体坛英语资讯：Role of running cadence not as much as previously thought
<p><span word="CHICAGO">CHICAGO</span>, <span word="March">March</span> 28-- <span word="Running">Running</span> <span word="at">at</span> <span word="a">a</span> <span word="prescribed">prescribed</span>, <span word="one">one</span>-<span word="size">size</span>-<span word="fits">fits</span>-<span word="all">all</span> "<span word="optimal">optimal</span>" <span word="cadence">cadence</span> <span word="doesn">doesn</span>'<span word="t">t</span> <span word="play">play</span> <span word="as">as</span> <span word="big">big</span> <span word="a">a</span> <span word="role">role</span> <span word="in">in</span> <span word="speed">speed</span> <span word="and">and</span> <span word="efficiency">efficiency</span> <span word="as">as</span> <span word="once">once</span> <span word="thought">thought</span>, <span word="said">said</span> <span word="a">a</span> <span word="study">study</span> <span word="posted">posted</span> <span word="on">on</span> <span word="the">the</span> <span word="website">website</span> <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Michigan">Michigan</span> <span word="on">on</span> <span word="Thursday">Thursday</span>.</p><p><span word="To">To</span> <span word="find">find</span> <span word="out">out</span> <span word="what">what</span> <span word="determines">determines</span> <span word="cadence">cadence</span> <span word="and">and</span> <span word="how">how</span> <span word="much">much</span> <span word="cadence">cadence</span> <span word="really">really</span> <span word="matters">matters</span>, <span word="Geoff">Geoff</span> <span word="Burns">Burns</span>, <span word="an">an</span> <span word="elite">elite</span> <span word="marathoner">marathoner</span> <span word="and">and</span> <span word="UM">UM</span> <span word="doctoral">doctoral</span> <span word="student">student</span> <span word="in">in</span> <span word="kinesiology">kinesiology</span>, <span word="had">had</span> <span word="the">the</span> <span word="top">top</span> 20 <span word="elite">elite</span> <span word="male">male</span> <span word="and">and</span> <span word="female">female</span> <span word="runners">runners</span> <span word="record">record</span> <span word="their">their</span> <span word="cadence">cadence</span> <span word="during">during</span> <span word="the">the</span> 100<span word="K">K</span> <span word="International">International</span> <span word="Association">Association</span> <span word="of">of</span> <span word="Ultrarunners">Ultrarunners</span> <span word="World">World</span> <span word="Championship">Championship</span> <span word="in">in</span> 2016.</p><p><span word="While">While</span> <span word="the">the</span> <span word="average">average</span> <span word="number">number</span> <span word="of">of</span> <span word="steps">steps</span> <span word="per">per</span> <span word="minute">minute</span> <span word="was">was</span> 182, <span word="the">the</span> <span word="number">number</span> <span word="of">of</span> <span word="steps">steps</span> <span word="per">per</span> <span word="minute">minute</span> <span word="per">per</span> <span word="mile">mile</span> <span word="varied">varied</span> <span word="enormously">enormously</span> <span word="by">by</span> <span word="individual">individual</span>.</p><p>"<span word="Some">Some</span> <span word="ran">ran</span> <span word="at">at</span> 160 <span word="steps">steps</span> <span word="per">per</span> <span word="minute">minute</span> <span word="and">and</span> <span word="others">others</span> <span word="ran">ran</span> <span word="at">at</span> 210 <span word="steps">steps</span> <span word="per">per</span> <span word="minute">minute</span>, <span word="and">and</span> <span word="it">it</span> <span word="wasn">wasn</span>'<span word="t">t</span> <span word="related">related</span> <span word="at">at</span> <span word="all">all</span> <span word="to">to</span> <span word="how">how</span> <span word="good">good</span> <span word="they">they</span> <span word="were">were</span> <span word="or">or</span> <span word="how">how</span> <span word="fast">fast</span> <span word="they">they</span> <span word="were">were</span>," <span word="Burns">Burns</span> <span word="said">said</span>. "<span word="Height">Height</span> <span word="influenced">influenced</span> <span word="it">it</span> <span word="a">a</span> <span word="little">little</span> <span word="bit">bit</span>, <span word="but">but</span> <span word="even">even</span> <span word="people">people</span> <span word="who">who</span> <span word="were">were</span> <span word="the">the</span> <span word="same">same</span> <span word="height">height</span> <span word="had">had</span> <span word="an">an</span> <span word="enormous">enormous</span> <span word="amount">amount</span> <span word="of">of</span> <span word="variability">variability</span>."</p><p><span word="The">The</span> <span word="main">main</span> <span word="takeaway">takeaway</span> <span word="for">for</span> <span word="runners">runners</span> <span word="is">is</span> <span word="that">that</span> <span word="cadence">cadence</span> <span word="is">is</span> <span word="highly">highly</span> <span word="individual">individual</span>, <span word="and">and</span> <span word="the">the</span> <span word="body">body</span> <span word="knows">knows</span> <span word="what">what</span>'<span word="s">s</span> <span word="optimal">optimal</span>. <span word="This">This</span> <span word="means">means</span> <span word="runners">runners</span> <span word="shouldn">shouldn</span>'<span word="t">t</span> <span word="necessarily">necessarily</span> <span word="try">try</span> <span word="to">to</span> <span word="manipulate">manipulate</span> <span word="cadence">cadence</span> <span word="to">to</span> <span word="reach">reach</span> <span word="the">the</span> 180 <span word="steps">steps</span>, <span word="but">but</span> <span word="rather">rather</span>, <span word="monitor">monitor</span> <span word="cadence">cadence</span> <span word="as">as</span> <span word="their">their</span> <span word="running">running</span> <span word="progresses">progresses</span>.</p><p>"<span word="It">It</span>'<span word="s">s</span> <span word="a">a</span> <span word="barometer">barometer</span> <span word="and">and</span> <span word="not">not</span> <span word="a">a</span> <span word="governor">governor</span>," <span word="Burns">Burns</span> <span word="said">said</span>. "<span word="There">There</span>'<span word="s">s</span> <span word="no">no</span> <span word="magical">magical</span> <span word="number">number</span> <span word="that">that</span>'<span word="s">s</span> <span word="dogmatically">dogmatically</span> <span word="right">right</span> <span word="for">for</span> <span word="everybody">everybody</span>."</p><p><span word="For">For</span> <span word="years">years</span>, <span word="many">many</span> <span word="coaches">coaches</span> <span word="and">and</span> <span word="practitioners">practitioners</span> <span word="thought">thought</span> <span word="that">that</span> <span word="cadence">cadence</span> <span word="should">should</span> <span word="remain">remain</span> <span word="constant">constant</span> <span word="as">as</span> <span word="speed">speed</span> <span word="increases">increases</span>, <span word="which">which</span> <span word="required">required</span> <span word="longer">longer</span> <span word="steps">steps</span>. <span word="Burns">Burns</span> <span word="says">says</span> <span word="longer">longer</span> <span word="steps">steps</span> <span word="takes">takes</span> <span word="more">more</span> <span word="energy">energy</span>, <span word="and">and</span> <span word="his">his</span> <span word="study">study</span> <span word="found">found</span> <span word="that">that</span> <span word="cadence">cadence</span> <span word="naturally">naturally</span> <span word="increased">increased</span> <span word="four">four</span> <span word="to">to</span> <span word="five">five</span> <span word="steps">steps</span> <span word="per">per</span> <span word="minute">minute</span> <span word="per">per</span> <span word="mile">mile</span> <span word="as">as</span> <span word="runners">runners</span> <span word="ran">ran</span> <span word="faster">faster</span>.</p>
页:
[1]