目的：本研究的目的在利用表面肌電圖釐清大專划船選手在高強度間歇訓練與中強度持續訓練對下肢各肌肉活化之差異。方法：招募17名大專划船運動員為受試者，先在陸上划船測功儀盡全力划船2000公尺後，取得平均功率和平均槳頻，再將此資料當作基準線。讓受試者下肢肌肉黏貼肌電圖感測器後，進行中強度持續訓練後，休息30分鐘後再進行高強度間歇訓練。每位受試者皆收集七條肌肉在兩種訓練模式下的肌電圖訊號，以相依樣本t考驗檢定在高強度間歇訓練和中強度持續訓練之間的差異性。使用重覆量數二因子（2種訓練×5個時間點）變異數分析 (repeated measure two-way ANOVA) 對標準化肌電訊號和其他分析參數進行分析比較兩種訓練和五個時間點彼此之間的差異性，使用Bonferroni校正法進行事後比較 (post hoc)。所有統計分析的顯著水準皆訂為α =.05。結果：股直肌拉槳及回槳、股外側肌拉槳及回槳、股內側肌拉槳及回槳、臀大肌拉槳、腿後腱拉槳及回槳、脛骨前肌拉槳、腓腸肌拉槳及回槳在高強度間歇訓練與中強度持續訓練之間有顯著差異。股外側肌拉槳、股內側肌拉槳、臀大肌拉槳及回槳、腿後腱拉槳及回槳、脛骨前肌拉槳，在強度*時間有顯著的交互作用效果。結論：高強度間歇訓練相較於中強度持續訓練對下肢肌群是較為有效益的訓練方式，能在高強度間歇訓練提高下肢肌群的活化程度，而又因為高強度間歇訓練有間歇，所以在大多數肌肉不會有過度疲勞的情形。
Purpose: The purpose of this study was to use surface electromyography (EMG) to clarify the difference in the activation of the muscles of the lower extremity between high-intensity interval training and moderate-intensity constant rowing for college rowers. Method: Seventeen college rowing athletes were recruited as subjects. Before formal experiment, they were asked to row 2000 meters with their best effort on a land rowing ergometer. The average power and average paddle frequency were obtained and used as a baseline. Seven EMG sensors were pasted on the muscles of the subject’s lower extremity. The subject performed moderate-intensity constant rowing and high-intensity interval training with a 30-minute rest between training. A paired sample t-test was used to analyze the difference of the EMG signals of 7 muscles between the high-intensity interval training and moderate-intensity constant rowing test with the. A repeated measure two-way ANOVA was used to analyze the difference of the EMG signals of 7 muscles among two training and five time points. A Bonferroni correction method was used for post hoc. The significance level was set as α = .05. Results: There were significant differences between high-intensity interval training and moderate-intensity constant rowing in Rectus femoris catch and recovery, Vastus Lateralis catch and recovery, Vastus Medialis catch and recovery, Gluteus Maximus catch, Hamstring catch and recovery, Tibialis anterior catch, gastrocnemius catch and recovery. Vastus Lateralis catch, Vastus Medialis catch, Gluteus Maximus catch and recovery, Hamstring catch and recovery, Tibialis anterior catch, in two-way ANOVA were significant differences. Conclusion: High-intensity interval training is a more effective training method than moderate-intensity constant rowing for lower extremity muscles. It can improve the activation of lower extremity muscles during high-intensity interval training. And high-intensity interval training are “intervals”, so the most muscles will not be excessive fatigue.
