老年人抬头挺胸或预防腰酸背痛
<p><span word="Now">Now</span> <span word="here">here</span>'<span word="s">s</span> <span word="some">some</span> <span word="research">research</span> <span word="I">I</span>'<span word="m">m</span> <span word="not">not</span> <span word="sure">sure</span> <span word="I">I</span> <span word="agree">agree</span> <span word="with">with</span>. <span word="The">The</span> <span word="latest">latest</span> <span word="studies">studies</span> <span word="suggest">suggest</span> <span word="good">good</span> <span word="posture">posture</span> <span word="won">won</span>'<span word="t">t</span> <span word="actually">actually</span> <span word="protect">protect</span> <span word="against">against</span> <span word="aches">aches</span> <span word="and">and</span> <span word="pains">pains</span>.</p><p>最新的研究表明：良好的姿势实际上无助于预防疼痛。我并不确定这一研究结果是否正确。</p><p><span word="What">What</span> <span word="I">I</span>'<span word="ve">ve</span> <span word="learned">learned</span> <span word="is">is</span> <span word="that">that</span> <span word="if">if</span> <span word="I">I</span> <span word="switch">switch</span> <span word="on">on</span> <span word="my">my</span> <span word="core">core</span> <span word="muscles">muscles</span> (<span word="pull">pull</span> <span word="your">your</span> <span word="belly">belly</span> <span word="button">button</span> <span word="in">in</span>), <span word="my">my</span> <span word="neck">neck</span>, <span word="back">back</span> <span word="and">and</span> <span word="head">head</span> <span word="all">all</span> <span word="fall">fall</span> <span word="comfortably">comfortably</span> <span word="into">into</span> <span word="line">line</span> <span word="and">and</span> <span word="my">my</span> <span word="spine">spine</span> <span word="feels">feels</span> <span word="comfortable">comfortable</span> <span word="and">and</span> <span word="relaxed">relaxed</span>. <span word="My">My</span> <span word="shoulders">shoulders</span> <span word="drop">drop</span>, <span word="my">my</span> <span word="chin">chin</span> <span word="tucks">tucks</span> <span word="in">in</span>.</p><p>就我所知，如果我舒张核心肌肉（收腹）、抬头挺胸，坐得笔直，那我的脊椎就会非常舒适、放松。如果肩部下垂，我的下巴就会往后缩。</p><p><span word="What">What</span> <span word="seems">seems</span> <span word="to">to</span> <span word="matter">matter</span> <span word="more">more</span>, <span word="say">say</span> <span word="the">the</span> <span word="experts">experts</span>, <span word="is">is</span> <span word="how">how</span> <span word="long">long</span> <span word="you">you</span> <span word="stay">stay</span> <span word="in">in</span> <span word="a">a</span> <span word="single">single</span> <span word="position">position</span>. <span word="That">That</span>'<span word="s">s</span> <span word="what">what</span> <span word="will">will</span> <span word="give">give</span> <span word="you">you</span> <span word="aches">aches</span> <span word="and">and</span> <span word="pains">pains</span> - <span word="spending">spending</span> <span word="too">too</span> <span word="long">long</span> <span word="in">in</span> <span word="the">the</span> <span word="same">same</span> <span word="position">position</span>. <span word="In">In</span> <span word="other">other</span> <span word="words">words</span>, <span word="to">to</span> <span word="prevent">prevent</span> <span word="back">back</span> <span word="pain">pain</span>, <span word="keep">keep</span> <span word="moving">moving</span>. <span word="We">We</span>'<span word="re">re</span> <span word="designed">designed</span> <span word="to">to</span> <span word="keep">keep</span> <span word="moving">moving</span>.</p><p>专家表示，最为重要的是你能保持同一个姿势多长时间。这才是疼痛的原因所在--长时间保持同一个姿势。换言之，为了预防背痛，你需要不断走动。我们就是要走来走去。</p>
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