Anaerobic and Aerobic Energy System Contribution to 400-m Flat and 400-m Hurdles Track Running
| Autor: | Jacques Prioux, Elie Moussa, Dominique Duvigneau, Abderraouf Ben Abderrahaman, Maïtel Botcazou, Hasssane Zouhal, Georges Jabbour, Christophe Jacob |
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| Rok vydání: | 2010 |
| Předmět: |
Male
medicine.medical_specialty Anaerobic Threshold Respiratory gas exchange Physical Therapy Sports Therapy and Rehabilitation Athletic Performance Running Young Adult Animal science Heart Rate medicine Humans Orthopedics and Sports Medicine Track and field athletics Energy system Mathematics Track and Field VO2 max General Medicine Oxygen deficit Athletes Exercise Test Lactates Physical therapy Energy Metabolism Anaerobic exercise |
| Zdroj: | Journal of Strength and Conditioning Research. 24:2309-2315 |
| ISSN: | 1064-8011 |
| Popis: | The present study was designed to determine the aerobic and anaerobic energy contributions to 400-m Flat (400 mF) and 400-m hurdles (400 mH) using the accumulated oxygen deficit method. Six nationally ranked athletes, specializing in 400 mH and familiar with 400 mF volunteered to participate in this study. All the participants performed 3 track-running sessions. The first session determine the maximal oxygen uptake and maximal aerobic speed using lightweight ambulatory respiratory gas exchange measurements (o2000, Medical Graphics). The second and third tests consist of a 400 mF and a 400 mH performed on the track in a randomized counterbalanced order. Accumulated oxygen deficit determined during the 400 mF was significantly higher than that determined during the 400 mH (65.0 +/- 10.0 mlxkg vs. 44.1 +/- 7.4 mlxkg, p < 0.05). Thus, the aerobic contribution calculated was significantly higher during the 400 mH compared to during the 400 mF (43.0 +/- 2.0 vs. 37.4 +/- 2.7%, p < 0.05, respectively). These results strongly suggest that the aerobic contribution is greater during a 400 mH compared to during a 400 mF. Thus, this study provides a scientific rationale behind the coaches' practice and contributes to a better understanding of the differences between 400 mF and 400 mH. Then, the coaches must propose different training programs for both 400 mF and 400 mH runners. |
| Databáze: | OpenAIRE |
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