STUDY ON STRIDE LENGTH, RATE, ANS SPEED OF 100m SPRINTE RUNNING WITH FIVE KINDS OF SPEED
Keywords: 100m sprinter, speed, stride length, stride rate, low speeds, high speeds
AbstractStudying on sprint not only is important to this event itself, but also will accelerate the development of other events. Speed is an important index in sprint event and it is relate to stride length and stride rate. In this paper, we studied and analyzed the relationship of stride length. stride rate and speed of seven sprinters when the subjects run with five kinds of speed. In the trial, we filmed the technique of seven athletes with M9500 normal speed camera and got the data with which we analyzed the technique using SHIXUN image analysis system. The results show: (1) it is correct that seven athletes grasp gradual increase of speed, which prove that the choose of the athletes is believable; (2) when the speed increases, the stride length and the stride rate change with diHerent extent. But on the whole, it's tendentious. (3) When speed increased, stride length was the primary factor at low speeds while stride rate was the primary factor at high speeds. We suggest that seven athletes in this study should pay attention to strengthening the exercise of increasing the stride rate in usual training.
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