英文摘要
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Purpose: This study was to analyze the combination and curve changes among stride length, stride frequency, averaged speed of 20 meters per running in 200 m sprint, and then to investigate the sprint athletes’ speed performance of the whole trip. 14 male sprint athletes were recruited in this study as subjects and their averaged age, grade, height, weight, and legs length are 17.36 ± 1.84 years old, 24.79 ± 0.89 seconds, 174.64 ± 5.28 centimeters, 64.93 ± 5.18 kilograms, and 94.43 ± 3.85 centimeters. Methods: We applied Ariel Performance analysis system to capture the image data for this study and proceeded to analyze the data. The collected data were analyzed by descriptive statistics. Results: The longest stride length, 2.27 meters per stride, occurred during 60 m ~ 80 m part and the fast stride frequency, 4.23 seconds per stride, occurred during 20 m ~ 40 m part. The distribution of speed was a single peak pattern and the maximal speed, 9.14 meters per second, occurred during 60 m ~ 80 m part. Conclusion: The speed decrease 200 m after process phase a major factor the ability of the stride frequency is reduced, there for focused stride frequency ability is suggested. Taken keep a fast stride frequency to maintain the speed performance, the physical structure of the distribution phases a reasonable speed, after process phase in the straight 100 meters, as possible the ability to maintain speed, reduce the magnitude of speed decrease, will be important crucial of is influence performance.
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参考文献
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