走跑交替能节省体能-凯发k8官网

走跑交替能节省体能
文章来源:未知 文章作者:enread 发布时间:2013-01-31 06:23 字体: [ ] 
(单词翻译:双击或拖选)
forget "slow and steady wins the race." a new study shows that, at least sometimes, the best way to 1 energy and reach your destination on time is to alternate between walking and running -- whether your goal is the bus stop or a marathon finish line. in the january 30, 2013 issue of the journal of the royal society 2, researchers examined how people budget their time as they travel on foot to reach a destination at a particular appointed time. the study found that when people have neither too much time nor too little time to reach their destination, they naturally switch back and 3 between walking and running, which turns out to be the best strategy for saving energy.
 
the study is the first of its kind not conducted on 4(跑步机), and it supports the notion that the human body has an 6 sense of how to vary speed to 7 energy when we're on the move in our natural environment.
 
"we don't live our lives on a 5," said manoj srinivasan, co-author of the study and assistant professor of mechanical engineering at ohio state university. "to better understand how we move in our everyday life, and how our spontaneous movements relate to energy 8, we have to study what people do away from the treadmill. once we have a good enough understanding of how we naturally move to conserve energy, we can build a solid theory and apply it in practical ways -- designing better shoes, or better prosthetics(修复学) that let people walk using less energy."
 
in tests, 36 college students were asked to travel a distance a little longer than a football field, either on pavement outdoors or inside a school hallway. they were given a stopwatch, and told to arrive at their destination at a specific time -- not before and not after, but right on time. the students were free to set their own pace to achieve that goal, and were not told whether to walk or run.
 
sometimes the students were told to make the trip in two minutes, so they could walk the entire way at a 9 2 miles per hour (about 1 meter per second) if they chose. at the other extreme, they were 10 only 30 seconds, so that they had to run the entire way at a brisk pace of 9 miles per hour (about 4 meters per second) to get there on time.
 
the researchers were most interested in what the students would do when they were allotted travel times between these two extremes. on a treadmill, people have to adjust their pace to match the machine in order to stay on the conveyer belt, but this study would reveal how people manage their gait, or movement pattern, when they can speed up and slow down whenever they want.
 
the study revealed the existence of a "transition region" between 4.5-6.7 miles per hour (about 2-3 meters per second) when the students tended to make the trip through a mix of walking and running. regardless of any variable -- fitness level, height, weight, leg length, the amount of time they were given for the trip, whether they were indoors or out -- all the students employed a mixture of walking and running when they were moving at speeds within the transition region.


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1 vyryp     
vt.保存,保护,节约,节省,守恒,不灭
参考例句:
  • he writes on both sides of the sheet to conserve paper.他在纸张的两面都写字以节省用纸。
  • conserve your energy,you'll need it!保存你的精力,你会用得着的!
2 e5wx1     
n.接合部位,分界面;v.(使)互相联系
参考例句:
  • my computer has a network interface,which allows me to get to other computers.我的计算机有网络接口可以与其它计算机连在一起。
  • this program has perspicuous interface and extensive application. 该程序界面明了,适用范围广。
3 hzdz2     
adv.向前;向外,往外
参考例句:
  • the wind moved the trees gently back and forth.风吹得树轻轻地来回摇晃。
  • he gave forth a series of works in rapid succession.他很快连续发表了一系列的作品。
4 f1e353a2026c24d422c24a6c3ce1fa08     
n.枯燥无味的工作[生活方式]( treadmill的名词复数 );(尤指旧时由人或牲畜踩动踏板使之转动的)踏车;(锻炼身体的)跑步机,走步机
参考例句:
  • but soon, you may think microwave ovens and treadmills too. 但是不久的将来,您可能还会想到微波炉或健身踏车什么的。 来自互联网
  • the gym has several treadmills an x-trainer machine, bicycles, weights and mats for floor work. 体育馆里配备了:跑步机、教练机、自行车、哑铃和专为做地板运动准备的垫子。 来自互联网
5 1poyz     
n.踏车;单调的工作
参考例句:
  • the treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
  • drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。
6 xbxzc     
adj.天生的,固有的,天赋的
参考例句:
  • you obviously have an innate talent for music.你显然有天生的音乐才能。
  • correct ideas are not innate in the mind.人的正确思想不是自己头脑中固有的。
7 wioxy     
v.使优化 [=optimise]
参考例句:
  • we should optimize the composition of the standing committees.优化人大常委会组成人员的结构。
  • we should optimize our import mix and focus on bringing in advanced technology and key equipment.优化进口结构,着重引进先进技术和关键设备。
8 xpbzm     
n.(时间、劳力、金钱等)支出;使用,消耗
参考例句:
  • the entry of all expenditure is necessary.有必要把一切开支入账。
  • the monthly expenditure of our family is four hundred dollars altogether.我们一家的开销每月共计四百元。
9 51txb     
adj.悠闲的;从容的,慢慢的
参考例句:
  • we walked in a leisurely manner,looking in all the windows.我们慢悠悠地走着,看遍所有的橱窗。
  • he had a leisurely breakfast and drove cheerfully to work.他从容的吃了早餐,高兴的开车去工作。
10 5653ecda52c7b978bd6890054bd1f75f     
分配,拨给,摊派( allot的过去式和过去分词 )
参考例句:
  • i completed the test within the time allotted . 我在限定的时间内完成了试验。
  • each passenger slept on the berth allotted to him. 每个旅客都睡在分配给他的铺位上。
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tag标签: energy walking running
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