研究：妻子的负重能力可能更胜于丈夫
<p><span word="Wives">Wives</span> <span word="may">may</span> <span word="be">be</span> <span word="better">better</span> <span word="at">at</span> <span word="lugging">lugging</span> <span word="heavy">heavy</span> <span word="loads">loads</span> <span word="than">than</span> <span word="husbands">husbands</span>, <span word="according">according</span> <span word="to">to</span> <span word="new">new</span> <span word="research">research</span>.</p><p><span word="Scientists">Scientists</span> <span word="studying">studying</span> <span word="the">the</span> <span word="physics">physics</span> <span word="of">of</span> <span word="backpacking">backpacking</span> <span word="found">found</span> <span word="that">that</span> <span word="smaller">smaller</span> <span word="hikers">hikers</span> <span word="can">can</span> <span word="be">be</span> <span word="better">better</span> <span word="equipped">equipped</span> <span word="to">to</span> <span word="carry">carry</span> <span word="heavy">heavy</span> <span word="loads">loads</span> <span word="than">than</span> <span word="people">people</span> <span word="with">with</span> <span word="larger">larger</span> <span word="frames">frames</span>.</p><p><span word="The">The</span> <span word="reason">reason</span> <span word="may">may</span> <span word="be">be</span> <span word="linked">linked</span> <span word="to">to</span> <span word="the">the</span> <span word="fact">fact</span> <span word="that">that</span> <span word="walkers">walkers</span> <span word="carrying">carrying</span> <span word="backpacks">backpacks</span> <span word="also">also</span> <span word="have">have</span> <span word="to">to</span> <span word="haul">haul</span> <span word="their">their</span> <span word="own">own</span> <span word="body">body</span> <span word="weight">weight</span>, <span word="scientists">scientists</span> <span word="believe">believe</span>.</p><p><span word="Hiking">Hiking</span> <span word="guidelines">guidelines</span> <span word="say">say</span> <span word="that">that</span> <span word="the">the</span> <span word="weight">weight</span> <span word="of">of</span> <span word="a">a</span> <span word="pack">pack</span> <span word="should">should</span> <span word="correspond">correspond</span> <span word="to">to</span> <span word="body">body</span> <span word="size">size</span>, <span word="with">with</span> <span word="smaller">smaller</span> <span word="individuals">individuals</span> <span word="bearing">bearing</span> <span word="lighter">lighter</span> <span word="burdens">burdens</span>.</p><p><span word="Professor">Professor</span> <span word="Michael">Michael</span> <span word="O">O</span>'<span word="Shea">Shea</span>, <span word="from">from</span> <span word="Kansas">Kansas</span> <span word="State">State</span> <span word="University">University</span>, <span word="US">US</span>, <span word="who">who</span> <span word="conducted">conducted</span> <span word="the">the</span> <span word="research">research</span> <span word="using">using</span> <span word="a">a</span> <span word="computer">computer</span> <span word="model">model</span>, <span word="said">said</span>: "<span word="Online">Online</span> <span word="advice">advice</span> <span word="from">from</span> <span word="several">several</span> <span word="sources">sources</span> <span word="was">was</span> <span word="somewhat">somewhat</span> <span word="misleading">misleading</span> <span word="in">in</span> <span word="suggesting">suggesting</span> <span word="that">that</span> <span word="pack">pack</span> <span word="weight">weight</span> <span word="should">should</span> <span word="be">be</span> <span word="a">a</span> <span word="certain">certain</span> <span word="per">per</span> <span word="cent">cent</span> <span word="of">of</span> <span word="a">a</span> <span word="person">person</span>'<span word="s">s</span> <span word="weight">weight</span>. <span word="However">However</span>, <span word="as">as</span> <span word="the">the</span> <span word="size">size</span> <span word="of">of</span> <span word="any">any</span> <span word="animal">animal</span> <span word="increases">increases</span>, <span word="strength">strength</span> <span word="increases">increases</span> <span word="more">more</span> <span word="slowly">slowly</span> <span word="than">than</span> <span word="body">body</span> <span word="weight">weight</span> - <span word="the">the</span> <span word="reason">reason</span> <span word="why">why</span> <span word="tiny">tiny</span> <span word="ants">ants</span> <span word="can">can</span> <span word="carry">carry</span> <span word="a">a</span> <span word="disproportionately">disproportionately</span> <span word="heavy">heavy</span> <span word="load">load</span> <span word="compared">compared</span> <span word="to">to</span> <span word="their">their</span> <span word="weight">weight</span>.</p><p>"<span word="Overall">Overall</span> <span word="strength">strength</span> <span word="of">of</span> <span word="an">an</span> <span word="individual">individual</span> <span word="does">does</span> <span word="not">not</span> <span word="determine">determine</span> <span word="how">how</span> <span word="heavy">heavy</span> <span word="a">a</span> <span word="backpack">backpack</span> <span word="a">a</span> <span word="person">person</span> <span word="can">can</span> <span word="comfortably">comfortably</span> <span word="carry">carry</span>."</p><p><span word="Prof">Prof</span> <span word="O">O</span>'<span word="Shea">Shea</span> <span word="noticed">noticed</span> <span word="that">that</span> <span word="some">some</span> <span word="of">of</span> <span word="the">the</span> <span word="smaller">smaller</span> <span word="hikers">hikers</span> <span word="could">could</span> <span word="carry">carry</span> <span word="greater">greater</span> <span word="back">back</span> <span word="weights">weights</span> <span word="than">than</span> <span word="larger">larger</span> <span word="students">students</span> <span word="with">with</span> <span word="similar">similar</span> <span word="fitness">fitness</span> <span word="levels">levels</span>.</p><p><span word="Incorporating">Incorporating</span> <span word="pack">pack</span> <span word="weight">weight</span> <span word="and">and</span> <span word="body">body</span> <span word="proportion">proportion</span> <span word="data">data</span>, <span word="he">he</span> <span word="came">came</span> <span word="up">up</span> <span word="with">with</span> <span word="an">an</span> <span word="equation">equation</span> <span word="to">to</span> <span word="determine">determine</span> <span word="the">the</span> <span word="maximum">maximum</span> <span word="rucksack">rucksack</span> <span word="load">load</span> <span word="suitable">suitable</span> <span word="for">for</span> <span word="a">a</span> <span word="person">person</span> <span word="of">of</span> <span word="given">given</span> <span word="size">size</span>.</p><p>据《每日电讯报》报道，妻子的负重能力可能更胜于丈夫。</p>
页:
[1]