本研究目的為探討大專女子足球選手慣用腳與非慣用腳;曾經受傷與未曾受傷受試者膝關節仲肌與屈肌肌力的差異，以及膝屈肌與膝仲肌的比值(H/Q)。18位受試者(平均年齡19.2士1.3歲，身高160.4 + 3.5 �分，體重53.9+ 4.7 �斤)使用Merac等速肌力測量儀，在角速度60/sec、180/sec和300/sec下測試兩腳的膝關節肌力。結果發現在180/sec下膝仲肌最大扭力值慣用 腳顯著(p<.05)大於非慣用腳，表示選手偏重使用慣用腳以中等速度進行302尺以內的傳球。受試者在中等及快速收縮下H/Q比值(65-79%)高於慢速收 縮(49-52%)。此外，曾經受傷者左右兩腳肌力僅及未曾受傷者的85-88%' 顯示肌力與傷害有相當密切的關係。結論:女子足球選手加強非慣用腳訓練，應有助於使兩腳肌力趨於平衡。曾經受傷的受試者有必要進行肌力增強訓練，以避免再度發生運動傷害。

Thepurpose of this study was to compare with the extensors and flexors for muscle strength of knees between 1) the dominant and non-dominant， 2) the subjects of injured and uninjured， And evaluated the rates between flexors and extensors ( H/ Q ) in the college female· soccer players. 18 subjects (age=19.2b1.3 yrs.， ht.=160.4 3.5cm， wt.=53.9 4.7kg.) used Merac Isokinetic Dynamometer to test muscle strength of knees at the speeds of 60 deg/sec， 180 deg/sec and 300 deg/sec. Results indicated that the dominant were significantly (p<0.05) better than the non-dominant for knees extensor peak torque at the speed of 180 deg/sec. which expressed that the players over using the dominant with middle speed to passing within the thirty meters. Thecontractions of middle and fast speed (65-79%) was higher than slow (49-52%) on the H/Q ratios. Besides， the subjects of injured was 85-88% to the uninjured on the muscle strength of knees， it meant that the relations between the muscle strength and injured. Conclusions: Itcan keep the balance on the muscle strength of knees as reinforcing the training of non-dominant to female soccer players. Thesubjects who has injured must strengthen the muscle strength training to avoid getting the sporting injury agam.