司天峰50km竞走全程速度节奏研究

A Study on the Speed Rhythm of Si Tianfeng's 50 km Walking Race

运用文献资料法、专家访谈法和数理统计法,对司天峰大邱、萨兰斯克、太仓三站50km竞走比赛中的速度和心率变化进行分析。显示,司天峰在三站比赛中,起始阶段的加速趋势均十分明显,比赛中段的行进速度也十分平稳,但在结束阶段的速度变化差异较大;38—40km是50km竞走项目最为艰难的段落,运动员在此后的积极表现是创造优良成绩的重要保证;对于长距离耐力项目而言,"U"型曲线的速度变化且波浪式的逐步提升行进速度,是一种最理想的战术安排。

The changes of speed and heart rate in the 50 km walking race between competitions in Daegu,Salansk and Taicang are analyzed by methods of literature review,expert interview and mathematical statistics.It shows that in the above three competitions,Si Tianfeng＇s accelerating trend in the initial stage is very obvious,and the speed of the middle stage is also very stable,but the speed change at the end stage is quite different;the section between 38 km and 40 km is the toughest in the whole 50 km walking.The active performance of athletes thereafter is an important guarantee for creating excellent results;for long-distance endurance events,the speed change of the＂U＂-shaped curve with gradual wave-like increase of the speed of advancement is the most ideal tactical arrangement.