pro = 1.4541 × Analox GM7 - 0.1287; R2 = 0.969, p <0.001; SEE = 0.704) though the Lactate Pro overestimated blood lactate when compared to the Analox GM7; 95 % ratio limits of agreement (Lactate Pro/Analox GM7) were 1.40 ×/÷ 1.35. Differences were found between analysers for power output and heart rate at LT1 (p <0.01), 2 mmol · L-1 (p <0.001), and 4 mmol · L-1 (p <0.001); no differences were found between analysers for power output or heart rate at LT. In conclusion, the average difference in blood lactate concentration measured by the Lactate Pro and the Analox GM7 was 40 %, with 95 % of measures differing by between 4 % and 89 %. This poor level of agreement and the significant differences between the two analysers in power output and heart rate associated with a number of lactate parameters indicate that these analysers should not be used interchangeably. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof International Journal of Sports Medicine en
dc.subject Blood lactate response en
dc.subject lactate parameters en
dc.subject agreement en
dc.subject training prescription en
dc.title Comparison of the Lactate Pro and Analox GM7 blood lactate analysers en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1055/s-2004-830337
dc.contributor.institution Department of Sport & Exercise Science en
dc.description.status Peer reviewed en


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