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Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners
Joint Authors
Meilland, Renaud
Billat, Véronique L.
Koralsztein, Jean Pierre
Landrain, Morgan
Petot, Hélène
Mille-Hamard, Laurence
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-03
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Medicine
Information Technology and Computer Science
Abstract EN
Purpose.
Despite the increasing popularity of marathon running, there are no data on the responses of stroke volume (SV) and cardiac output (CO) to exercise in this context.
We sought to establish whether marathon performance is associated with the ability to sustain high fractional use of maximal SV and CO (i.e, cardiac endurance) and/or CO, per meter (i.e., cardiac cost).
Methods.
We measured the SV, heart rate (HR), CO, and running speed of 14 recreational runners in an incremental, maximal laboratory test and then during a real marathon race (mean performance: 3 hr 30 min ± 45 min).
Results.
Our data revealed that HR, SV and CO were all in a high but submaximal steady state during the marathon (87.0 ± 1.6%, 77.2 ± 2.6%, and 68.7 ± 2.8% of maximal values, respectively).
Marathon performance was inversely correlated with an upward drift in the CO/speed ratio (mL of CO×m−1) (r=−0.65, P<0.01) and positively correlated with the runner’s ability to complete the race at a high percentage of the speed at maximal SV (r=0.83, P<0.0002).
Conclusion.
Our results showed that marathon performance is inversely correlated with cardiac cost and positively correlated with cardiac endurance.
The CO response could be a benchmark for race performance in recreational marathon runners.
American Psychological Association (APA)
Billat, Véronique L.& Petot, Hélène& Landrain, Morgan& Meilland, Renaud& Koralsztein, Jean Pierre& Mille-Hamard, Laurence. 2012. Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners. The Scientific World Journal،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-499956
Modern Language Association (MLA)
Billat, Véronique L.…[et al.]. Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners. The Scientific World Journal No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-499956
American Medical Association (AMA)
Billat, Véronique L.& Petot, Hélène& Landrain, Morgan& Meilland, Renaud& Koralsztein, Jean Pierre& Mille-Hamard, Laurence. Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners. The Scientific World Journal. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-499956
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499956