Swimming

11愛的鼓勵 4訂閱站台

溪流中的
防禦性游法

前天發生參加「溯溪」活動的遊客被溪水沖走的慘劇。所以我想在此介紹一下防禦性游法，讓大家瞭解一下在激流中要如何自保。下面那篇是我在 Google+ 中發表的主要是介紹防禦性游法。

防禦性游法就像是用玩溜滑梯的姿勢在溪流中漂浮著。身體放輕鬆、背微微拱起、面向下游、雙手微張，屁股上抬、腳趾儘量接近水面。

身體放輕鬆、背微微拱起、面向下游
感受水流的韻律，並據此調整呼吸。基本上被水抬高是吸氣，掉下來時吐氣，跟游泳一樣，只用嘴巴吸氣，可以用嘴巴或是口鼻同時吐氣。背微微拱起可以讓你有較佳的視野，並增加一些阻力，讓你的速度慢些。

雙手微張
用以控制方向、維持身體平衡。

屁股上抬
以免撞到溪流裡的石頭，或讓自己被水沖到趴到水裡。

腳趾儘量接近水面
在溪流中絕不可以站起來，即便是水很淺。站起來很可能被水沖倒，或是腳在水裡的石縫中，一旦腳被卡住，水流變大時，人可能被沖倒而溺水。所以腳趾盡量接近水面可確保腳不會被水底的東西絆住。此外遇到無法躲避的石頭時，可以用雙腳來彈開。


Defensive Swimming in White Water

As shows in the cited video, on your back (arch a bit & relax), facing downstream with your toes to the surface, and try to make yourself float on the surface. Unless the speed of flow is high that you won't be able to spread your arm like what you see in the video, then use your arms to balance yourself & control the direction. Make sure to see your toes! This is very critical, by doing so, you basically avoid foot entrapment which is very dangerous in the flowing water. So, never try to stand up in the river.

On your back facing downstream: you can see what's coming from the downstream.

Keep the toes to the surface to avoid your feet being snagged by anything at the bottom of the river and you can use the feet to absorb the blow of the rock and push yourself away from rocks.

While flowing on the surface employing defensive swimming, feel the water around you and the rhythm of the flow to adjust your breath. Look forward, when you expect any fall, take deep breath and be prepared that your head might be submerged in the water. Keep yourself away from any big rock, specially those undercut ones, and strainers. (A strainer is made up of a tree or collection of trees, branches, and debris in the water that has collected along the bank or against bridge abutments.)

Aft watching this video on defensive swimming, then you may want to watch this documentary video to see how other people negotiated various kinds of situation on swift water. https://youtu.be/i2V4U4iVukU