ballastbelly
Contributor
i ve seen many references to controlling the first exhalation on surfacing to reduce chance of samba/blackout.
the gist of what i understood is that too rapid an exhalation will cause a sort of oxygen vaccum/low pressure area in the lungs and this will leach out oxygen from the surrounding blood/brain and bring you to the point of collapse.
how do you control an exhalation? the urge is to let it all out so you can quickly gulp in that first breath of fresh air.
do you purse your lips like you are blowing out a birthday candle? do you count to yourself while exhaling to make exhale last 3seconds?
thanks
B
the gist of what i understood is that too rapid an exhalation will cause a sort of oxygen vaccum/low pressure area in the lungs and this will leach out oxygen from the surrounding blood/brain and bring you to the point of collapse.
how do you control an exhalation? the urge is to let it all out so you can quickly gulp in that first breath of fresh air.
do you purse your lips like you are blowing out a birthday candle? do you count to yourself while exhaling to make exhale last 3seconds?
thanks
B