Document Detail


HRTP, prolonged ergometer exercise, and single sculling.
MedLine Citation:
PMID:  17534783     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The use of the heart rate turn point (HRTP) to set target heart rate (THR) for prolonged rowing ergometer (E) and single scull rowing (R) was evaluated. Ten trained subjects (age 21.3 +/- 4.0 yrs; VO (2max) 4.77 +/- 0.62 l . min-1) performed incremental exercise tests and 30-min prolonged E and R. Expired air and heart rate (HR) were measured continuously. During E and R, blood lactate concentration (La) was measured at rest and after 5, 10, 20, and 30 min. HRTP and V (E)TP (2) were determined as the deflection point of the heart rate performance curve and the second TP in minute ventilation (V. (E)). No significant differences were found for work rate (W), HR, and VO (2) between HRTP and V. (E)TP (2) and they were significantly related (r = 0.94, p < 0.001; r = 0.96, p < 0.001). Mean HR, VO (2), VCO (2), and V. (E) were not significantly different between E and R. La remained at a steady state in both E and R but was slightly higher in E. Tidal volume (V (T)) was found to be lower and breathing rate (BR) was significantly higher in R. HR at HRTP from an incremental rowing ergometer exercise test is valid to establish a THR consistent with constant metabolic training intensity in prolonged ergometer and single scull rowing.
Authors:
P Hofmann; T Jürimäe; J Jürimäe; P Purge; J Maestu; M Wonisch; R Pokan; S P von Duvillard
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Publication Detail:
Type:  Journal Article     Date:  2007-05-29
Journal Detail:
Title:  International journal of sports medicine     Volume:  28     ISSN:  0172-4622     ISO Abbreviation:  Int J Sports Med     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-10-29     Completed Date:  2008-03-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008349     Medline TA:  Int J Sports Med     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  964-9     Citation Subset:  IM    
Affiliation:
Institute of Sports Science, KF-University of Graz, Graz, Austria. peter.hofmann@uni-graz.at
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Exercise / physiology*
Exercise Test / methods
Female
Heart Rate / physiology*
Humans
Lactic Acid / blood,  metabolism*
Male
Physical Endurance / physiology*
Respiration
Sports / physiology
Tidal Volume / physiology
Chemical
Reg. No./Substance:
50-21-5/Lactic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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