为什么你会肩痛?如何缓解呢
<p><span word="What">What</span> <span word="causes">causes</span> <span word="shoulder">shoulder</span> <span word="pain">pain</span>?</p><p>什么原因导致了肩痛？</p><p><span word="Shoulder">Shoulder</span> <span word="pain">pain</span> <span word="is">is</span> <span word="a">a</span> <span word="common">common</span> <span word="ache">ache</span> <span word="in">in</span> <span word="the">the</span> <span word="U">U</span>.<span word="S">S</span>.: <span word="By">By</span> <span word="some">some</span> <span word="estimates">estimates</span>, <span word="as">as</span> <span word="many">many</span> <span word="as">as</span> 67% <span word="of">of</span> <span word="people">people</span> <span word="experience">experience</span> <span word="shoulder">shoulder</span> <span word="discomfort">discomfort</span> <span word="at">at</span> <span word="some">some</span> <span word="point">point</span> <span word="over">over</span> <span word="the">the</span> <span word="course">course</span> <span word="of">of</span> <span word="their">their</span> <span word="lives">lives</span>. <span word="The">The</span> <span word="most">most</span> <span word="mobile">mobile</span> <span word="joint">joint</span> <span word="in">in</span> <span word="your">your</span> <span word="body">body</span>, <span word="the">the</span> <span word="shoulder">shoulder</span> <span word="is">is</span> <span word="made">made</span> <span word="up">up</span> <span word="of">of</span> <span word="bones">bones</span> <span word="held">held</span> <span word="in">in</span> <span word="place">place</span> <span word="by">by</span> <span word="muscles">muscles</span>, <span word="tendons">tendons</span>, <span word="and">and</span> <span word="ligaments">ligaments</span>. <span word="They">They</span>'<span word="re">re</span> <span word="all">all</span> <span word="designed">designed</span> <span word="to">to</span> <span word="work">work</span> <span word="together">together</span> <span word="to">to</span> <span word="allow">allow</span> <span word="the">the</span> <span word="shoulder">shoulder</span> <span word="to">to</span> <span word="move">move</span> <span word="freely">freely</span> <span word="in">in</span> <span word="many">many</span> <span word="different">different</span> <span word="directions">directions</span>. <span word="This">This</span> <span word="allows">allows</span> <span word="you">you</span> <span word="to">to</span> <span word="do">do</span> <span word="everything">everything</span> <span word="from">from</span> <span word="raising">raising</span> <span word="your">your</span> <span word="arms">arms</span> <span word="over">over</span> <span word="your">your</span> <span word="head">head</span> <span word="to">to</span> <span word="throwing">throwing</span> <span word="a">a</span> <span word="baseball">baseball</span> <span word="and">and</span> <span word="scratching">scratching</span> <span word="your">your</span> <span word="back">back</span>. "<span word="Unfortunately">Unfortunately</span>, <span word="this">this</span> <span word="mobility">mobility</span> <span word="comes">comes</span> <span word="at">at</span> <span word="the">the</span> <span word="expense">expense</span> <span word="of">of</span> <span word="stability">stability</span>," <span word="and">and</span> <span word="that">that</span> <span word="leaves">leaves</span> <span word="the">the</span> <span word="shoulder">shoulder</span> <span word="vulnerable">vulnerable</span> <span word="to">to</span> <span word="injury">injury</span>, <span word="says">says</span> <span word="Clifford">Clifford</span> <span word="Stark">Stark</span>, <span word="medical">medical</span> <span word="director">director</span> <span word="of">of</span> <span word="Sports">Sports</span> <span word="Medicine">Medicine</span> <span word="at">at</span> <span word="Chelsea">Chelsea</span> <span word="in">in</span> <span word="New">New</span> <span word="York">York</span> <span word="City">City</span>. <span word="Factor">Factor</span> <span word="in">in</span> <span word="the">the</span> <span word="wear">wear</span> <span word="and">and</span> <span word="tear">tear</span> <span word="of">of</span> <span word="everyday">everyday</span> <span word="life">life</span> <span word="and">and</span> <span word="it">it</span>'<span word="s">s</span> <span word="easy">easy</span> <span word="to">to</span> <span word="see">see</span> <span word="why">why</span> <span word="you">you</span>'<span word="re">re</span> <span word="shouldering">shouldering</span> <span word="so">so</span> <span word="much">much</span> <span word="pain">pain</span>.</p><p>在美国，肩痛是常见的症状。据估计，多达67%的人会在一生中的某个时刻肩痛。肩膀是人体最活跃的关节，由骨头、肌肉、肌腱和韧带组成。这些成分注定要一起运作，这样肩膀才能在各个方向上自由移动。因此你能抬手越过头顶扔棒球、还能挠背。"不幸的是，这种移动是以稳定为代价的，"导致肩膀很容易受伤，纽约市切尔西运动医学的医疗总监克利福德·斯塔克说道。日常生活中，磨损肩膀的因素很多，因此你的肩膀为什么这么痛也就不言自明了。</p>
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