| 棒球投手肩关节旋转运动特征研究 |
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| 引用本文： | 何勇.棒球投手肩关节旋转运动特征研究[J].山东体育学院学报,2006,22(3):107-109. |
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| 作者姓名： | 何勇 |
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| 作者单位： | 陕西教育学院体育系,陕西,西安,710061 |
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| 摘 要： | 棒球比赛中,投手是一支球队的灵魂,在很大程度上决定全局的比赛。肩部力量素质和活动范围是投手有效投球的基础,在很大程度上决定投球技术、机能的发挥。肩关节既是躯干和上肢的连结点,又是上肢运动的支点,是保证上肢完成三维活动的重要结构1]。因此,肩关节在棒球运动中发挥着
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| 关 键 词： | 肩关节 棒球 运动学 旋转 活动范围 |
| 文章编号： | 1006-2076(2006)03-0107-03 |
| 收稿时间： | 11 28 2005 12:00AM |
| 修稿时间： | 2005年11月28 |
Exploration of shoulder rotation characteristics in baseball pitchers |
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| HE Yong.Exploration of shoulder rotation characteristics in baseball pitchers[J].Journal of Shandong Physical Education Institute,2006,22(3):107-109. |
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| Authors: | HE Yong |
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| Abstract: | The aim of this study was to assess the glenohumeral joint internal and external rotational range of motion using an ultrasound based kinematic measurement device,and to isokinetically measure concentric glenohumeral joint internal and external rotation strength.26 male baseball pitchers were bilaterally measured for internal and external rotation at 90 degrees of shoulder abduction while avoiding scapulothoracic motion.The control group of 22 volunteers is not involved in overhead sports activities.The data showes that the dominant arm had a significantly greater range of external rotation than the non-dominant arm while their internal rotation showed a significant deficit as compared to the non-dominant arm.The dominant arm total rotation showed a significant deficit as compared to the non-dominant arm.The dominant arm total rotation range of motion was also significantly reduced in comparison to the non-doinant arm and to the controls.No significant difference was found between the dominant and non-dominant extremity in the control group.The data also showes a relative muscular imbalance between the internal and external rotators on the dominant arm of baseball pitchers. |
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| Keywords: | shoulder joint baseball kinematics rotation range of motion(ROM) |
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