体育学刊 关 键 词：运动生物力学；膝关节屈伸肌力；动态等速测试；青少年女子 [gap=2055]ts biomechanics；knee joint flexor and extensor strength；dynamic isokinetic test；teenage girls
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股骨头损伤是我国青少年女子体操运动员近几年训练中较为突出的损伤之一。
The femoral head injury is one of the most outstanding sport injuries among Chinese juvenile female gymnasts in practice these years.
超过一半的受害者是二十多岁的年轻女子，三分之一是女性青少年。
More than 50% of victims are women in their 20s, and about a third are teenage girls.
据徐说，年轻女子尤其是白领的吸烟率逐年上升，并且近些年青少年抽烟率也逐渐攀升。
According to Xu, the smoking rate among young women, particularly white-collar workers, and adolescents has climbed in recent years.
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