The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players
INTRODUCTION: It is unknown whether an extremely high heart rate can affect oxygen pulse profile during progressive maximal exercise in healthy subjects. OBJECTIVE: Our aim was to compare relative oxygen pulse (adjusted for body weight) curves in athletes at their maximal heart rate during treadmill...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier España
2011-01-01
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| Series: | Clinics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322011000500020 |
| _version_ | 1818112581262376960 |
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| author | Raphael Rodrigues Perim Gabriel Ruiz Signorelli Jonathan Myers Ross Arena Claudio Gil Soares de Araújo |
| author_facet | Raphael Rodrigues Perim Gabriel Ruiz Signorelli Jonathan Myers Ross Arena Claudio Gil Soares de Araújo |
| author_sort | Raphael Rodrigues Perim |
| collection | DOAJ |
| description | INTRODUCTION: It is unknown whether an extremely high heart rate can affect oxygen pulse profile during progressive maximal exercise in healthy subjects. OBJECTIVE: Our aim was to compare relative oxygen pulse (adjusted for body weight) curves in athletes at their maximal heart rate during treadmill cardiopulmonary exercise testing. METHODS: A total of 180 elite soccer players were categorized in quartiles according to their maximum heart rate values (n = 45). Oxygen consumption, maximum heart rate and relative oxygen pulse curves in the extreme quartiles, Q1 and Q4, were compared at intervals corresponding to 10% of the total duration of a cardiopulmonary exercise testing. RESULTS: Oxygen consumption was similar among all subjects during cardiopulmonary exercise testing; however subjects in Q1 started to exhibit lower maximum heart rate values when 20% of the test was complete. Conversely, the relative oxygen pulse was higher in this group when cardiopulmonary exercise testing was 40% complete (p<.01). Although the slopes of the lines were similar (p = .25), the regression intercepts differed (p<.01) between Q1 and Q4. During the last two minutes of testing, a flat or decreasing oxygen pulse was identified in 20% of the soccer players, and this trend was similar between subjects in Q1 and Q4. CONCLUSION: Relative oxygen pulse curve slopes, which serve as an indirect and non-invasive surrogate for stroke volume, suggest that the stroke volume is similar in young and aerobically fit subjects regardless of the maximum heart rate reached. |
| first_indexed | 2024-12-11T03:21:13Z |
| format | Article |
| id | doaj.art-053c95f8609a4f20a82f510da5232725 |
| institution | Directory Open Access Journal |
| issn | 1807-5932 1980-5322 |
| language | English |
| last_indexed | 2024-12-11T03:21:13Z |
| publishDate | 2011-01-01 |
| publisher | Elsevier España |
| record_format | Article |
| series | Clinics |
| spelling | doaj.art-053c95f8609a4f20a82f510da52327252022-12-22T01:22:37ZengElsevier EspañaClinics1807-59321980-53222011-01-0166582983510.1590/S1807-59322011000500020The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer playersRaphael Rodrigues PerimGabriel Ruiz SignorelliJonathan MyersRoss ArenaClaudio Gil Soares de AraújoINTRODUCTION: It is unknown whether an extremely high heart rate can affect oxygen pulse profile during progressive maximal exercise in healthy subjects. OBJECTIVE: Our aim was to compare relative oxygen pulse (adjusted for body weight) curves in athletes at their maximal heart rate during treadmill cardiopulmonary exercise testing. METHODS: A total of 180 elite soccer players were categorized in quartiles according to their maximum heart rate values (n = 45). Oxygen consumption, maximum heart rate and relative oxygen pulse curves in the extreme quartiles, Q1 and Q4, were compared at intervals corresponding to 10% of the total duration of a cardiopulmonary exercise testing. RESULTS: Oxygen consumption was similar among all subjects during cardiopulmonary exercise testing; however subjects in Q1 started to exhibit lower maximum heart rate values when 20% of the test was complete. Conversely, the relative oxygen pulse was higher in this group when cardiopulmonary exercise testing was 40% complete (p<.01). Although the slopes of the lines were similar (p = .25), the regression intercepts differed (p<.01) between Q1 and Q4. During the last two minutes of testing, a flat or decreasing oxygen pulse was identified in 20% of the soccer players, and this trend was similar between subjects in Q1 and Q4. CONCLUSION: Relative oxygen pulse curve slopes, which serve as an indirect and non-invasive surrogate for stroke volume, suggest that the stroke volume is similar in young and aerobically fit subjects regardless of the maximum heart rate reached.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322011000500020Cardiopulmonary exercise testingMaximum oxygen consumptionRamp protocolAthletesSoccer |
| spellingShingle | Raphael Rodrigues Perim Gabriel Ruiz Signorelli Jonathan Myers Ross Arena Claudio Gil Soares de Araújo The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players Clinics Cardiopulmonary exercise testing Maximum oxygen consumption Ramp protocol Athletes Soccer |
| title | The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| title_full | The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| title_fullStr | The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| title_full_unstemmed | The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| title_short | The slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| title_sort | slope of the oxygen pulse curve does not depend on the maximal heart rate in elite soccer players |
| topic | Cardiopulmonary exercise testing Maximum oxygen consumption Ramp protocol Athletes Soccer |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322011000500020 |
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