國中生彎道之研究
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Date
2015
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Abstract
本研究以國中生一、二年級各五名（平均11.26歲），配合高速攝影機進行60公尺彎道跑之分析，為提供教師和教練在教學及訓練之參考，了解學生之累積時間和步數、步頻和步幅及速度變化情形，分析各影響條件並探討改善技術方法，其結果顯示：一、在學生60公尺彎道跑的累積時間和步數，平均為10.51秒和38.5步。二、步頻和步幅方面，以國二生在20~30公尺階段步頻3.74/秒最快，國一生在20~30、30~40公尺步頻3.57步/秒最快。三、在30~40、50~60公尺時，國二生最大步幅1.71公尺，國一生1.62公尺。
The purpose of this study is to analyze the performance of 60-meter sprinting on the curve by using the high-speed camera as part of measurement tools. The study will provide resources for assisting teachers and coaches in their teaching and training. Ten students participated in the research study: five seventh graders and five eighth graders (average age is 11.26). The research has two aims: to understand students’ cumulative time, number of steps, stride rate, stride length and the variation of running speed, and also to analyze the impact of each condition and to discuss the methods for improving running techniques. The results of the study are: 1. During the 60-meter run, the average of cumulative time was 10.51 seconds and the average steps were 38.5 steps. 2. According to step frequency, the fastest stride rate was 3.74 seconds during the segment of 20-30m for eighth grade students; as for seventh grade students, the fastest stride rate was 3.75seconds during the segment of 20-30 meters and 30-40meters. 3. During 30-40 meters and 50-60 meters, the longest stride length of seventh grade students was about 1.62 meters and 1.71 meters for eighth grade students.
The purpose of this study is to analyze the performance of 60-meter sprinting on the curve by using the high-speed camera as part of measurement tools. The study will provide resources for assisting teachers and coaches in their teaching and training. Ten students participated in the research study: five seventh graders and five eighth graders (average age is 11.26). The research has two aims: to understand students’ cumulative time, number of steps, stride rate, stride length and the variation of running speed, and also to analyze the impact of each condition and to discuss the methods for improving running techniques. The results of the study are: 1. During the 60-meter run, the average of cumulative time was 10.51 seconds and the average steps were 38.5 steps. 2. According to step frequency, the fastest stride rate was 3.74 seconds during the segment of 20-30m for eighth grade students; as for seventh grade students, the fastest stride rate was 3.75seconds during the segment of 20-30 meters and 30-40meters. 3. During 30-40 meters and 50-60 meters, the longest stride length of seventh grade students was about 1.62 meters and 1.71 meters for eighth grade students.
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步頻, 步輻, 60公尺彎道跑, step frequency, the longest, 60-meter sprinting