英文摘要
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Purpose: A claim for time-out in sports competition is a decision making. The aim of this study was to investigate the time-out timing from top-notch coaches and players, and also investigated the benefit after time-out. Method: Take quarter final of Men's team WTTC 2016 as subject, review the videos and collect the data of time-out from quarter final to final. The obtained data establishes basic data by descriptive statistics, and analyzes the distribution of time-out timimg times by the Test of Goodness-of-Fit. Result: Time-out rate was 83%, the highest rate of sets was in 3rd, and majority was in the middle stage. The maximum was when losing 2-3 score consecutively. The serve right did not differ a lot. Time-out rate in leading one is lower than trailing one. The winning rate is about 50% in 1-4 score after time-out was used. Conclusion: Nowadays time-out is highly valued and there is a tendency to shift the timing of time-out to an earlier time. However it both has a positive effect to time-out either in leading or trailing status.
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