Re: questions on swimming
It's taken me about a year to be able to do that, but really that's nothing for a competitive swimmer. Those guys do that just as a warm up a couple of times a day.
It's a major workout for me.
I went onto a swimmer's forum for advice and was told that most serious swimmers do 2000 meters per 30 mins. Now that is impressive.
I crawl 25 meters then breaststroke the other and alternate like that for 60 lengths.
It's all about technique, if your technique is good you'll be faster and will have better endurance.
Get some lessons if poss.
Swim at least 2 x week, set yourself goals. Use a clock and time yourself. Gradually you will improve but I cannot stress enough that technique is king.
Personally, I'm self taught but I have read books so there is an element of teaching. It's just taken me longer to be where I want to be and I'm still not that good.
It's not that hard really.
Note of warning though, it is pretty boring ploughing up and down. If you learn how to tumbleturn, it gives you more to think about....like trying not to drown!!!!
Also there are swimming aids like floats and paddles which, if used correctly can improve technique.
Swimming is like anything, to be good you have to practice.