| A comparison of lactate concentration in plasma collected from the toe, ear, and fingertip after a simulated rowing exercise. | |
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MedLine Citation:
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PMID: 10690448 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To examine the validity of using blood taken from the toe for the assessment of plasma lactate concentration in rowers. To achieve this, values were compared with those taken from the fingertip and earlobe. METHODS: Nine subjects exercised at two separate submaximum workloads on the Concept II rowing ergometer. The loads, each lasting four minutes, elicited mean (SD) heart rate responses of 160.1 (8.5) and 180.1 (5.7) beats/min, which corresponded to 76.4 (6.1)% and 91.9 (4.7)% of the estimated heart rate maximum of the subjects. Blood was simultaneously removed after the cessation of exercise by three experimenters and was analysed for plasma lactate concentration. RESULTS: At 76.4% of estimated heart rate maximum, the mean (SD) plasma lactate concentrations sampled from the fingertip, toe, and earlobe were 6.36 (1.58), 5.81 (1.11), and 5.29 (1.24) mmol/l respectively. At 91.9% of estimated heart rate maximum, respective values were 8.81 (2.30), 8.53 (1.37), and 8.41 (2.35) mmol/l. No significant differences (p > 0.05) were found between any of the sites at either work intensity. CONCLUSIONS: The toe may offer a practical alternative for assessing the concentration of lactate during rowing, having the advantage that repeated blood samples can be removed without interruption of the rowing action. |
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Authors:
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J J Forsyth; M R Farrally |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article |
Journal Detail:
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Title: British journal of sports medicine Volume: 34 ISSN: 0306-3674 ISO Abbreviation: Br J Sports Med Publication Date: 2000 Feb |
Date Detail:
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Created Date: 2000-03-16 Completed Date: 2000-03-16 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0432520 Medline TA: Br J Sports Med Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 35-8 Citation Subset: IM |
Affiliation:
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North East Wales Institute, Wrexham, Wales, United Kingdom. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Specimen Collection / methods* Ear, External Exercise Test Female Fingers Humans Lactates / blood* Male Reproducibility of Results Sensitivity and Specificity Sports / physiology* Toes |
| Chemical | |
Reg. No./Substance:
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0/Lactates |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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