奥运の问一问

Ic3tAe

kit 发表于 8-8-2012 09:48 AM
田径疑问：
1。偶尔看到 200m， 为什么提早起步， 犯一次就ＤＱ？
　　以前都可以重赛的　（好像是犯两次 ...

1.英国改的，不知道奥运有没有改

2.你应该是在说200m，因为只是qualify，而且没竞争对手

3.跑200m average 比100m 快是因为100m 太短，bolt还没到达最快的速度比赛就结了。

shimin1214

kit 发表于 8-8-2012 09:48 AM
田径疑问：
1。偶尔看到 200m， 为什么提早起步， 犯一次就ＤＱ？
　　以前都可以重赛的　（好像是犯两次 ...

2.这个只有在决赛之前会这样做而已,如果已经确定出线了到最后冲线就不会尽全力了
3.距离不一样,发力和冲刺的方式也不一样,不能这样比较

kit

Ic3tAe 发表于 8-8-2012 10:10 AM
1.英国改的，不知道奥运有没有改

2.你应该是在说200m，因为只是qualify，而且没竞争对手

不，我看到很多次，不管是初赛，入围或决赛，那些选手冲线都会缓慢了一下。　

ibelieveindevil

kit 发表于 8-8-2012 10:22 AM
不，我看到很多次，不管是初赛，入围或决赛，那些选手冲线都会缓慢了一下。　

1：以前是第一次抢跑，全部人没事。但是从跑的时候如果再有任何一人抢跑，那个人将失去参赛资格。也就是说，第二次的人很吃亏。也就造成一些起跑不快故意抢跑，使到从跑的时候，起跑快的人不敢太快。因为太多人搞这种花招了，所以现在是一次就给你out。

2：运动员不是慢下来，相对的来说，是更快了。这是因为比赛成绩是由胸部冲线计算的。所以运动员在接近终点的时候都会调整姿势让自己的胸部提早冲线。

3：起跑时的速度比较慢。一个人通常要到30-40m的时候才能到达最高速度。所以100m的赛事会比200m慢，因为200m只要起跑一次。
同样的可以看到4x100m的比赛，平均起来，第一棒的人明显慢了，因为要较长的起跑。

kit

ibelieveindevil 发表于 8-8-2012 10:43 AM
1：以前是第一次抢跑，全部人没事。但是从跑的时候如果再有任何一人抢跑，那个人将失去参赛资格。也就是说 ...

哦？不是头吗？　我一直以为是头的？
看他们的冲线照片，他们都是伸头出去的。

格瓦拉的长征

leankheng 发表于 6-8-2012 11:07 PM
借楼主的帖一问，我想知道各国在奥运的第一个金牌 / 奖牌是在哪届、哪位运动员 / 哪个项目。
尝试在谷歌搜 ...

我只知道中国的，1984年洛杉矶奥运会 许海峰 男子气手枪慢射

ibelieveindevil

kit 发表于 8-8-2012 10:51 AM
哦？不是头吗？　我一直以为是头的？
看他们的冲线照片，他们都是伸头出去的。

来看看wiki的资料吧

StartAt the start, some athletes play psychological games such as trying to be last to the starting blocks.
The time between the gun and first kick against the starting block is measured electronically, via sensors built in the gun and the blocks. A reaction time less than 0.1 s is considered a false start. The 0.1-second interval accounts for the sum of the time it takes for the sound of the starter's pistol to reach the runners' ears, and the time it takes to react to it.

For many years a sprinter was disqualified if responsible for two false starts individually. However, this rule allowed some major races to be restarted so many times that the sprinters started to lose focus. The next iteration of the rule, introduced in February 2003, meant that one false start was allowed among the field, but anyone responsible for a subsequent false start was disqualified.


This rule led to some sprinters deliberately false-starting to gain a psychological advantage: an individual with a slower reaction time might false-start, forcing the faster starters to wait and be sure of hearing the gun for the subsequent start, thereby losing some of their advantage. To avoid such abuse and to improve spectator enjoyment, the IAAF implemented a further change in the 2010 season – a false starting athlete now receives immediate disqualification.[1] This proposal was met with objections when first raised in 2005, on the grounds that it would not leave any room for innocent mistakes. Justin Gatlin commented, "Just a flinch or a leg cramp could cost you a year's worth of work.".[2] The rule had a dramatic impact at the 2011 world championships, when current world record holder Usain Bolt was disqualified.[3][4]

Mid-raceRunners typically reach their top speed just past the halfway point of the race and they progressively decelerate in the latter stages of the race. Maintaining that top speed for as long as possible is a primary focus of training for the 100 m.[5] Pacing and running tactics do not play a significant role in the 100 m, as success in the event depends more on pure athletic qualities and technique.

FinishThe winner, by IAAF Competition Rules, is determined by the first athlete with his or her torso (not including limbs, head, or neck) over the nearer edge of the finish line.[6] When the placing of the athletes is not obvious, a photo finish is used to distinguish which runner was first to cross the line.