浅谈跳台跳水109C向前翻腾四周半的训练方法

跳台跳水“10 9C”向前翻腾四周半是跳水运动中的一个较难掌握的高难度动作 ,现代跳水运动训练利用基本技术和能力相结合的水、陆保护带诱导练习解决了多周翻腾看目标 ,打开技术等高台跳水发展难度的关键问题。     

Diving

The purpose of this study was to compare the backward two and one half somersault dive in a tuck position (205C) performed by females (n = 22) and the backward two and one half somersault dive in a pike position (205B) performed by males (n = 27) and by females (n = 6) to determine changes required by females to successfully perform 205B. Video data of the dives performed at the 1999 FINA World Diving Cup were captured and digitised to obtain times and postures of the divers at specific events including maximum depression, takeoff, and entry. Estimates of mass‐normalised work done on the springboard were obtained from flight times. Males performed 31% more mass‐normalised work on the springboard to gain height than females. Based on the dive scores and the short time to extend and prepare for entry it was concluded that females are not yet able to perform 205B with the same quality as they perform 205C. Females performing backward dives need to adjust their techniques to allow increased work on the springboard to generate height and rotation. Also, faster contraction of the hip flexors may allow them to achieve the tightest position more quickly to complete rotations with more time to prepare for entry.     

Diving

The purpose of this study was to compare the reverse two and one half somersault dive in a tuck position (305C) performed by females (n = 24), and the reverse two and one half somersault dive in a pike position (305B) performed by males (n = 21), to determine changes required by females to successfully perform 305B. Key performance variables in reverse dives were also compared to those of forward dives. Video data of the dives performed at the 1999 FINA World Diving Cup were captured and digitised to obtain times and postures of the divers at specific events including hurdle landing, takeoff, and entry. Estimates of hurdle flight height and mass‐normalised work done on the springboard were obtained from hurdle and flight times. The males did more work on the springboard to achieve greater height and rotation than females. Females performing 305C had less hip and knee flexion at hurdle landing than males performing 305B and took longer to achieve maximum hip flexion after takeoff from the springboard. To progress from 305C to 305B females need to adjust their techniques to put more energy into the system. Desirable changes include increased height in the hurdle and increased hip and knee flexion prior to hurdle landing. Comparison of results for reverse dives with data previously presented for forward dives indicated that divers are more limited in the number of somersaults and dive position in reverse dives than forward dives despite equivalent or better height in reverse dives than forward dives.     

完成团身侧空翻三周程序教学初探

团身侧空翻三周是一个高难度动作。该动作衍发于团身后空翻三周,但其动作技术和素质及专项能力要求都要高于后者。通过程序教学的方法和手段在较短时间内能使运动员成功掌握该动作。     

空翻转体运动与人体骨盆、髋关节结构的关系之研究

通过测量统计得知,从事高难运动技术的体操、跳水、艺术体操等运动员,其骨盆与髋关节普遍窄小。本文从人体解剖学特点和运动技术力学原理论证了这种窄小的合理性与必然性,这对高难技术的发展以及运动员的科学选材等都具有一定的参考意义。     

李娅高低杠反吊分腿前空翻再握杠的运动学分析

通过运动学分析揭示了李娅完成的高低杠反吊分腿前空翻再握杠的运动学规律和技术特点,为年轻运动员学习和改进此类动作提供理论依据和技术参考。     

对自由体操首次完成前手翻连接直体前空翻转体900°动作的分析

对我国国家体操集训队队员肖俊峰在世界上首次完成的前手翻转体 90 0°的高难技术动作进行了高速摄影和测力试验。通过测试结果分析 ,得到了动作技术的一些特点 ,主要表现在 :前手翻采用屈臂撑地技术 ;前手翻脚着地时相身体姿态角合理 ;完成直体前空翻转体动作起跳过程中 ,左右方向上冲量较大 ;起跳离地时拉大肩角     

高水平运动员跳马踺子直体后空翻转体360°动作运动学特征的研究

运用运动生物力学高速度摄影影片测量方法，对国际级高水平运动员的踺子直体后空翻转体３６０°跳马动作进行测量，获得了该动作的运动学参数，并进行了运动学分析，为运动训练实践提供了该动作的技术参数及运动技术的生物力学特征     

前手翻接直体前空翻和直体前空翻转体360度动作的连接技术特征

前手翻是连接空翻与空翻动作之间的一个基本动作．由运动学分析证明了前手翻动作中的蹬摆腿，推手和翻转技术能够产生出较大的水平速度，通过制动起跳技术可以使水平速度快速转换，垂直速度迅速提高，从而保证了完成动作的质量和空翻动作之间的连接速度。