Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners
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 S...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/810859 |
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| author | Véronique L. Billat Hélène Petot Morgan Landrain Renaud Meilland Jean Pierre Koralsztein Laurence Mille-Hamard |
| author_facet | Véronique L. Billat Hélène Petot Morgan Landrain Renaud Meilland Jean Pierre Koralsztein Laurence Mille-Hamard |
| author_sort | Véronique L. Billat |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-55cfc7a70286497da9e14f661abf1fc5 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-55cfc7a70286497da9e14f661abf1fc52025-02-03T06:11:31ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/810859810859Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational RunnersVéronique L. Billat0Hélène Petot1Morgan Landrain2Renaud Meilland3Jean Pierre Koralsztein4Laurence Mille-Hamard5UBIAE, U902 INSERM, University of Evry-Val-D’Essonne, 91025 Evry, FranceUBIAE, U902 INSERM, University of Evry-Val-D’Essonne, 91025 Evry, FranceUBIAE, U902 INSERM, University of Evry-Val-D’Essonne, 91025 Evry, FranceUBIAE, U902 INSERM, University of Evry-Val-D’Essonne, 91025 Evry, FranceSports Medicine Center, CCAS, Paris, FranceUBIAE, U902 INSERM, University of Evry-Val-D’Essonne, 91025 Evry, FrancePurpose. 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.http://dx.doi.org/10.1100/2012/810859 |
| spellingShingle | Véronique L. Billat Hélène Petot Morgan Landrain Renaud Meilland Jean Pierre Koralsztein Laurence Mille-Hamard Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners The Scientific World Journal |
| title | Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners |
| title_full | Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners |
| title_fullStr | Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners |
| title_full_unstemmed | Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners |
| title_short | Cardiac Output and Performance during a Marathon Race in Middle-Aged Recreational Runners |
| title_sort | cardiac output and performance during a marathon race in middle aged recreational runners |
| url | http://dx.doi.org/10.1100/2012/810859 |
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