3) female softball pitcher
女子垒球投手
1.
Ultrasonic Dynamic Measuring Instrument and isokinetic equipment were used to measure the scope of shoulder joint inward and outward rotation and inward and outward rotation strength of 8 young female softball pitchers and 8 ordinary middle school students so as to find out the shoulder joint rotation characteristics of young female softball pitchers.
通过应用超声波动力学测量仪和等速仪器分别对8名青少年女子垒球投手和8名普通中学生肩关节内、外旋活动范围、内外旋肌力进行测量,探讨青少年女子垒球投手肩关节旋转运动特征。
4) pitcher's circle
(垒球)投手圈
5) wind mill
(垒球投手)绕环投球法
6) sling shot
(垒球投手)后摆投球法
补充资料:违规投手
违规投手(illegal pitcher):是指防守球员,只可以在场上担任一般任务,不可以担任投手,其原因是:
(1)在同一局内,因两次面授机宜,而被裁判或教练换下来的原任投手。
(2)警告一次后,投手仍投出速度太快的投球,因而遭到裁判判定不可再担任投手。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条