One reason for making that adjustment is the very real concern that in a sprint race, breathing can slow a swimmer down. If each breath might cost you slightly in stroke efficiency, the less of them you take, the faster you might go. Holding your breath – perhaps breathing only twice or less – in a 50 Free undoubtedly helps your speed, particularly because that race is short enough that your muscles mainly consume oxygen already in your bloodstream. But when racing for, say, 45 seconds to over a minute, you need to get fresh oxygen to your muscles. Because of this, holding your breath could restrict your ability to finish such races strongly. The ideal would be to be able to breathe as often as you want, without sacrificing any speed.
习惯或者适应这种因屏息而引起的不适的其中一个很现实的原因,就是,在冲刺竞赛中呼吸在某种程度上减缓了竞技者的速度。如果每次呼吸都能在你前进中起到微弱的阻碍划臂效率的作用,那么呼吸次数越少,你的速度就能更快。屏息——或许呼吸一到两次——在五十米自由泳竞赛中,无疑能助你提高速度,特别是因为在五十米这样的短程冲刺竞赛中,你的肌肉组织主要消耗的是含在你血液中的氧。但是如果竞赛时间超过,比如说,四十五秒或者超过一分种的话,你需要为你的肌肉组织补充新鲜氧气。正因如此,屏息会限制你在中长距离竞赛中的发挥。最为理想的状态就是,当你身体需要氧气时呼吸,且在不减速的状况下。
The key to maximizing both air and speed is to breathe as seamlessly as possible. Let’s start with the mechanics of getting air into your lungs:
同时汲取最大量氧气、保持最高速度的要义就是尽可能地天衣无缝般呼吸。现在,让我们开始了解向肺部填充氧气的技术吧:
· Inhale through your mouth; exhale through your mouth 70% and nose 30%. Are these figures exact? No, just keep enough air pressure coming from your nose to keep the water out.
· 以口吸气;呼气时,口呼百分之七十,鼻呼百分之三十。量衡要如此精确吗?不一定,你要做的仅仅是保证从鼻腔释放足够量的气体以防止水溺入。 |