After being "spoken to" by the lifeguards about training SDKs, I am wondering how dangerous it really is to do multiple full 25 SCY SDKs.
Consider this set:
Fins on.
10x/2:00
This is just an example. Basically I'm referring to any set that contains multiple full 25 SDKs on a fixed time interval.
I've seen multiple people post sets like this in their blogs.
I've heard that on some age group teams the coach will demand that swimmers complete N full 25 SDKs on some fixed interval or everyone does it over.
The above observations would suggest that training full 25 SCY SDKs is a reasonable thing to do, but I've talked to some coaches and guards who seem to genuinely believe that even going past mid-pool underwater is just asking for trouble.
For a reasonably fit masters or age-group swimmer (Let's say a "BB" or stronger swimmer between the ages of 10 and 70 who can comfortably train 4x1hr/week), what do you think:
-Sets like these are generally safe as long as you don't do something stupid, like intentionally hyperventilate to the point of making yourself light headed before your push-off.
-Sets like this are generally safe, but you can never know if you have an un-diagnosed medical condition that renders them very dangerous so you shouldn't do them.
-Such sets are a little risky, but it's a risk you have to take to get really good at SDKs.
-If you do this kind of training regularly, you will eventually pass out under water and possibly die.
-The modern world is sufficiently rampant with litigation that no one can admit that sets like these are safe, even as anonymous vote on this forum.
I believe 25s underwater are reasonably safe for a proficient swimmer.If they are taking less than 20 sec and you haven't hyperventilated you should be well within safe parameters.Past 25s,or with slower swimmers I think one wold be pushing there luck.Also,if you are underwater and feel the urge to breathe,don't fight it,come up and breathe.
I believe 25s underwater are reasonably safe for a proficient swimmer.If they are taking less than 20 sec and you haven't hyperventilated you should be well within safe parameters.Past 25s,or with slower swimmers I think one wold be pushing there luck.Also,if you are underwater and feel the urge to breathe,don't fight it,come up and breathe.