ADJUSTMENT OF THE LOWER LIMB MOTION AT DIFFERENT IMPACT HEIGHTS IN BASEBALL BATTING
ADJUSTMENT OF THE LOWER LIMB MOTION AT DIFFERENT IMPACT HEIGHTS IN BASEBALL BATTING
复制标题
棒球击球不同击球高度下肢运动的调整
DOI：
--
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
T. Wada
中科院分区：
文献类型：
--
作者：
T. Tago;M. Ae;B. Tsuchioka;Nobuko Ishii;T. Wada
摘要本研究旨在探讨运动员在击球区高、中、低三种不同击球区时，下肢运动的变化。研究对象为某大学棒球队的10名右利手男性熟练击球手。使用三维自动运动分析系统（Vicon 612）收集数据。计算下肢关节角度。通过对高区击球与低区击球的比较，发现击球手在低区击球时，从挥拍开始阶段到击球阶段，通过调整两髋关节的屈伸角度来调整髋关节的运动。之后，左上臂平行右髋外展角的相位在高、中区小于低区，左髋外展角在高、中区大于低区。
The purpose of this study was to investigate the change in the lower limb motion to three different hitting areas of the strike zone: high, middle, and low. Subjects were 10 right-handed male skilled batters of a university baseball team. Data were collected using a three dimensional automatic motion analysis system (Vicon 612). Joint angles of the lower limbs were computed. Comparison of the hitting in the high area vs. low area revealed that to hit the ball in the low area the batter adjusted the motion of the hip joint by regulating the flexion-extension angle of the both hips from the phase of the Swing start to the phase of the Impact. After that the phase of the Left upper arm parallel abduction angle of the right hip was smaller in case of the high, middle areas than the of the low area, and abduction angle of the left hip was larger in case of the high, middle areas than the low area.