shoulder-girdle 中文意思是什麼
shoulder-girdle
解釋
上肢帶-
The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
奔龍類是一類較為特殊的手盜龍類（ maniraptora ） ，它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相似或接近的特徵，主要表現在：叉骨u形與始祖鳥和孔子鳥類的相同，背肋鉤狀突在孔子鳥類和個別反鳥類中也存在，肩臼窩絕大部分指向側方類似於始祖鳥，肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相似，前肢從比例上講顯得較長，大的半月形腕骨使肘部能向側方折過來，恥骨伸向後下方，距骨上升突與原始鳥類中的為同源結構，羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。 -
This tissue is found mainly about the shoulder girdle.
這種組織主要見于肩胛帶周圍。 -
Conclusion : the muscle strength of shoulder girdle is weak in amateur sprinters, indicating that it is one of the principal factors affecting the performance. the extensor muscle strength of shoulder joint is more influencing than the flexor muscle strength
應用要點：文章以專業和業余的短跑運動員為觀察對象，測試了其肩關節各肌群的力矩，結果發現專業運動員無論是肩關節屈肌群還是伸肌群力矩均大於業余運動員，證實了短跑運動員肩帶肌群力量是造成運動員成績差異的主要原因之一。
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