影响U型场地单板雪上技巧出槽速度因素分析

Factors Influencing Velocity Away from Decks in Snowboard Half-pipe

为了探讨影响U型场地单板雪上技巧项目运动员出槽速度的因素,主要运用运动生物力学基础理论和运动影像分析法,并结合U型场地单板雪上技巧的场地特点,对我国部分优秀单板U型场地滑雪技巧运动员入槽及出槽的部分运动学参数进行分析。结果表明场地的高度落差、第一次入槽助滑、速度和用刃方向夹角及入出槽时身体姿位均对出槽速度产生影响。建议运动员在入出槽时要调控好身体的重心位置,以便更好地控制滑行的速度和方向。

In order to analyze the factors that influence velocity away from deck of half-pipe in snowboard., the authors of this paper studied some excellent snowboarders＇ out and in half-pipe kinematic parameters using biomechanics theories and video analysis, with characteristics of half-pipe field. The results indicated that factors influencing out half-pipe velocity ineluded high fall of field, the first in half-pipe velocity, the angle by velocity direction of center of gravity and direction of snowboard edge and body position out and in half-pipe. It is suggested that snowboarders should regulate the position of center of gravity to adjust the sliding direction and velocity.