摘要
本研究的目的是揭示专业组和业余组铁人三项运动员参加全程或者半程铁人三项比赛期间的运动学特性,其中专业组包括：优秀组（18岁以上）和青少年组（16~18岁）。通过分析各种运动学特性之间的关系,为更好的发展铁人三项运动提供理论支持。本研究对包含男性和女性在内的311名铁人三项运动员在比赛中脚的触地时间、腾空时间、步频、步幅、足部触地类型、每圈的速度以及正式比赛中所有具有代表性的数据变量等指标进行了分析和研究。得出结果：女性业余组和专业组铁人三项运动员的运动学特性相比男性更具有显著相关性。影响跑步成绩的最大因素是与地面的接触时间和步幅。足部触地类型与地面的接触时间有着显著相关性,并且脚跟触地型运动员用的触地时间比脚心触地型运动员用的触地时间要长。足部触地类型与速度并没有显著相关性。
The purpose was to examine the running kinematics of Elite U23 and Junior triathletes and their relationships in a full - course or sprint distance race. A total of 311 male and female triathletes were analyzed to determine ground contact time, flight time, stride rate, stride length, foot - strike type and velocity for each lap and an overall representative mean created for each variable across the race. Women displayed notably greater differences in kinematics between Junior and Elite fields than was observed in the men. Large correlations were observed for running performance with contact time （r =0. 500 -0. 580, P 〈 0. 001 ） and stride length （ r = 0. 552 -0. 664, P 〈 0. 001 ）. Analysis of fi）ot strike type revealed a significant interaction with contact time, with heel strike longer than mid - foot strike, hut uo relationship with running velocity.
出处
《山东体育科技》
2015年第6期83-85,共3页
Shandong Sports Science & Technology
