Hitting balls from a pitching machine and pitcher in softball: case study

J. Carboch, P. Smejkalova
{"title":"Hitting balls from a pitching machine and pitcher in softball: case study","authors":"J. Carboch, P. Smejkalova","doi":"10.32725/sk.2019.050","DOIUrl":null,"url":null,"abstract":"If a player faces a pitching machine, he/she cannot see some important cues before the ball release, which are available if the player hits the balls delivered from a pitcher. The aim is to find, if hitting balls delivered from a pitching machine or a pitcher affect the players swing timing in softball. This is a case study. The subject hit balls delivered from a pitcher and pitching machine. This action was recorded by a high-speed video camera (200 fps). The swing timing was significantly different in specific phases of the swing. The subject initiated her movement 0,24 s earlier when she faced the pitcher compared to the pitching machine (d = –0,90). T-tests revealed significant difference (p < 0,05) in the backswing and forward swing duration in the pitcher and pitching machine conditions. These differences show change in swing timing, which can affect he movement coordination. Because this is a case study, we can’t generalize the results, but coaches should be aware about these issues.","PeriodicalId":179970,"journal":{"name":"Studia Kinanthropologica","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Studia Kinanthropologica","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.32725/sk.2019.050","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

If a player faces a pitching machine, he/she cannot see some important cues before the ball release, which are available if the player hits the balls delivered from a pitcher. The aim is to find, if hitting balls delivered from a pitching machine or a pitcher affect the players swing timing in softball. This is a case study. The subject hit balls delivered from a pitcher and pitching machine. This action was recorded by a high-speed video camera (200 fps). The swing timing was significantly different in specific phases of the swing. The subject initiated her movement 0,24 s earlier when she faced the pitcher compared to the pitching machine (d = –0,90). T-tests revealed significant difference (p < 0,05) in the backswing and forward swing duration in the pitcher and pitching machine conditions. These differences show change in swing timing, which can affect he movement coordination. Because this is a case study, we can’t generalize the results, but coaches should be aware about these issues.
从投球机和投手打垒球:案例研究
如果球员面对投球机,他/她在球释放之前看不到一些重要的线索,如果球员击中投手投出的球,这些线索是可用的。目的是发现,如果打击球从投球机或投手传递影响球员在垒球挥拍时机。这是一个案例研究。被试击出投手和投球机投出的球。这个动作被高速摄像机(200帧/秒)记录下来。在不同的摇摆阶段,摇摆时间有显著差异。受试者在面对投手时比面对投球机时早0.24秒开始运动(d = - 0.90)。t检验显示,投手和投球机条件下的后挥和前挥持续时间有显著差异(p < 0.05)。这些差异表现出摆动时机的变化,从而影响运动协调。因为这是一个案例研究,我们不能概括结果,但教练应该意识到这些问题。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信