本研究的主要目的在探討八人制拔河運動身體肌力訓練、運動適能、心跳變化與拉力變化，針對：一、拔河選手之運動適能與拉力關係。二、拔河選手肌力與拉力關係。三、心跳於不同姿勢的差異。方法：以高中拔河隊選手共21名選手為研究對象（男生12名，16.91±0.66歲、女生9名，17.00±0.50歲）。進行運動適能測驗﹙1600公尺、一分鐘仰臥起坐、20秒反覆測步、60公尺立姿快跑、立定三次跳﹚、肌力測驗﹙後深蹲、窄臥推、窄硬舉、坐姿划船等最大肌力﹚、不同姿勢拉力值與心跳率進行測驗。將收集到之實驗數據以spss12.0進行統計分析，分別以單因子變異數分析（one-way ANOVA）比較三種姿勢之拉力與心跳之差異，以皮爾森相關係數（Pearson correlation coefficient）進行體適能與肌力測驗與拉力進行相關性考驗，顯著水準為p<.05。結果：不同姿勢在拉力上達顯著差異低姿勢顯著高於高、中姿勢（F=352.32, p<.05），與各項肌力測試之相關結果顯示在男子各項肌力的比較與拔河姿勢的相關比較，高姿與後深蹲、高姿與窄硬舉、中姿與窄硬舉達顯著相關（p<.05），女生高姿與窄硬舉達顯著相關（p<.05）。結論：各姿勢之拉力有顯著差異，低姿勢產生較高的拉力，同時身體也會產生較高的心跳，但在五分鐘的恢復則無差異。選手肌力、運動適能與拉力有顯著正相關。

　　The purpose of this study was to explore the relationship between tug of war athletics’ muscle strength, exercise relate fitness, heart rate variety and pull power. Method: 21 tug of war athletics(12 males, 16.91±0.66 years old; 9 females, 17.00±0.50 years old ) take exercise relate fitness test (1600 meters running test, 60minutes sit up test, 60 meters sprint speed test, 20 seconds side step test and standing triple jumps), muscle strength test(Squatting, bench press, narrow deadlift, seated over rows maximal strength test), different position pull power and heart rate test. Using SPSS 12.0 One-way ANOVA to compare the pull power between different positions. Pearson correlation coefficient to find the relation between physical fitness and pull power, All test significant different level was p<.05. Result: There were significant different in pull power between different position. In post hoc test shows that low position pull power were significant bigger then middle and high position pull power（F = 352.32, p < .05）. In correlation between different pull position and muscle power test, it shows there were significant correlation at male high pull power and squatting, narrow deadlift; middle position and narrow deadlift（p < .05）. In female high pull power and narrow deadlift have significant correlation（p <.05）. Conclusion: there were significant different between three pulling position in poll power. Low pull position will be high pull power and it also more hart rate in the same times. There were significant correlation between muscle strength, exercise relate fitness and pull power.