2023 Fiscal Year Final Research Report
Exploring the influence of body size differences in judo throwing techniques on the head acceleration of the uke
| Project/Area Number |
19K19946
|
|---|
| Research Category |
Grant-in-Aid for Early-Career Scientists
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Basic Section 59020:Sports sciences-related
|
|---|
| Research Institution | Osaka Kyoiku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2019-04-01 – 2024-03-31
|
| Keywords | 柔道 / 頭部外傷予防 / 角加速度 |
|---|
| Outline of Final Research Achievements |
The purpose of this study was to determine the angular acceleration produced in the head of a person thrown by a difference in body weight in judo's osoto-gari, and to verify the risk of head injury. The subjects were 12 male university judo athletes. The subject was a male university judo athlete in the heavyweight category.The experiment was conducted by measuring the angular velocity of the head when thrown by the osoto-gari technique due to the difference in body weight.As a result, it was clear that the maximum head angular acceleration values of heavyweights throwing middleweights were significantly higher than the values of heavyweights throwing heavyweights, and tended to be significantly higher than the values of heavyweights throwing lightweights. Therefore, the results suggest that the risk of head injury does not necessarily increase as the weight difference between the thrower and the person being thrown increases.
|
| Free Research Field |
コーチング
|
| Academic Significance and Societal Importance of the Research Achievements |
柔道における死亡・重大事故を減少させるための安全対策は急務である．柔道による死亡・重大事故は主に部活動中に起きているが，柔道を行う全ての者にとって安全安心でなければならない．最近の研究では，不意に押された時の受け身時における頭部への影響，異なる投げ技の影響などが進められているが，投げる人と投げられる人の体格差（体重）による頭部への影響は不明である．
したがって，本研究において「投げる人と投げられる人の体重差が大きくなればなるほど頭部外傷のリスクが高くなるとは限らないことが示唆された」ことは，指導現場への安全対策の強化や社会へ発信していくための講習会などに応用可能となる．
|
