Analysis of basic ability of baseball batting

棒球击球基本能力分析

• 批准号: 17300212
• 负责人: KANOSUE Kazuyuki
• 金额: $ 9.05万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17300212/
• 关键词: Baseball; Batting; accuracy; トレーニング; コーチング; 正確性

Baseball batting is one of the most difficult task in that the batter has to hit the ball over 150km/h with a thin bat of 6cm in diameter. And batters are required to send a hit with batting average over 300. To accomplish this it is necessary to achieve accurate bat control. It has been believed that a good batter can swing a bat with the accuracy of mm order. In the present study, 10 university baseball players hit a ball on a tee that was set at the center of strike zone 20 times. The trajectory of the bat was taken by high speed video camera and the deviation of bat swing in the vertical direction was measured and the standard deviation(SD) of the deviation was calculated as a measure of bat swing accuracy. The SD was 1.1±0.3cm. This was larger than the value generally believed. It was suggested that the size of ball(6cm) and bat(6cm) permits to produce a good batting even when the center of the ball is 1cm off the center of bat at the hit. This probably prevent the accuracy to develop further. If players use a thin bat and small balls, they might be able to get better accuracy in swing.

棒球击球是最困难的任务之一，因为击球手必须用直径为6厘米的细球棒以超过150公里/小时的速度击球。击球手必须打出平均击球率超过300的安打。要做到这一点，必须实现准确的蝙蝠控制。人们一直认为，一个好的击球手可以挥动球棒的精度为毫米级。在本研究中，10名大学棒球运动员将球击在位于好球带中心的发球台上20次。通过高速摄像机拍摄球棒的轨迹，并测量球棒在垂直方向上摆动的偏差，并计算偏差的标准偏差（SD）作为球棒摆动准确性的量度。SD为1.1±0.3cm。这比人们普遍认为的价值要高。有人建议，球（6厘米）和蝙蝠（6厘米）的大小允许产生一个良好的击球，即使在击球时球的中心是1厘米离开蝙蝠的中心。这可能会阻碍准确性的进一步发展。如果球员使用薄球棒和小球，他们可能能够在挥杆时获得更好的准确性。

项目成果

Determinants of difference in leg stiffness between endurance- and power-trained athletes

• DOI: 10.1016/j.jbiomech.2007.10.014
• 发表时间: 2008-01-01
• 期刊: JOURNAL OF BIOMECHANICS
• 影响因子: 2.4
• 作者: Hobara, Hiroaki;Kimura, Kozo;Kanosue, Kazuyuki
• 通讯作者: Kanosue, Kazuyuki

Deteminants of difference in leg stiffness between endurance-and power-trained athletes

耐力训练和力量训练运动员腿部刚度差异的决定因素

• 发表时间: 2007
• 期刊: J.Biomechanics 41
• 作者: H.Hobara;et. al.
• 通讯作者: et. al.

Determinants of difference in leg stiffness between endurance-asnd power-trained athletes.

耐力训练和力量训练运动员之间腿部僵硬差异的决定因素。

• 发表时间: 2007
• 期刊: J. Biomechanics 41
• 作者: H. Hobara;et. al.
• 通讯作者: et. al.

400m走中の脚筋電図測定

400m跑步时腿部肌电图测量

• 发表时间: 2007
• 期刊: スポーツ科学研究 4
• 作者: 五味 宏生、彼末 一之;他
• 通讯作者: 他

野球のピッチングにおけるボールの画像解析

棒球投球过程中球的图像分析

• 发表时间: 2007
• 期刊: 日本機械学会シンポジウム講演論文集 07-24
• 作者: 小関 泰広;他
• 通讯作者: 他