The Influence on Tennis Serve Performance between the Groups of National Players and Non-national Players in terms of with/without Audiences and with/without Receivers
Keywords:National players, Non-national players, Serve successful rate, Speed, Accurate rate, 非國手, 發球進球率, 發球進球速度, 發球準確率, 雙發失誤, 國手, Double fault
LANGUAGE NOTE | Document text in Chinese; abstract also in English.
The main aim of this study was to investigate the influence on tennis serve performance in terms of with/without audiences and with/without receivers. The subjects were 18 tennis players - 13 from the National College of Physical Education and Sports and 5 from the Army tennis team. They were classified into two main groups: national players (Gl) and non-national players (G2). Successful rate, speed, accurate rate and double-fault of serve were recorded under the circumstances of with/without audiences and with/without receivers. Four different conditions were used: (1) without audiences and without receivers, (2) without audience and with receivers, (3) with audiences and without receivers, and (4) with audiences and with receivers. Independent t-test was used to compare the difference between the groups of Gl and G2 under the four situations whereby α level was set at .05. As a consequence, the results reveal that there was no significant difference between these groups of tennis players under the circumstances of first/second serve successful rate, first/second serve speed, first/second serve accurate rate and double-fault, with/without audiences and with/without receivers. Nevertheless, the non-national players appeared to perform better than the national players under the circumstances of first/second serve successful rate, first/second serve accurate rate and double-fault, with audiences and with receivers.
本研究主要是探討國手與非國手在練習發球時，有、無觀眾在場與有、無人接發球對發球表現的影響，以提供國內敎練與選手作為訓練的依據。以13名國立體育學院運動技術系網球隊選手及5名國軍網球隊選手，合計18名男選手為研究對象。共分為國手組及非國手組兩組自願擔任本研究的受試者。記錄這些受試選手在有、無觀眾在場與有、無人接發球四種情境下的發球表現情形(進球率、進球速度、準確率及雙發失誤)。共分四種情境：(1)無觀眾在場、無人接球時。(2)無觀眾在場、有人接發球時。(3)有觀眾在場、無人接發球時。(4)有觀眾在場、有人接發球時。以獨立樣本t考驗來考驗國手組與非國手組在四種不同情境下的發球表現是否有差異。顯著水準設在α = .05。本研究結果發現比較國手與非國手在四種情況下第一與第二發球進球率、第一與第二發球進球速度、第一與第二發球準確率以及雙發失誤的t考驗均未達顯著水準，但國手的表現普遍較非國手來得好。但唯有在「有觀眾在場與有人接發球」情況下，非國手的第一及第二發球進球率、第一及第二發球準確率及雙發失誤較國手有較好的傾向。
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