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Stroke work progressively increased until maximal exercise in long distance runners, but plateaued at submaximal exercise in sprinters
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- Fukuda Taira
- Department of Liberal Arts and Human Development, Kanagawa University of Human Services
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- Matsumoto Akihiro
- Department of Food and Nutrition, Faculty of Human Life, Jumonji University
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- Kurano Miwa
- International Research Center of Nutrition, Food Culture, and Health, Jumonji University
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- Nagahama Hisashi
- Faculty of Economics, Asia University
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- Nakajima Toshiaki
- Heart Center, Dokkyo Medical University
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Description
<p>The possible difference in the pattern of cardiac work and stroke work response during exercise between long-distance runners and sprinters remains unclarified. The present study was conducted to elucidate the difference in these responses during exercise between long-distance runners and sprinters. A total of 11 female college athletes (5 long-distance runners and 6 sprinters) performed incremental bicycle exercise testing with respiratory gas exchange measurement. Cardiac index and stroke volume index were continuously measured during exercise by a thoracic impedance method (Physioflow). Cardiac work index (CWI) and stroke work index (SWI) were calculated as the product of cardiac index and mean blood pressure, and the product of stroke volume index and mean blood pressure, respectively. CWI progressively increased from rest to maximal exercise both in long-distance runners and sprinters. SWI progressively increased until maximal exercise in long-distance runners (at 150W: 89.5 ± 3.3 vs. at maximal exercise: 109.3 ± 6.8 g·m·m-2, p < 0.005), but plateaued at 150W in sprinters (at 150W: 107.9 ± 7.6 vs. at maximal exercise: 109.8 ± 6.7 g·m·m-2, p = N.S.). In conclusion, SWI progressively increased until maximal exercise in long-distance runners, but plateaued at submaximal exercise in sprinters. Judging from SWI response during exercise, long-distance runners might have a superior cardiac function compared to sprinters.</p>
Journal
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- The Journal of Physical Fitness and Sports Medicine
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The Journal of Physical Fitness and Sports Medicine 7 (2), 103-112, 2018
The Japanese Society of Physical Fitness and Sports Medicine
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Details 詳細情報について
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- CRID
- 1390001205414566144
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- NII Article ID
- 130006514278
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- NII Book ID
- AA12573156
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- ISSN
- 21868123
- 21868131
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- NDL BIB ID
- 028913247
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed