背景與動機：肌力訓練已被證實可以有效提升競技運動表現。近年針對不對稱邊(unilateral) 與對稱邊(bilateral) 訓練的議題爭議不斷，其中包括:兩側性缺失(bilateral force deficit, BLFD) 與專項特殊性 (sport-specific) 等兩大議題。相較對稱邊訓練，針對不對稱邊訓練是否能解決兩側性缺失與提升專項特殊需求文獻尚嫌不足；再者，不對稱邊訓練在專項特殊性上是否能夠提升長時間以單側肢段發力的足球選手之運動表現也備受爭議，故須更進一步進行探討。目的：本研究旨在探討不對稱邊訓練對大專足球選手最大肌力與彈跳爆發力之影響。方法：招募9 名具2 年肌力訓練基礎之足球運動代表隊運動員為受試對象(年齡為20 ± 0.7歲，身高為168 ± 2.15 公分，體重為66 ± 4.33 公斤)，進行為期8 週的不對稱邊訓練，每週2 次。所得數據採相依樣本t 檢定(Paired Sample t-test) 進行不對稱邊訓練前後之最大肌力與原地下蹲跳爆發力(counter-movement jump) 的差異情形。顯著差異標準設為α=.05。結果：由不對稱邊訓練前與訓練後的結果數據可得知，最大肌力呈顯著差異性(p=0.00<.05) ；而彈跳爆發力未達顯著差異。結論：不對稱邊訓練可有效提升具肌力訓練經驗之足球選手的最大力量輸出；但對彈跳爆發力改善效果不明顯。
Background: In athletic sports, strength training has been confirmed to enhance the sport performance. Based on the current researches, the issue of unilateral and bilateral training has been still controversial, especially in bilateral force deficit (BLFD) and specificity in sport. It still needs to be explored whether the effects of unilateral training may fix the bilateral deficit better than bilateral training and augment the sport-specific performance for soccer players. Purpose: This study investigated the effects of unilateral strength training on maximum muscular strength and jumping power. Methods: Nine collegiate athletes (20 ± 0.7 years old) with two
year experiences of conducting strength training were recruited and underwent
unilateral resistance training. After signing the inform consent form, the physical activity readiness questionnaire (PAR-Q) and one maximum muscular strength were accessed for the selected subjects prior to the study. Paired Sample t-test was used to exam the differences between unilateral training as independent variables and physiological indexes: maximum muscular strength test in back squat, as well as jumping power in counter-movement jump. The significant level was set at α = .05.
Result: The data which were collected from before and after the unilateral training shows that there is a significant difference in the maximum muscular strength test (p=0.00<.05) ; however, there is no significant difference in the jumping power.
Conclusion: It indicated that unilateral training can improve maximum muscular
strength for soccer athletes; but may not develop the effectiveness of jumping powerevidently.
