| Project/Area Number |
10680028
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
体育学
|
|---|
| Research Institution | Kobe University |
|---|
Principal Investigator |
NOMURA Haruo Kobe University Faculty of Human Development, Professor, 発達科学部, 教授 (50031331)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
MAEDA Masato Kobe University Faculty of Human Development, Associate Professor, 発達科学部, 助教授 (90209388)
YANAGIDA Yasuyoshi Kobe University Faculty of Human Development, Professor, 発達科学部, 教授 (50031373)
|
|---|
| Project Period (FY) |
1998 – 2000
|
| Project Status |
Completed (Fiscal Year 2000)
|
| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥900,000 (Direct Cost: ¥900,000)
|
|---|
| Keywords | Baseball bat / Skill of swing / Analysis of movement / Easy for use / Dynamic analysis |
|---|
| Research Abstract |
The purpose of this study was to investigate the effect of the characteristics of baseball bat on swing. For this purpose, it was provided an experimental bat to be able to set up various conditions for the position of the center of gravity and the mass. On the other, it was investigated the skill of bat swing in baseball. The subjects were five skilled baseball players and three unskilled players. The behaviors of the bat during their swings were analyzed with DLT method using two cameras, and the three-dimensional kinematical data were calculated at impact to the ball and during swinging the bat. As the result, it was suggested that the level of skill for bat swing could be evaluated by the reproducibility of swing. Next, it was investigated the effect of the characteristics of baseball bat on swing. The subjects were five skilled baseball players. As the result, there were a few cases in which the angular velocity of bat at the impact was affect to the position of center of gravity or the mass on bat. In the case in which the characteristics of bat was affect to the swing speed at the impact, there had a favorably effect on the behavior of bat during swing. But, it was not recognized that the characteristics of bat affected to the accuracy at the impact. Eventually, it was summarized that the baseball bat is required to equip the characteristic of bat to be suitable the character of player after understanding the character on each player.
|
