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Exercise duration and blood lactate concentrations following high intensity cycle ergometry.
MedLine Citation:
PMID:  22458829     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Julien S Baker; Non Thomas; Steve M Cooper; Bruce Davies; Robert A Robergs
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Research in sports medicine (Print)     Volume:  20     ISSN:  1543-8635     ISO Abbreviation:  Res Sports Med     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-03-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101167637     Medline TA:  Res Sports Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  129-41     Citation Subset:  IM    
Affiliation:
a Exercise and Health Sciences, School of Science , University of the West of Scotland , Hamilton , Scotland.
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