| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2018-03-16 |
| タイトル |
|
|
タイトル |
The Relationship Between Coefficients of Drag and Swimming Performance |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| アクセス権 |
|
|
アクセス権 |
metadata only access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
高木, 英樹
清水, 幸丸
小野木, 裕
草川, 喜種
|
| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
The purposes of this study were to establish a methodology for measurement of the drag coefficients in swimming and to determine the relationship between the drag coefficients and swimming performance. A new system capable of measuring the hydrodynamic force during swimming in the circulating water channel(CWC). The subjects were ten collegiate swimmers(eight males and two females). The subjects were attached to the load cell and asked to swim the front crawl at the same stroke frequency at different water flow velocities(V). The residual thrust(Tr)which equaled the thrust minus the resintance. The water flow velocity was increased from 0m/s at 0.2m/s intervals until the Tr became negative. Using the relationship between the Tr and the V, the maximum thrust(<special>T0</special>)and the theoretical swimming velocity(<special>T0</special>)were determined by means of regression analysis. The coefficient of active drag(<special>CDa</special>)was calculated by the following equation;<special>CDa</special>=<special>T0</special>/0.5ρ As <special>V20</special>, where ρ represents the density of water and As represents the body surface area. The values of <special>CDa</special> were in the range from 0.038 to 0.085 and tended to decrease with the swimming velocity. There was a significant negative relationship between the <special>CDa</special> and the swimming performance. A lower value of <special>CDa</special> means higher ability to reduce active drag and produce superior performance. We conclude that the <special>CDa</special> is a practical and significant indicator of swimming performance. |
| 書誌情報 |
三重大学教育学部研究紀要. 自然科学
巻 52,
p. 13-21,
発行日 2001-03-01
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| ISSN |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0389-9225 |
| 書誌レコードID |
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|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00234199 |
| フォーマット |
|
|
内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
| 出版者 |
|
|
出版者 |
三重大学教育学部 |
| 資源タイプ（三重大） |
|
|
値 |
Departmental Bulletin Paper / 紀要論文 |
