Exercise duration and blood lactate concentrations following high intensity cycle ergometry

Baker, Julien S., Thomas, Non, Cooper, Steve M., Davies, Bruce, & Robergs, Robert A. (2012) Exercise duration and blood lactate concentrations following high intensity cycle ergometry. Research in Sports Medicine: An International Journal, 20(2), pp. 129-141.

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Abstract

The aim of this study was to investigate differences in blood lactate accumulation following 10 and 20 sec of maximal cycle ergometer exercise. Body mass, stature, and age of the group was determined prior to testing (82.57 5.94 kg 177 5.94 cm and 21.42 1.61 yrs, respectively). Eight male rugby union players performed two maximal sprints in a random fashion of 10 and 20 sec duration on a cycle ergometer. During the 10 and 20 sec trial, blood lactate levels measured were as follows 1.58 0.78, 4.43 1.4, and 3.5 1.2 mmol.l 1 vs. 1.72 0.65, 6.14 2, and 5.68 2.22 mmol.l 1, respectively. Differences were found (P < 0.01) from rest to 5 and 10 min postexercise in both groups. Differences in concentration also were found between groups at both postexercise stages (P < 0.01). The reduction in blood lactate concentrations observed between the 5 to10 min recovery stages were 0.91 0.58 mmol.l 1 vs. 0.46 0.48 mmol.l 1 following 10 and 20 sec of maximal exercise, respectively (P > 0.05). The concentrations observed are interesting and may influence recovery time and subsequent exercise performance.

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ID Code: 96785
Item Type: Journal Article
Refereed: Yes
Keywords: lactic acid, adult; age; analysis of variance; article; blood; body mass; confidence interval; ergometry; exercise tolerance; fatigue; glycolysis; human; instrumentation; male; physiology; running; time, Age Factors; Analysis of Variance; Body Mass Index; Confidence Intervals; Ergometry; Exercise Tolerance; Fatigue; Glycolysis; Humans; Lactic Acid; Male; Running; Time Factors; Young Adult, anaerobic; exercise metabolism; maximal performance
DOI: 10.1080/15438627.2012.634723
ISSN: 1543-8635
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Exercise & Nutrition Sciences
Copyright Owner: Copyright 2012 Taylor & Francis Group, LLC
Deposited On: 25 Jul 2016 23:30
Last Modified: 27 Jul 2016 00:43

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